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-rw-r--r--test/ruby/test_array.rb3660
1 files changed, 3660 insertions, 0 deletions
diff --git a/test/ruby/test_array.rb b/test/ruby/test_array.rb
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+# coding: US-ASCII
+# frozen_string_literal: false
+require 'test/unit'
+require "delegate"
+require "rbconfig/sizeof"
+
+class TestArray < Test::Unit::TestCase
+ def setup
+ @verbose = $VERBOSE
+ @cls = Array
+ end
+
+ def teardown
+ $VERBOSE = @verbose
+ end
+
+ def assert_equal_instance(x, y, *msg)
+ assert_equal(x, y, *msg)
+ assert_instance_of(x.class, y)
+ end
+
+ def test_percent_i
+ assert_equal([:foo, :bar], %i[foo bar])
+ assert_equal([:"\"foo"], %i["foo])
+ end
+
+ def test_percent_I
+ x = 10
+ assert_equal([:foo, :b10], %I[foo b#{x}])
+ assert_equal([:"\"foo10"], %I["foo#{x}])
+ end
+
+ def test_0_literal
+ assert_equal([1, 2, 3, 4], [1, 2] + [3, 4])
+ assert_equal([1, 2, 1, 2], [1, 2] * 2)
+ assert_equal("1:2", [1, 2] * ":")
+
+ assert_equal([1, 2].hash, [1, 2].hash)
+
+ assert_equal([2,3], [1,2,3] & [2,3,4])
+ assert_equal([1,2,3,4], [1,2,3] | [2,3,4])
+ assert_equal([1,2,3] - [2,3], [1])
+
+ x = [0, 1, 2, 3, 4, 5]
+ assert_equal(2, x[2])
+ assert_equal([1, 2, 3], x[1..3])
+ assert_equal([1, 2, 3], x[1,3])
+ assert_equal([3, 4, 5], x[3..])
+ assert_equal([0, 1, 2], x[..2])
+ assert_equal([0, 1], x[...2])
+
+ x[0, 2] = 10
+ assert_equal([10, 2, 3, 4, 5], x)
+
+ x[0, 0] = -1
+ assert_equal([-1, 10, 2, 3, 4, 5], x)
+
+ x[-1, 1] = 20
+ assert_equal(20, x[-1])
+ assert_equal(20, x.pop)
+ end
+
+ def test_array_andor_0
+ assert_equal([2], ([1,2,3]&[2,4,6]))
+ assert_equal([1,2,3,4,6], ([1,2,3]|[2,4,6]))
+ end
+
+ def test_compact_0
+ a = [nil, 1, nil, nil, 5, nil, nil]
+ assert_equal [1, 5], a.compact
+ assert_equal [nil, 1, nil, nil, 5, nil, nil], a
+ a.compact!
+ assert_equal [1, 5], a
+ end
+
+ def test_uniq_0
+ x = [1, 1, 4, 2, 5, 4, 5, 1, 2]
+ x.uniq!
+ assert_equal([1, 4, 2, 5], x)
+ end
+
+ def test_empty_0
+ assert_equal true, [].empty?
+ assert_equal false, [1].empty?
+ assert_equal false, [1, 1, 4, 2, 5, 4, 5, 1, 2].empty?
+ end
+
+ def test_sort_0
+ x = ["it", "came", "to", "pass", "that", "..."]
+ x = x.sort.join(" ")
+ assert_equal("... came it pass that to", x)
+ x = [2,5,3,1,7]
+ x.sort!{|a,b| a<=>b} # sort with condition
+ assert_equal([1,2,3,5,7], x)
+ x.sort!{|a,b| b-a} # reverse sort
+ assert_equal([7,5,3,2,1], x)
+ end
+
+ def test_split_0
+ x = "The Book of Mormon"
+ assert_equal(x.reverse, x.split(//).reverse!.join)
+ assert_equal(x.reverse, x.reverse!)
+ assert_equal("g:n:i:r:t:s: :e:t:y:b: :1", "1 byte string".split(//).reverse.join(":"))
+ x = "a b c d"
+ assert_equal(['a', 'b', 'c', 'd'], x.split)
+ assert_equal(['a', 'b', 'c', 'd'], x.split(' '))
+ end
+
+ def test_misc_0
+ assert(defined? "a".chomp, '"a".chomp is not defined')
+ assert_equal(["a", "b", "c"], "abc".scan(/./))
+ assert_equal([["1a"], ["2b"], ["3c"]], "1a2b3c".scan(/(\d.)/))
+ # non-greedy match
+ assert_equal([["a", "12"], ["b", "22"]], "a=12;b=22".scan(/(.*?)=(\d*);?/))
+
+ x = [1]
+ assert_equal('1:1:1:1:1', (x * 5).join(":"))
+ assert_equal('1', (x * 1).join(":"))
+ assert_equal('', (x * 0).join(":"))
+
+ assert_instance_of(Array, (@cls[] * 5))
+ assert_instance_of(Array, (@cls[1] * 5))
+
+ *x = *(1..7).to_a
+ assert_equal(7, x.size)
+ assert_equal([1, 2, 3, 4, 5, 6, 7], x)
+
+ x = [1,2,3]
+ x[1,0] = x
+ assert_equal([1,1,2,3,2,3], x)
+
+ x = [1,2,3]
+ x[-1,0] = x
+ assert_equal([1,2,1,2,3,3], x)
+
+ x = [1,2,3]
+ x.concat(x)
+ assert_equal([1,2,3,1,2,3], x)
+
+ x = [1,2,3]
+ x.clear
+ assert_equal([], x)
+
+ x = [1,2,3]
+ y = x.dup
+ x << 4
+ y << 5
+ assert_equal([1,2,3,4], x)
+ assert_equal([1,2,3,5], y)
+ end
+
+ def test_beg_end_0
+ x = [1, 2, 3, 4, 5]
+
+ assert_equal(1, x.first)
+ assert_equal([1], x.first(1))
+ assert_equal([1, 2, 3], x.first(3))
+ assert_raise_with_message(ArgumentError, /0\.\.1/) {x.first(1, 2)}
+
+ assert_equal(5, x.last)
+ assert_equal([5], x.last(1))
+ assert_equal([3, 4, 5], x.last(3))
+ assert_raise_with_message(ArgumentError, /0\.\.1/) {x.last(1, 2)}
+
+ assert_equal(1, x.shift)
+ assert_equal([2, 3, 4], x.shift(3))
+ assert_equal([5], x)
+ assert_raise_with_message(ArgumentError, /0\.\.1/) {x.first(1, 2)}
+
+ assert_equal([2, 3, 4, 5], x.unshift(2, 3, 4))
+ assert_equal([1, 2, 3, 4, 5], x.unshift(1))
+ assert_equal([1, 2, 3, 4, 5], x)
+
+ assert_equal(5, x.pop)
+ assert_equal([3, 4], x.pop(2))
+ assert_equal([1, 2], x)
+ assert_raise_with_message(ArgumentError, /0\.\.1/) {x.pop(1, 2)}
+
+ assert_equal([1, 2, 3, 4], x.push(3, 4))
+ assert_equal([1, 2, 3, 4, 5], x.push(5))
+ assert_equal([1, 2, 3, 4, 5], x)
+ end
+
+ def test_find_all_0
+ assert_respond_to([], :find_all)
+ assert_respond_to([], :select) # Alias
+ assert_respond_to([], :filter) # Alias
+ assert_equal([], [].find_all{ |obj| obj == "foo"})
+
+ x = ["foo", "bar", "baz", "baz", 1, 2, 3, 3, 4]
+ assert_equal(["baz","baz"], x.find_all{ |obj| obj == "baz" })
+ assert_equal([3,3], x.find_all{ |obj| obj == 3 })
+ end
+
+ def test_fill_0
+ assert_equal([-1, -1, -1, -1, -1, -1], [0, 1, 2, 3, 4, 5].fill(-1))
+ assert_equal([0, 1, 2, -1, -1, -1], [0, 1, 2, 3, 4, 5].fill(-1, 3))
+ assert_equal([0, 1, 2, -1, -1, 5], [0, 1, 2, 3, 4, 5].fill(-1, 3, 2))
+ assert_equal([0, 1, 2, -1, -1, -1, -1, -1], [0, 1, 2, 3, 4, 5].fill(-1, 3, 5))
+ assert_equal([0, 1, -1, -1, 4, 5], [0, 1, 2, 3, 4, 5].fill(-1, 2, 2))
+ assert_equal([0, 1, -1, -1, -1, -1, -1], [0, 1, 2, 3, 4, 5].fill(-1, 2, 5))
+ assert_equal([0, 1, 2, 3, -1, 5], [0, 1, 2, 3, 4, 5].fill(-1, -2, 1))
+ assert_equal([0, 1, 2, 3, -1, -1, -1], [0, 1, 2, 3, 4, 5].fill(-1, -2, 3))
+ assert_equal([0, 1, 2, -1, -1, 5], [0, 1, 2, 3, 4, 5].fill(-1, 3..4))
+ assert_equal([0, 1, 2, -1, 4, 5], [0, 1, 2, 3, 4, 5].fill(-1, 3...4))
+ assert_equal([0, 1, -1, -1, -1, 5], [0, 1, 2, 3, 4, 5].fill(-1, 2..-2))
+ assert_equal([0, 1, -1, -1, 4, 5], [0, 1, 2, 3, 4, 5].fill(-1, 2...-2))
+ assert_equal([10, 11, 12, 13, 14, 15], [0, 1, 2, 3, 4, 5].fill{|i| i+10})
+ assert_equal([0, 1, 2, 13, 14, 15], [0, 1, 2, 3, 4, 5].fill(3){|i| i+10})
+ assert_equal([0, 1, 2, 13, 14, 5], [0, 1, 2, 3, 4, 5].fill(3, 2){|i| i+10})
+ assert_equal([0, 1, 2, 13, 14, 15, 16, 17], [0, 1, 2, 3, 4, 5].fill(3, 5){|i| i+10})
+ assert_equal([0, 1, 2, 13, 14, 5], [0, 1, 2, 3, 4, 5].fill(3..4){|i| i+10})
+ assert_equal([0, 1, 2, 13, 4, 5], [0, 1, 2, 3, 4, 5].fill(3...4){|i| i+10})
+ assert_equal([0, 1, 12, 13, 14, 5], [0, 1, 2, 3, 4, 5].fill(2..-2){|i| i+10})
+ assert_equal([0, 1, 12, 13, 4, 5], [0, 1, 2, 3, 4, 5].fill(2...-2){|i| i+10})
+ assert_equal([0, 1, 2, 13, 14, 15], [0, 1, 2, 3, 4, 5].fill(3..){|i| i+10})
+ assert_equal([0, 1, 2, 13, 14, 15], [0, 1, 2, 3, 4, 5].fill(3...){|i| i+10})
+ end
+
+ # From rubicon
+
+ def test_00_new
+ a = @cls.new()
+ assert_instance_of(@cls, a)
+ assert_equal(0, a.length)
+ assert_nil(a[0])
+ end
+
+ def test_01_square_brackets
+ a = @cls[ 5, 4, 3, 2, 1 ]
+ assert_instance_of(@cls, a)
+ assert_equal(5, a.length)
+ 5.times { |i| assert_equal(5-i, a[i]) }
+ assert_nil(a[6])
+ end
+
+ def test_AND # '&'
+ assert_equal(@cls[1, 3], @cls[ 1, 1, 3, 5 ] & @cls[ 1, 2, 3 ])
+ assert_equal(@cls[], @cls[ 1, 1, 3, 5 ] & @cls[ ])
+ assert_equal(@cls[], @cls[ ] & @cls[ 1, 2, 3 ])
+ assert_equal(@cls[], @cls[ 1, 2, 3 ] & @cls[ 4, 5, 6 ])
+ end
+
+ def test_AND_big_array # '&'
+ assert_equal(@cls[1, 3], @cls[ 1, 1, 3, 5 ]*64 & @cls[ 1, 2, 3 ]*64)
+ assert_equal(@cls[], @cls[ 1, 1, 3, 5 ]*64 & @cls[ ])
+ assert_equal(@cls[], @cls[ ] & @cls[ 1, 2, 3 ]*64)
+ assert_equal(@cls[], @cls[ 1, 2, 3 ]*64 & @cls[ 4, 5, 6 ]*64)
+ end
+
+ def test_intersection
+ assert_equal(@cls[1, 2], @cls[1, 2, 3].intersection(@cls[1, 2]))
+ assert_equal(@cls[ ], @cls[1].intersection(@cls[ ]))
+ assert_equal(@cls[ ], @cls[ ].intersection(@cls[1]))
+ assert_equal(@cls[1], @cls[1, 2, 3].intersection(@cls[1, 2], @cls[1]))
+ assert_equal(@cls[ ], @cls[1, 2, 3].intersection(@cls[1, 2], @cls[3]))
+ assert_equal(@cls[ ], @cls[1, 2, 3].intersection(@cls[4, 5, 6]))
+ end
+
+ def test_intersection_big_array
+ assert_equal(@cls[1, 2], (@cls[1, 2, 3] * 64).intersection(@cls[1, 2] * 64))
+ assert_equal(@cls[ ], (@cls[1] * 64).intersection(@cls[ ]))
+ assert_equal(@cls[ ], @cls[ ].intersection(@cls[1] * 64))
+ assert_equal(@cls[1], (@cls[1, 2, 3] * 64).intersection((@cls[1, 2] * 64), (@cls[1] * 64)))
+ assert_equal(@cls[ ], (@cls[1, 2, 3] * 64).intersection(@cls[4, 5, 6] * 64))
+ end
+
+ def test_MUL # '*'
+ assert_equal(@cls[], @cls[]*3)
+ assert_equal(@cls[1, 1, 1], @cls[1]*3)
+ assert_equal(@cls[1, 2, 1, 2, 1, 2], @cls[1, 2]*3)
+ assert_equal(@cls[], @cls[1, 2, 3] * 0)
+ assert_raise(ArgumentError) { @cls[1, 2]*(-3) }
+
+ assert_equal('1-2-3-4-5', @cls[1, 2, 3, 4, 5] * '-')
+ assert_equal('12345', @cls[1, 2, 3, 4, 5] * '')
+
+ end
+
+ def test_PLUS # '+'
+ assert_equal(@cls[], @cls[] + @cls[])
+ assert_equal(@cls[1], @cls[1] + @cls[])
+ assert_equal(@cls[1], @cls[] + @cls[1])
+ assert_equal(@cls[1, 1], @cls[1] + @cls[1])
+ assert_equal(@cls['cat', 'dog', 1, 2, 3], %w(cat dog) + (1..3).to_a)
+ end
+
+ def test_MINUS # '-'
+ assert_equal(@cls[], @cls[1] - @cls[1])
+ assert_equal(@cls[1], @cls[1, 2, 3, 4, 5] - @cls[2, 3, 4, 5])
+ assert_equal(@cls[1, 1, 1, 1], @cls[1, 2, 1, 3, 1, 4, 1, 5] - @cls[2, 3, 4, 5])
+ assert_equal(@cls[1, 1], @cls[1, 2, 1] - @cls[2])
+ assert_equal(@cls[1, 2, 3], @cls[1, 2, 3] - @cls[4, 5, 6])
+ end
+
+ def test_MINUS_big_array # '-'
+ assert_equal(@cls[1]*64, @cls[1, 2, 3, 4, 5]*64 - @cls[2, 3, 4, 5]*64)
+ assert_equal(@cls[1, 1, 1, 1]*64, @cls[1, 2, 1, 3, 1, 4, 1, 5]*64 - @cls[2, 3, 4, 5]*64)
+ a = @cls[]
+ 1000.times { a << 1 }
+ assert_equal(1000, a.length)
+ assert_equal(@cls[1] * 1000, a - @cls[2])
+ end
+
+ def test_difference
+ assert_equal(@cls[], @cls[1].difference(@cls[1]))
+ assert_equal(@cls[1], @cls[1, 2, 3, 4, 5].difference(@cls[2, 3, 4, 5]))
+ assert_equal(@cls[1, 1], @cls[1, 2, 1].difference(@cls[2]))
+ assert_equal(@cls[1, 1, 1, 1], @cls[1, 2, 1, 3, 1, 4, 1, 5].difference(@cls[2, 3, 4, 5]))
+ assert_equal(@cls[], @cls[1, 2, 3, 4].difference(@cls[1], @cls[2], @cls[3], @cls[4]))
+ a = [1]
+ assert_equal(@cls[1], a.difference(@cls[2], @cls[2]))
+ assert_equal(@cls[], a.difference(@cls[1]))
+ assert_equal(@cls[1], a)
+ end
+
+ def test_difference_big_array
+ assert_equal(@cls[1]*64, (@cls[1, 2, 3, 4, 5] * 64).difference(@cls[2, 3, 4] * 64, @cls[3, 5] * 64))
+ assert_equal(@cls[1, 1, 1, 1]*64, (@cls[1, 2, 1, 3, 1, 4, 1, 5] * 64).difference(@cls[2, 3, 4, 5] * 64))
+ a = @cls[1] * 1000
+ assert_equal(@cls[1] * 1000, a.difference(@cls[2], @cls[2]))
+ assert_equal(@cls[], a.difference(@cls[1]))
+ assert_equal(@cls[1] * 1000, a)
+ end
+
+ def test_LSHIFT # '<<'
+ a = @cls[]
+ a << 1
+ assert_equal(@cls[1], a)
+ a << 2 << 3
+ assert_equal(@cls[1, 2, 3], a)
+ a << nil << 'cat'
+ assert_equal(@cls[1, 2, 3, nil, 'cat'], a)
+ a << a
+ assert_equal(@cls[1, 2, 3, nil, 'cat', a], a)
+ end
+
+ def test_CMP # '<=>'
+ assert_equal(0, @cls[] <=> @cls[])
+ assert_equal(0, @cls[1] <=> @cls[1])
+ assert_equal(0, @cls[1, 2, 3, 'cat'] <=> @cls[1, 2, 3, 'cat'])
+ assert_equal(-1, @cls[] <=> @cls[1])
+ assert_equal(1, @cls[1] <=> @cls[])
+ assert_equal(-1, @cls[1, 2, 3] <=> @cls[1, 2, 3, 'cat'])
+ assert_equal(1, @cls[1, 2, 3, 'cat'] <=> @cls[1, 2, 3])
+ assert_equal(-1, @cls[1, 2, 3, 'cat'] <=> @cls[1, 2, 3, 'dog'])
+ assert_equal(1, @cls[1, 2, 3, 'dog'] <=> @cls[1, 2, 3, 'cat'])
+ end
+
+ def test_EQUAL # '=='
+ assert_operator(@cls[], :==, @cls[])
+ assert_operator(@cls[1], :==, @cls[1])
+ assert_operator(@cls[1, 1, 2, 2], :==, @cls[1, 1, 2, 2])
+ assert_operator(@cls[1.0, 1.0, 2.0, 2.0], :==, @cls[1, 1, 2, 2])
+ end
+
+ def test_VERY_EQUAL # '==='
+ assert_operator(@cls[], :===, @cls[])
+ assert_operator(@cls[1], :===, @cls[1])
+ assert_operator(@cls[1, 1, 2, 2], :===, @cls[1, 1, 2, 2])
+ assert_operator(@cls[1.0, 1.0, 2.0, 2.0], :===, @cls[1, 1, 2, 2])
+ end
+
+ def test_AREF # '[]'
+ a = @cls[*(1..100).to_a]
+
+ assert_equal(1, a[0])
+ assert_equal(100, a[99])
+ assert_nil(a[100])
+ assert_equal(100, a[-1])
+ assert_equal(99, a[-2])
+ assert_equal(1, a[-100])
+ assert_nil(a[-101])
+ assert_nil(a[-101,0])
+ assert_nil(a[-101,1])
+ assert_nil(a[-101,-1])
+ assert_nil(a[10,-1])
+
+ assert_equal(@cls[1], a[0,1])
+ assert_equal(@cls[100], a[99,1])
+ assert_equal(@cls[], a[100,1])
+ assert_equal(@cls[100], a[99,100])
+ assert_equal(@cls[100], a[-1,1])
+ assert_equal(@cls[99], a[-2,1])
+ assert_equal(@cls[], a[-100,0])
+ assert_equal(@cls[1], a[-100,1])
+
+ assert_equal(@cls[10, 11, 12], a[9, 3])
+ assert_equal(@cls[10, 11, 12], a[-91, 3])
+
+ assert_equal(@cls[1], a[0..0])
+ assert_equal(@cls[100], a[99..99])
+ assert_equal(@cls[], a[100..100])
+ assert_equal(@cls[100], a[99..200])
+ assert_equal(@cls[100], a[-1..-1])
+ assert_equal(@cls[99], a[-2..-2])
+
+ assert_equal(@cls[10, 11, 12], a[9..11])
+ assert_equal(@cls[98, 99, 100], a[97..])
+ assert_equal(@cls[1, 2, 3], a[..2])
+ assert_equal(@cls[1, 2], a[...2])
+ assert_equal(@cls[10, 11, 12], a[-91..-89])
+ assert_equal(@cls[98, 99, 100], a[-3..])
+ assert_equal(@cls[1, 2, 3], a[..-98])
+ assert_equal(@cls[1, 2], a[...-98])
+
+ assert_nil(a[10, -3])
+ assert_equal [], a[10..7]
+
+ assert_raise(TypeError) {a['cat']}
+ end
+
+ def test_ASET # '[]='
+ a = @cls[*(0..99).to_a]
+ assert_equal(0, a[0] = 0)
+ assert_equal(@cls[0] + @cls[*(1..99).to_a], a)
+
+ a = @cls[*(0..99).to_a]
+ assert_equal(0, a[10,10] = 0)
+ assert_equal(@cls[*(0..9).to_a] + @cls[0] + @cls[*(20..99).to_a], a)
+
+ a = @cls[*(0..99).to_a]
+ assert_equal(0, a[-1] = 0)
+ assert_equal(@cls[*(0..98).to_a] + @cls[0], a)
+
+ a = @cls[*(0..99).to_a]
+ assert_equal(0, a[-10, 10] = 0)
+ assert_equal(@cls[*(0..89).to_a] + @cls[0], a)
+
+ a = @cls[*(0..99).to_a]
+ assert_equal(0, a[0,1000] = 0)
+ assert_equal(@cls[0] , a)
+
+ a = @cls[*(0..99).to_a]
+ assert_equal(0, a[10..19] = 0)
+ assert_equal(@cls[*(0..9).to_a] + @cls[0] + @cls[*(20..99).to_a], a)
+
+ b = @cls[*%w( a b c )]
+ a = @cls[*(0..99).to_a]
+ assert_equal(b, a[0,1] = b)
+ assert_equal(b + @cls[*(1..99).to_a], a)
+
+ a = @cls[*(0..99).to_a]
+ assert_equal(b, a[10,10] = b)
+ assert_equal(@cls[*(0..9).to_a] + b + @cls[*(20..99).to_a], a)
+
+ a = @cls[*(0..99).to_a]
+ assert_equal(b, a[-1, 1] = b)
+ assert_equal(@cls[*(0..98).to_a] + b, a)
+
+ a = @cls[*(0..99).to_a]
+ assert_equal(b, a[-10, 10] = b)
+ assert_equal(@cls[*(0..89).to_a] + b, a)
+
+ a = @cls[*(0..99).to_a]
+ assert_equal(b, a[0,1000] = b)
+ assert_equal(b , a)
+
+ a = @cls[*(0..99).to_a]
+ assert_equal(b, a[10..19] = b)
+ assert_equal(@cls[*(0..9).to_a] + b + @cls[*(20..99).to_a], a)
+
+ a = @cls[*(0..99).to_a]
+ assert_equal(nil, a[0,1] = nil)
+ assert_equal(@cls[nil] + @cls[*(1..99).to_a], a)
+
+ a = @cls[*(0..99).to_a]
+ assert_equal(nil, a[10,10] = nil)
+ assert_equal(@cls[*(0..9).to_a] + @cls[nil] + @cls[*(20..99).to_a], a)
+
+ a = @cls[*(0..99).to_a]
+ assert_equal(nil, a[-1, 1] = nil)
+ assert_equal(@cls[*(0..98).to_a] + @cls[nil], a)
+
+ a = @cls[*(0..99).to_a]
+ assert_equal(nil, a[-10, 10] = nil)
+ assert_equal(@cls[*(0..89).to_a] + @cls[nil], a)
+
+ a = @cls[*(0..99).to_a]
+ assert_equal(nil, a[0,1000] = nil)
+ assert_equal(@cls[nil] , a)
+
+ a = @cls[*(0..99).to_a]
+ assert_equal(nil, a[10..19] = nil)
+ assert_equal(@cls[*(0..9).to_a] + @cls[nil] + @cls[*(20..99).to_a], a)
+
+ a = @cls[*(0..99).to_a]
+ assert_equal(nil, a[10..] = nil)
+ assert_equal(@cls[*(0..9).to_a] + @cls[nil], a)
+
+ a = @cls[*(0..99).to_a]
+ assert_equal(nil, a[..10] = nil)
+ assert_equal(@cls[nil] + @cls[*(11..99).to_a], a)
+
+ a = @cls[*(0..99).to_a]
+ assert_equal(nil, a[...10] = nil)
+ assert_equal(@cls[nil] + @cls[*(10..99).to_a], a)
+
+ a = @cls[1, 2, 3]
+ a[1, 0] = a
+ assert_equal([1, 1, 2, 3, 2, 3], a)
+
+ a = @cls[1, 2, 3]
+ a[-1, 0] = a
+ assert_equal([1, 2, 1, 2, 3, 3], a)
+
+ a = @cls[]
+ a[5,0] = [5]
+ assert_equal([nil, nil, nil, nil, nil, 5], a)
+
+ a = @cls[1]
+ a[1,0] = [2]
+ assert_equal([1, 2], a)
+
+ a = @cls[1]
+ a[1,1] = [2]
+ assert_equal([1, 2], a)
+ end
+
+ def test_append
+ a = @cls[1, 2, 3]
+ assert_equal(@cls[1, 2, 3, 4, 5], a.append(4, 5))
+ assert_equal(@cls[1, 2, 3, 4, 5, nil], a.append(nil))
+
+ a.append
+ assert_equal @cls[1, 2, 3, 4, 5, nil], a
+ a.append 6, 7
+ assert_equal @cls[1, 2, 3, 4, 5, nil, 6, 7], a
+ end
+
+ def test_assoc
+ def (a4 = Object.new).to_ary
+ %w( pork porcine )
+ end
+
+ a1 = @cls[*%w( cat feline )]
+ a2 = @cls[*%w( dog canine )]
+ a3 = @cls[*%w( mule asinine )]
+
+ a = @cls[ a1, a2, a3, a4 ]
+
+ assert_equal(a1, a.assoc('cat'))
+ assert_equal(a3, a.assoc('mule'))
+ assert_equal(%w( pork porcine ), a.assoc("pork"))
+ assert_equal(nil, a.assoc('asinine'))
+ assert_equal(nil, a.assoc('wombat'))
+ assert_equal(nil, a.assoc(1..2))
+ end
+
+ def test_at
+ a = @cls[*(0..99).to_a]
+ assert_equal(0, a.at(0))
+ assert_equal(10, a.at(10))
+ assert_equal(99, a.at(99))
+ assert_equal(nil, a.at(100))
+ assert_equal(99, a.at(-1))
+ assert_equal(0, a.at(-100))
+ assert_equal(nil, a.at(-101))
+ assert_raise(TypeError) { a.at('cat') }
+ end
+
+ def test_clear
+ a = @cls[1, 2, 3]
+ b = a.clear
+ assert_equal(@cls[], a)
+ assert_equal(@cls[], b)
+ assert_equal(a.__id__, b.__id__)
+ end
+
+ def test_clone
+ for frozen in [ false, true ]
+ a = @cls[*(0..99).to_a]
+ a.freeze if frozen
+ b = a.clone
+
+ assert_equal(a, b)
+ assert_not_equal(a.__id__, b.__id__)
+ assert_equal(a.frozen?, b.frozen?)
+ end
+ end
+
+ def test_collect
+ a = @cls[ 1, 'cat', 1..1 ]
+ assert_equal([ Integer, String, Range], a.collect {|e| e.class} )
+ assert_equal([ 99, 99, 99], a.collect { 99 } )
+
+ assert_equal([], @cls[].collect { 99 })
+
+ assert_kind_of Enumerator, @cls[1, 2, 3].collect
+
+ assert_raise(ArgumentError) {
+ assert_equal([[1, 2, 3]], [[1, 2, 3]].collect(&->(a, b, c) {[a, b, c]}))
+ }
+ end
+
+ # also update map!
+ def test_collect!
+ a = @cls[ 1, 'cat', 1..1 ]
+ assert_equal([ Integer, String, Range], a.collect! {|e| e.class} )
+ assert_equal([ Integer, String, Range], a)
+
+ a = @cls[ 1, 'cat', 1..1 ]
+ assert_equal([ 99, 99, 99], a.collect! { 99 } )
+ assert_equal([ 99, 99, 99], a)
+
+ a = @cls[ ]
+ assert_equal([], a.collect! { 99 })
+ assert_equal([], a)
+ end
+
+ def test_compact
+ a = @cls[ 1, nil, nil, 2, 3, nil, 4 ]
+ assert_equal(@cls[1, 2, 3, 4], a.compact)
+
+ a = @cls[ nil, 1, nil, 2, 3, nil, 4 ]
+ assert_equal(@cls[1, 2, 3, 4], a.compact)
+
+ a = @cls[ 1, nil, nil, 2, 3, nil, 4, nil ]
+ assert_equal(@cls[1, 2, 3, 4], a.compact)
+
+ a = @cls[ 1, 2, 3, 4 ]
+ assert_equal(@cls[1, 2, 3, 4], a.compact)
+ end
+
+ def test_compact!
+ a = @cls[ 1, nil, nil, 2, 3, nil, 4 ]
+ assert_equal(@cls[1, 2, 3, 4], a.compact!)
+ assert_equal(@cls[1, 2, 3, 4], a)
+
+ a = @cls[ nil, 1, nil, 2, 3, nil, 4 ]
+ assert_equal(@cls[1, 2, 3, 4], a.compact!)
+ assert_equal(@cls[1, 2, 3, 4], a)
+
+ a = @cls[ 1, nil, nil, 2, 3, nil, 4, nil ]
+ assert_equal(@cls[1, 2, 3, 4], a.compact!)
+ assert_equal(@cls[1, 2, 3, 4], a)
+
+ a = @cls[ 1, 2, 3, 4 ]
+ assert_equal(nil, a.compact!)
+ assert_equal(@cls[1, 2, 3, 4], a)
+ end
+
+ def test_concat
+ assert_equal(@cls[1, 2, 3, 4], @cls[1, 2].concat(@cls[3, 4]))
+ assert_equal(@cls[1, 2, 3, 4], @cls[].concat(@cls[1, 2, 3, 4]))
+ assert_equal(@cls[1, 2, 3, 4], @cls[1].concat(@cls[2, 3], [4]))
+ assert_equal(@cls[1, 2, 3, 4], @cls[1, 2, 3, 4].concat(@cls[]))
+ assert_equal(@cls[1, 2, 3, 4], @cls[1, 2, 3, 4].concat())
+ assert_equal(@cls[], @cls[].concat(@cls[]))
+ assert_equal(@cls[@cls[1, 2], @cls[3, 4]], @cls[@cls[1, 2]].concat(@cls[@cls[3, 4]]))
+
+ a = @cls[1, 2, 3]
+ a.concat(a)
+ assert_equal([1, 2, 3, 1, 2, 3], a)
+
+ b = @cls[4, 5]
+ b.concat(b, b)
+ assert_equal([4, 5, 4, 5, 4, 5], b)
+
+ assert_raise(TypeError) { @cls[0].concat(:foo) }
+ assert_raise(FrozenError) { @cls[0].freeze.concat(:foo) }
+
+ a = @cls[nil]
+ def (x = Object.new).to_ary
+ ary = Array.new(2)
+ ary << [] << [] << :ok
+ end
+ EnvUtil.under_gc_stress {a.concat(x)}
+ GC.start
+ assert_equal(:ok, a.last)
+ end
+
+ def test_count
+ a = @cls[1, 2, 3, 1, 2]
+ assert_equal(5, a.count)
+ assert_equal(2, a.count(1))
+ assert_equal(3, a.count {|x| x % 2 == 1 })
+ assert_equal(2, assert_warning(/given block not used/) {a.count(1) {|x| x % 2 == 1 }})
+ assert_raise(ArgumentError) { a.count(0, 1) }
+
+ bug8654 = '[ruby-core:56072]'
+ assert_in_out_err [], <<-EOS, ["0"], [], bug8654
+ a1 = []
+ a2 = Array.new(100) { |i| i }
+ a2.count do |i|
+ p i
+ a2.replace(a1) if i == 0
+ end
+ EOS
+
+ assert_in_out_err [], <<-EOS, ["[]", "0"], [], bug8654
+ ARY = Array.new(100) { |i| i }
+ class Integer
+ alias old_equal ==
+ def == other
+ ARY.replace([]) if self.equal?(0)
+ p ARY
+ self.equal?(other)
+ end
+ end
+ p ARY.count(42)
+ EOS
+ end
+
+ def test_delete
+ a = @cls[*('cab'..'cat').to_a]
+ assert_equal('cap', a.delete('cap'))
+ assert_equal(@cls[*('cab'..'cao').to_a] + @cls[*('caq'..'cat').to_a], a)
+
+ a = @cls[*('cab'..'cat').to_a]
+ assert_equal('cab', a.delete('cab'))
+ assert_equal(@cls[*('cac'..'cat').to_a], a)
+
+ a = @cls[*('cab'..'cat').to_a]
+ assert_equal('cat', a.delete('cat'))
+ assert_equal(@cls[*('cab'..'cas').to_a], a)
+
+ a = @cls[*('cab'..'cat').to_a]
+ assert_equal(nil, a.delete('cup'))
+ assert_equal(@cls[*('cab'..'cat').to_a], a)
+
+ a = @cls[*('cab'..'cat').to_a]
+ assert_equal(99, a.delete('cup') { 99 } )
+ assert_equal(@cls[*('cab'..'cat').to_a], a)
+
+ o = Object.new
+ def o.==(other); true; end
+ o2 = Object.new
+ def o2.==(other); true; end
+ a = @cls[1, o, o2, 2]
+ assert_equal(o2, a.delete(42))
+ assert_equal([1, 2], a)
+ end
+
+ def test_delete_at
+ a = @cls[*(1..5).to_a]
+ assert_equal(3, a.delete_at(2))
+ assert_equal(@cls[1, 2, 4, 5], a)
+
+ a = @cls[*(1..5).to_a]
+ assert_equal(4, a.delete_at(-2))
+ assert_equal(@cls[1, 2, 3, 5], a)
+
+ a = @cls[*(1..5).to_a]
+ assert_equal(nil, a.delete_at(5))
+ assert_equal(@cls[1, 2, 3, 4, 5], a)
+
+ a = @cls[*(1..5).to_a]
+ assert_equal(nil, a.delete_at(-6))
+ assert_equal(@cls[1, 2, 3, 4, 5], a)
+ end
+
+ # also reject!
+ def test_delete_if
+ a = @cls[ 1, 2, 3, 4, 5 ]
+ assert_equal(a, a.delete_if { false })
+ assert_equal(@cls[1, 2, 3, 4, 5], a)
+
+ a = @cls[ 1, 2, 3, 4, 5 ]
+ assert_equal(a, a.delete_if { true })
+ assert_equal(@cls[], a)
+
+ a = @cls[ 1, 2, 3, 4, 5 ]
+ assert_equal(a, a.delete_if { |i| i > 3 })
+ assert_equal(@cls[1, 2, 3], a)
+
+ bug2545 = '[ruby-core:27366]'
+ a = @cls[ 5, 6, 7, 8, 9, 10 ]
+ assert_equal(9, a.delete_if {|i| break i if i > 8; i < 7})
+ assert_equal(@cls[7, 8, 9, 10], a, bug2545)
+
+ assert_raise(FrozenError) do
+ a = @cls[1, 2, 3, 42]
+ a.delete_if do
+ a.freeze
+ true
+ end
+ end
+ assert_equal(@cls[1, 2, 3, 42], a)
+ end
+
+ def test_dup
+ for frozen in [ false, true ]
+ a = @cls[*(0..99).to_a]
+ a.freeze if frozen
+ b = a.dup
+
+ assert_equal(a, b)
+ assert_not_equal(a.__id__, b.__id__)
+ assert_equal(false, b.frozen?)
+ end
+ end
+
+ def test_each
+ a = @cls[*%w( ant bat cat dog )]
+ i = 0
+ a.each { |e|
+ assert_equal(a[i], e)
+ i += 1
+ }
+ assert_equal(4, i)
+
+ a = @cls[]
+ i = 0
+ a.each { |e|
+ assert(false, "Never get here")
+ i += 1
+ }
+ assert_equal(0, i)
+
+ assert_equal(a, a.each {})
+ end
+
+ def test_each_index
+ a = @cls[*%w( ant bat cat dog )]
+ i = 0
+ a.each_index { |ind|
+ assert_equal(i, ind)
+ i += 1
+ }
+ assert_equal(4, i)
+
+ a = @cls[]
+ i = 0
+ a.each_index { |ind|
+ assert(false, "Never get here")
+ i += 1
+ }
+ assert_equal(0, i)
+
+ assert_equal(a, a.each_index {})
+ end
+
+ def test_empty?
+ assert_empty(@cls[])
+ assert_not_empty(@cls[1])
+ end
+
+ def test_eql?
+ assert_send([@cls[], :eql?, @cls[]])
+ assert_send([@cls[1], :eql?, @cls[1]])
+ assert_send([@cls[1, 1, 2, 2], :eql?, @cls[1, 1, 2, 2]])
+ assert_not_send([@cls[1.0, 1.0, 2.0, 2.0], :eql?, @cls[1, 1, 2, 2]])
+ end
+
+ def test_fill
+ assert_equal(@cls[], @cls[].fill(99))
+ assert_equal(@cls[], @cls[].fill(99, 0))
+ assert_equal(@cls[99], @cls[].fill(99, 0, 1))
+ assert_equal(@cls[99], @cls[].fill(99, 0..0))
+
+ assert_equal(@cls[99], @cls[1].fill(99))
+ assert_equal(@cls[99], @cls[1].fill(99, 0))
+ assert_equal(@cls[99], @cls[1].fill(99, 0, 1))
+ assert_equal(@cls[99], @cls[1].fill(99, 0..0))
+
+ assert_equal(@cls[99, 99], @cls[1, 2].fill(99))
+ assert_equal(@cls[99, 99], @cls[1, 2].fill(99, 0))
+ assert_equal(@cls[99, 99], @cls[1, 2].fill(99, nil))
+ assert_equal(@cls[1, 99], @cls[1, 2].fill(99, 1, nil))
+ assert_equal(@cls[99, 2], @cls[1, 2].fill(99, 0, 1))
+ assert_equal(@cls[99, 2], @cls[1, 2].fill(99, 0..0))
+ end
+
+ def test_first
+ assert_equal(3, @cls[3, 4, 5].first)
+ assert_equal(nil, @cls[].first)
+ end
+
+ def test_flatten
+ a1 = @cls[ 1, 2, 3]
+ a2 = @cls[ 5, 6 ]
+ a3 = @cls[ 4, a2 ]
+ a4 = @cls[ a1, a3 ]
+ assert_equal_instance([1, 2, 3, 4, 5, 6], a4.flatten)
+ assert_equal_instance(@cls[ a1, a3], a4)
+
+ a5 = @cls[ a1, @cls[], a3 ]
+ assert_equal_instance([1, 2, 3, 4, 5, 6], a5.flatten)
+ assert_equal_instance([1, 2, 3, 4, [5, 6]], a5.flatten(1))
+ assert_equal_instance([], @cls[].flatten)
+ assert_equal_instance([],
+ @cls[@cls[@cls[@cls[],@cls[]],@cls[@cls[]],@cls[]],@cls[@cls[@cls[]]]].flatten)
+ end
+
+ def test_flatten_wrong_argument
+ assert_raise(TypeError, "[ruby-dev:31197]") { [[]].flatten("") }
+ end
+
+ def test_flatten_level0
+ a8 = @cls[[1, 2], 3]
+ a9 = a8.flatten(0)
+ assert_equal(a8, a9)
+ assert_not_same(a8, a9)
+ end
+
+ def test_flatten_splat
+ bug10748 = '[ruby-core:67637] [Bug #10748]'
+ o = Object.new
+ o.singleton_class.class_eval do
+ define_method(:to_ary) do
+ raise bug10748
+ end
+ end
+ a = @cls[@cls[o]]
+ assert_raise_with_message(RuntimeError, bug10748) {a.flatten}
+ assert_nothing_raised(RuntimeError, bug10748) {a.flatten(1)}
+ end
+
+ def test_flattern_singleton_class
+ bug12738 = '[ruby-dev:49781] [Bug #12738]'
+ a = [[0]]
+ class << a
+ def m; end
+ end
+ assert_raise(NoMethodError, bug12738) { a.flatten.m }
+ end
+
+ def test_flatten_recursive
+ a = []
+ a << a
+ assert_raise(ArgumentError) { a.flatten }
+ b = [1]; c = [2, b]; b << c
+ assert_raise(ArgumentError) { b.flatten }
+
+ assert_equal([1, 2, b], b.flatten(1))
+ assert_equal([1, 2, 1, 2, 1, c], b.flatten(4))
+ end
+
+ def test_flatten!
+ a1 = @cls[ 1, 2, 3]
+ a2 = @cls[ 5, 6 ]
+ a3 = @cls[ 4, a2 ]
+ a4 = @cls[ a1, a3 ]
+ assert_equal(@cls[1, 2, 3, 4, 5, 6], a4.flatten!)
+ assert_equal(@cls[1, 2, 3, 4, 5, 6], a4)
+
+ a5 = @cls[ a1, @cls[], a3 ]
+ assert_equal(@cls[1, 2, 3, 4, 5, 6], a5.flatten!)
+ assert_nil(a5.flatten!(0), '[ruby-core:23382]')
+ assert_equal(@cls[1, 2, 3, 4, 5, 6], a5)
+ end
+
+ def test_flatten_empty!
+ assert_nil(@cls[].flatten!)
+ assert_equal(@cls[],
+ @cls[@cls[@cls[@cls[],@cls[]],@cls[@cls[]],@cls[]],@cls[@cls[@cls[]]]].flatten!)
+ end
+
+ def test_flatten_level0!
+ assert_nil(@cls[].flatten!(0), '[ruby-core:23382]')
+ end
+
+ def test_flatten_splat!
+ bug10748 = '[ruby-core:67637] [Bug #10748]'
+ o = Object.new
+ o.singleton_class.class_eval do
+ define_method(:to_ary) do
+ raise bug10748
+ end
+ end
+ a = @cls[@cls[o]]
+ assert_raise_with_message(RuntimeError, bug10748) {a.flatten!}
+ assert_nothing_raised(RuntimeError, bug10748) {a.flatten!(1)}
+ end
+
+ def test_flattern_singleton_class!
+ bug12738 = '[ruby-dev:49781] [Bug #12738]'
+ a = [[0]]
+ class << a
+ def m; end
+ end
+ assert_nothing_raised(NameError, bug12738) { a.flatten!.m }
+ end
+
+ def test_flatten_with_callcc
+ need_continuation
+ o = Object.new
+ def o.to_ary() callcc {|k| @cont = k; [1,2,3]} end
+ begin
+ assert_equal([10, 20, 1, 2, 3, 30, 1, 2, 3, 40], [10, 20, o, 30, o, 40].flatten)
+ rescue => e
+ else
+ o.instance_eval {@cont}.call
+ end
+ assert_instance_of(RuntimeError, e, '[ruby-dev:34798]')
+ assert_match(/reentered/, e.message, '[ruby-dev:34798]')
+ end
+
+ def test_flatten_respond_to_missing
+ bug11465 = '[ruby-core:70460] [Bug #11465]'
+
+ obj = Class.new do
+ def respond_to_missing?(method, stuff)
+ return false if method == :to_ary
+ super
+ end
+
+ def method_missing(*args)
+ super
+ end
+ end.new
+
+ ex = nil
+ trace = TracePoint.new(:raise) do |tp|
+ ex = tp.raised_exception
+ end
+ trace.enable {[obj].flatten}
+ assert_nil(ex, bug11465)
+ end
+
+ def test_permutation_with_callcc
+ need_continuation
+ n = 1000
+ cont = nil
+ ary = [1,2,3]
+ begin
+ ary.permutation {
+ callcc {|k| cont = k} unless cont
+ }
+ rescue => e
+ end
+ n -= 1
+ cont.call if 0 < n
+ assert_instance_of(RuntimeError, e)
+ assert_match(/reentered/, e.message)
+ end
+
+ def test_product_with_callcc
+ need_continuation
+ n = 1000
+ cont = nil
+ ary = [1,2,3]
+ begin
+ ary.product {
+ callcc {|k| cont = k} unless cont
+ }
+ rescue => e
+ end
+ n -= 1
+ cont.call if 0 < n
+ assert_instance_of(RuntimeError, e)
+ assert_match(/reentered/, e.message)
+ end
+
+ def test_combination_with_callcc
+ need_continuation
+ n = 1000
+ cont = nil
+ ary = [1,2,3]
+ begin
+ ary.combination(2) {
+ callcc {|k| cont = k} unless cont
+ }
+ rescue => e
+ end
+ n -= 1
+ cont.call if 0 < n
+ assert_instance_of(RuntimeError, e)
+ assert_match(/reentered/, e.message)
+ end
+
+ def test_repeated_permutation_with_callcc
+ need_continuation
+ n = 1000
+ cont = nil
+ ary = [1,2,3]
+ begin
+ ary.repeated_permutation(2) {
+ callcc {|k| cont = k} unless cont
+ }
+ rescue => e
+ end
+ n -= 1
+ cont.call if 0 < n
+ assert_instance_of(RuntimeError, e)
+ assert_match(/reentered/, e.message)
+ end
+
+ def test_repeated_combination_with_callcc
+ need_continuation
+ n = 1000
+ cont = nil
+ ary = [1,2,3]
+ begin
+ ary.repeated_combination(2) {
+ callcc {|k| cont = k} unless cont
+ }
+ rescue => e
+ end
+ n -= 1
+ cont.call if 0 < n
+ assert_instance_of(RuntimeError, e)
+ assert_match(/reentered/, e.message)
+ end
+
+ def test_hash
+ a1 = @cls[ 'cat', 'dog' ]
+ a2 = @cls[ 'cat', 'dog' ]
+ a3 = @cls[ 'dog', 'cat' ]
+ assert_equal(a1.hash, a2.hash)
+ assert_not_equal(a1.hash, a3.hash)
+ bug9231 = '[ruby-core:58993] [Bug #9231]'
+ assert_not_equal(false.hash, @cls[].hash, bug9231)
+ end
+
+ def test_include?
+ a = @cls[ 'cat', 99, /a/, @cls[ 1, 2, 3] ]
+ assert_include(a, 'cat')
+ assert_include(a, 99)
+ assert_include(a, /a/)
+ assert_include(a, [1,2,3])
+ assert_not_include(a, 'ca')
+ assert_not_include(a, [1,2])
+ end
+
+ def test_monkey_patch_include?
+ assert_separately([], "#{<<~"begin;"}\n#{<<~'end;'}", timeout: 30)
+ begin;
+ $-w = false
+ class Array
+ alias :old_include? :include?
+ def include? x
+ return true if x == :always
+ old_include?(x)
+ end
+ end
+ def test
+ a, c, always = :a, :c, :always
+ [
+ [:a, :b].include?(a),
+ [:a, :b].include?(c),
+ [:a, :b].include?(always),
+ ]
+ end
+ v = test
+ class Array
+ alias :include? :old_include?
+ end
+ assert_equal [true, false, true], v
+ end;
+ end
+
+ def test_intersect?
+ a = @cls[ 1, 2, 3]
+ assert_send([a, :intersect?, [3]])
+ assert_not_send([a, :intersect?, [4]])
+ assert_not_send([a, :intersect?, []])
+ end
+
+ def test_intersect_big_array
+ assert_send([@cls[ 1, 4, 5 ]*64, :intersect?, @cls[ 1, 2, 3 ]*64])
+ assert_not_send([@cls[ 1, 2, 3 ]*64, :intersect?, @cls[ 4, 5, 6 ]*64])
+ assert_not_send([@cls[], :intersect?, @cls[ 1, 2, 3 ]*64])
+ end
+
+ def test_index
+ a = @cls[ 'cat', 99, /a/, 99, @cls[ 1, 2, 3] ]
+ assert_equal(0, a.index('cat'))
+ assert_equal(1, a.index(99))
+ assert_equal(4, a.index([1,2,3]))
+ assert_nil(a.index('ca'))
+ assert_nil(a.index([1,2]))
+
+ assert_equal(1, assert_warn(/given block not used/) {a.index(99) {|x| x == 'cat' }})
+ end
+
+ def test_values_at
+ a = @cls[*('a'..'j').to_a]
+ assert_equal(@cls['a', 'c', 'e'], a.values_at(0, 2, 4))
+ assert_equal(@cls['j', 'h', 'f'], a.values_at(-1, -3, -5))
+ assert_equal(@cls['h', nil, 'a'], a.values_at(-3, 99, 0))
+ end
+
+ def test_join
+ assert_deprecated_warning {$, = ""}
+ a = @cls[]
+ assert_equal("", assert_deprecated_warn(/non-nil value/) {a.join})
+ assert_equal("", a.join(','))
+ assert_equal(Encoding::US_ASCII, assert_deprecated_warn(/non-nil value/) {a.join}.encoding)
+
+ assert_deprecated_warning {$, = ""}
+ a = @cls[1, 2]
+ assert_equal("12", assert_deprecated_warn(/non-nil value/) {a.join})
+ assert_equal("12", assert_deprecated_warn(/non-nil value/) {a.join(nil)})
+ assert_equal("1,2", a.join(','))
+
+ assert_deprecated_warning {$, = ""}
+ a = @cls[1, 2, 3]
+ assert_equal("123", assert_deprecated_warn(/non-nil value/) {a.join})
+ assert_equal("123", assert_deprecated_warn(/non-nil value/) {a.join(nil)})
+ assert_equal("1,2,3", a.join(','))
+
+ assert_deprecated_warning {$, = ":"}
+ a = @cls[1, 2, 3]
+ assert_equal("1:2:3", assert_deprecated_warn(/non-nil value/) {a.join})
+ assert_equal("1:2:3", assert_deprecated_warn(/non-nil value/) {a.join(nil)})
+ assert_equal("1,2,3", a.join(','))
+
+ assert_deprecated_warning {$, = ""}
+
+ e = ''.force_encoding('EUC-JP')
+ u = ''.force_encoding('UTF-8')
+ assert_equal(Encoding::US_ASCII, assert_deprecated_warn(/non-nil value/) {[[]].join}.encoding)
+ assert_equal(Encoding::US_ASCII, assert_deprecated_warn(/non-nil value/) {[1, [u]].join}.encoding)
+ assert_equal(Encoding::UTF_8, assert_deprecated_warn(/non-nil value/) {[u, [e]].join}.encoding)
+ assert_equal(Encoding::UTF_8, assert_deprecated_warn(/non-nil value/) {[u, [1]].join}.encoding)
+ assert_equal(Encoding::UTF_8, assert_deprecated_warn(/non-nil value/) {[Struct.new(:to_str).new(u)].join}.encoding)
+ bug5379 = '[ruby-core:39776]'
+ assert_equal(Encoding::US_ASCII, assert_deprecated_warn(/non-nil value/) {[[], u, nil].join}.encoding, bug5379)
+ assert_equal(Encoding::UTF_8, assert_deprecated_warn(/non-nil value/) {[[], "\u3042", nil].join}.encoding, bug5379)
+ ensure
+ $, = nil
+ end
+
+ def test_last
+ assert_equal(nil, @cls[].last)
+ assert_equal(1, @cls[1].last)
+ assert_equal(99, @cls[*(3..99).to_a].last)
+ end
+
+ def test_length
+ assert_equal(0, @cls[].length)
+ assert_equal(1, @cls[1].length)
+ assert_equal(2, @cls[1, nil].length)
+ assert_equal(2, @cls[nil, 1].length)
+ assert_equal(234, @cls[*(0..233).to_a].length)
+ end
+
+ # also update collect!
+ def test_map!
+ a = @cls[ 1, 'cat', 1..1 ]
+ assert_equal(@cls[ Integer, String, Range], a.map! {|e| e.class} )
+ assert_equal(@cls[ Integer, String, Range], a)
+
+ a = @cls[ 1, 'cat', 1..1 ]
+ assert_equal(@cls[ 99, 99, 99], a.map! { 99 } )
+ assert_equal(@cls[ 99, 99, 99], a)
+
+ a = @cls[ ]
+ assert_equal(@cls[], a.map! { 99 })
+ assert_equal(@cls[], a)
+ end
+
+ def test_pack_format_mutation
+ ary = [Object.new]
+ fmt = "c" * 0x20000
+ class << ary[0]; self end.send(:define_method, :to_int) {
+ fmt.replace ""
+ 1
+ }
+ e = assert_raise(RuntimeError) { ary.pack(fmt) }
+ assert_equal "format string modified", e.message
+ end
+
+ def test_pack
+ a = @cls[*%w( cat wombat x yy)]
+ assert_equal("catwomx yy ", a.pack("A3A3A3A3"))
+ assert_equal("cat", a.pack("A*"))
+ assert_equal("cwx yy ", a.pack("A3@1A3@2A3A3"))
+ assert_equal("catwomx\000\000yy\000", a.pack("a3a3a3a3"))
+ assert_equal("cat", a.pack("a*"))
+ assert_equal("ca", a.pack("a2"))
+ assert_equal("cat\000\000", a.pack("a5"))
+
+ assert_equal("\x61", @cls["01100001"].pack("B8"))
+ assert_equal("\x61", @cls["01100001"].pack("B*"))
+ assert_equal("\x61", @cls["0110000100110111"].pack("B8"))
+ assert_equal("\x61\x37", @cls["0110000100110111"].pack("B16"))
+ assert_equal("\x61\x37", @cls["01100001", "00110111"].pack("B8B8"))
+ assert_equal("\x60", @cls["01100001"].pack("B4"))
+ assert_equal("\x40", @cls["01100001"].pack("B2"))
+
+ assert_equal("\x86", @cls["01100001"].pack("b8"))
+ assert_equal("\x86", @cls["01100001"].pack("b*"))
+ assert_equal("\x86", @cls["0110000100110111"].pack("b8"))
+ assert_equal("\x86\xec", @cls["0110000100110111"].pack("b16"))
+ assert_equal("\x86\xec", @cls["01100001", "00110111"].pack("b8b8"))
+ assert_equal("\x06", @cls["01100001"].pack("b4"))
+ assert_equal("\x02", @cls["01100001"].pack("b2"))
+
+ assert_equal("ABC", @cls[ 65, 66, 67 ].pack("C3"))
+ assert_equal("\377BC", @cls[ -1, 66, 67 ].pack("C*"))
+ assert_equal("ABC", @cls[ 65, 66, 67 ].pack("c3"))
+ assert_equal("\377BC", @cls[ -1, 66, 67 ].pack("c*"))
+
+
+ assert_equal("AB\n\x10", @cls["4142", "0a", "12"].pack("H4H2H1"))
+ assert_equal("AB\n\x02", @cls["1424", "a0", "21"].pack("h4h2h1"))
+
+ assert_equal("abc=02def=\ncat=\n=01=\n",
+ @cls["abc\002def", "cat", "\001"].pack("M9M3M4"))
+
+ assert_equal("aGVsbG8K\n", @cls["hello\n"].pack("m"))
+ assert_equal(",:&5L;&\\*:&5L;&\\*\n", @cls["hello\nhello\n"].pack("u"))
+
+ assert_equal("\u{a9 42 2260}", @cls[0xa9, 0x42, 0x2260].pack("U*"))
+
+
+ format = "c2x5CCxsdils_l_a6";
+ # Need the expression in here to force ary[5] to be numeric. This avoids
+ # test2 failing because ary2 goes str->numeric->str and ary does not.
+ ary = [1, -100, 127, 128, 32767, 987.654321098/100.0,
+ 12345, 123456, -32767, -123456, "abcdef"]
+ x = ary.pack(format)
+ ary2 = x.unpack(format)
+
+ assert_equal(ary.length, ary2.length)
+ assert_equal(ary.join(':'), ary2.join(':'))
+ assert_not_nil(x =~ /def/)
+
+ # more comprehensive tests are in test_pack.rb
+ end
+
+ def test_pack_with_buffer
+ n = [ 65, 66, 67 ]
+ str = "a" * 100
+ assert_equal("aaaABC", n.pack("@3ccc", buffer: str.dup), "[Bug #19116]")
+ end
+
+ def test_pop
+ a = @cls[ 'cat', 'dog' ]
+ assert_equal('dog', a.pop)
+ assert_equal(@cls['cat'], a)
+ assert_equal('cat', a.pop)
+ assert_equal(@cls[], a)
+ assert_nil(a.pop)
+ assert_equal(@cls[], a)
+ end
+
+ def test_prepend
+ a = @cls[]
+ assert_equal(@cls['cat'], a.prepend('cat'))
+ assert_equal(@cls['dog', 'cat'], a.prepend('dog'))
+ assert_equal(@cls[nil, 'dog', 'cat'], a.prepend(nil))
+ assert_equal(@cls[@cls[1,2], nil, 'dog', 'cat'], a.prepend(@cls[1, 2]))
+ end
+
+ def test_tolerant_to_redefinition
+ *code = __FILE__, __LINE__+1, "#{<<-"{#"}\n#{<<-'};'}"
+ {#
+ module M
+ def <<(a)
+ super(a * 2)
+ end
+ end
+ class Array; prepend M; end
+ ary = [*1..10]
+ mapped = ary.map {|i| i}
+ selected = ary.select {true}
+ module M
+ remove_method :<<
+ end
+ assert_equal(ary, mapped)
+ assert_equal(ary, selected)
+ };
+ assert_separately(%w[--disable-yjit], *code)
+ assert_separately(%w[--enable-yjit], *code)
+ end
+
+ def test_push
+ a = @cls[1, 2, 3]
+ assert_equal(@cls[1, 2, 3, 4, 5], a.push(4, 5))
+ assert_equal(@cls[1, 2, 3, 4, 5, nil], a.push(nil))
+ a.push
+ assert_equal @cls[1, 2, 3, 4, 5, nil], a
+ a.push 6, 7
+ assert_equal @cls[1, 2, 3, 4, 5, nil, 6, 7], a
+ end
+
+ def test_rassoc
+ def (a4 = Object.new).to_ary
+ %w( pork porcine )
+ end
+ a1 = @cls[*%w( cat feline )]
+ a2 = @cls[*%w( dog canine )]
+ a3 = @cls[*%w( mule asinine )]
+ a = @cls[ a1, a2, a3, a4 ]
+
+ assert_equal(a1, a.rassoc('feline'))
+ assert_equal(a3, a.rassoc('asinine'))
+ assert_equal(%w( pork porcine ), a.rassoc("porcine"))
+ assert_equal(nil, a.rassoc('dog'))
+ assert_equal(nil, a.rassoc('mule'))
+ assert_equal(nil, a.rassoc(1..2))
+ end
+
+ # also delete_if
+ def test_reject!
+ a = @cls[ 1, 2, 3, 4, 5 ]
+ assert_equal(nil, a.reject! { false })
+ assert_equal(@cls[1, 2, 3, 4, 5], a)
+
+ a = @cls[ 1, 2, 3, 4, 5 ]
+ assert_equal(a, a.reject! { true })
+ assert_equal(@cls[], a)
+
+ a = @cls[ 1, 2, 3, 4, 5 ]
+ assert_equal(a, a.reject! { |i| i > 3 })
+ assert_equal(@cls[1, 2, 3], a)
+
+ bug2545 = '[ruby-core:27366]'
+ a = @cls[ 5, 6, 7, 8, 9, 10 ]
+ assert_equal(9, a.reject! {|i| break i if i > 8; i < 7})
+ assert_equal(@cls[7, 8, 9, 10], a, bug2545)
+
+ assert_raise(FrozenError) do
+ a = @cls[1, 2, 3, 42]
+ a.reject! do
+ a.freeze
+ true
+ end
+ end
+ assert_equal(@cls[1, 2, 3, 42], a)
+ end
+
+ def test_shared_array_reject!
+ c = []
+ b = [1, 2, 3, 4]
+ 3.times do
+ a = b.dup
+ c << a.dup
+
+ begin
+ a.reject! do |x|
+ case x
+ when 2 then true
+ when 3 then raise StandardError, 'Oops'
+ else false
+ end
+ end
+ rescue StandardError
+ end
+
+ c << a.dup
+ end
+
+ bug90781 = '[ruby-core:90781]'
+ assert_equal [[1, 2, 3, 4],
+ [1, 3, 4],
+ [1, 2, 3, 4],
+ [1, 3, 4],
+ [1, 2, 3, 4],
+ [1, 3, 4]], c, bug90781
+ end
+
+ def test_iseq_shared_array_reject!
+ c = []
+ 3.times do
+ a = [1, 2, 3, 4]
+ c << a.dup
+
+ begin
+ a.reject! do |x|
+ case x
+ when 2 then true
+ when 3 then raise StandardError, 'Oops'
+ else false
+ end
+ end
+ rescue StandardError
+ end
+
+ c << a.dup
+ end
+
+ bug90781 = '[ruby-core:90781]'
+ assert_equal [[1, 2, 3, 4],
+ [1, 3, 4],
+ [1, 2, 3, 4],
+ [1, 3, 4],
+ [1, 2, 3, 4],
+ [1, 3, 4]], c, bug90781
+ end
+
+ def test_replace
+ a = @cls[ 1, 2, 3]
+ a_id = a.__id__
+ assert_equal(@cls[4, 5, 6], a.replace(@cls[4, 5, 6]))
+ assert_equal(@cls[4, 5, 6], a)
+ assert_equal(a_id, a.__id__)
+ assert_equal(@cls[], a.replace(@cls[]))
+
+ fa = a.dup.freeze
+ assert_nothing_raised(RuntimeError) { a.replace(a) }
+ assert_raise(FrozenError) { fa.replace(fa) }
+ assert_raise(ArgumentError) { fa.replace() }
+ assert_raise(TypeError) { a.replace(42) }
+ assert_raise(FrozenError) { fa.replace(42) }
+ end
+
+ def test_replace_wb_variable_width_alloc
+ small_embed = []
+ 4.times { GC.start } # age small_embed
+ large_embed = [1, 2, 3, 4, 5, Array.new] # new young object
+ small_embed.replace(large_embed) # adds old to young reference
+ GC.verify_internal_consistency
+ end
+
+ def test_reverse
+ a = @cls[*%w( dog cat bee ant )]
+ assert_equal(@cls[*%w(ant bee cat dog)], a.reverse)
+ assert_equal(@cls[*%w(dog cat bee ant)], a)
+ assert_equal(@cls[], @cls[].reverse)
+ end
+
+ def test_reverse!
+ a = @cls[*%w( dog cat bee ant )]
+ assert_equal(@cls[*%w(ant bee cat dog)], a.reverse!)
+ assert_equal(@cls[*%w(ant bee cat dog)], a)
+ assert_equal @cls[], @cls[].reverse!
+ end
+
+ def test_reverse_each
+ a = @cls[*%w( dog cat bee ant )]
+ i = a.length
+ a.reverse_each { |e|
+ i -= 1
+ assert_equal(a[i], e)
+ }
+ assert_equal(0, i)
+
+ a = @cls[]
+ i = 0
+ a.reverse_each { |e|
+ i += 1
+ assert(false, "Never get here")
+ }
+ assert_equal(0, i)
+ end
+
+ def test_rindex
+ a = @cls[ 'cat', 99, /a/, 99, [ 1, 2, 3] ]
+ assert_equal(0, a.rindex('cat'))
+ assert_equal(3, a.rindex(99))
+ assert_equal(4, a.rindex([1,2,3]))
+ assert_nil(a.rindex('ca'))
+ assert_nil(a.rindex([1,2]))
+
+ assert_equal(3, assert_warning(/given block not used/) {a.rindex(99) {|x| x == [1,2,3] }})
+
+ bug15951 = "[Bug #15951]"
+ o2 = Object.new
+ def o2.==(other)
+ other.replace([]) if Array === other
+ false
+ end
+ a = Array.new(10)
+ a.fill(o2)
+ assert_nil(a.rindex(a), bug15951)
+ end
+
+ def test_shift
+ a = @cls[ 'cat', 'dog' ]
+ assert_equal('cat', a.shift)
+ assert_equal(@cls['dog'], a)
+ assert_equal('dog', a.shift)
+ assert_equal(@cls[], a)
+ assert_nil(a.shift)
+ assert_equal(@cls[], a)
+ end
+
+ def test_size
+ assert_equal(0, @cls[].size)
+ assert_equal(1, @cls[1].size)
+ assert_equal(100, @cls[*(0..99).to_a].size)
+ end
+
+ def test_slice
+ a = @cls[*(1..100).to_a]
+
+ assert_equal(1, a.slice(0))
+ assert_equal(100, a.slice(99))
+ assert_nil(a.slice(100))
+ assert_equal(100, a.slice(-1))
+ assert_equal(99, a.slice(-2))
+ assert_equal(1, a.slice(-100))
+ assert_nil(a.slice(-101))
+
+ assert_equal_instance([1], a.slice(0,1))
+ assert_equal_instance([100], a.slice(99,1))
+ assert_equal_instance([], a.slice(100,1))
+ assert_equal_instance([100], a.slice(99,100))
+ assert_equal_instance([100], a.slice(-1,1))
+ assert_equal_instance([99], a.slice(-2,1))
+
+ assert_equal_instance([10, 11, 12], a.slice(9, 3))
+ assert_equal_instance([10, 11, 12], a.slice(-91, 3))
+
+ assert_nil(a.slice(-101, 2))
+
+ assert_equal_instance([1], a.slice(0..0))
+ assert_equal_instance([100], a.slice(99..99))
+ assert_equal_instance([], a.slice(100..100))
+ assert_equal_instance([100], a.slice(99..200))
+ assert_equal_instance([100], a.slice(-1..-1))
+ assert_equal_instance([99], a.slice(-2..-2))
+
+ assert_equal_instance([10, 11, 12], a.slice(9..11))
+ assert_equal_instance([98, 99, 100], a.slice(97..))
+ assert_equal_instance([10, 11, 12], a.slice(-91..-89))
+ assert_equal_instance([10, 11, 12], a.slice(-91..-89))
+
+ assert_equal_instance([5, 8, 11], a.slice((4..12)%3))
+ assert_equal_instance([95, 97, 99], a.slice((94..)%2))
+
+ # [0] [1] [2] [3] [4] [5] [6] [7]
+ # ary = [ 1 2 3 4 5 6 7 8 ... ]
+ # (0) (1) (2) <- (..7) % 3
+ # (2) (1) (0) <- (7..) % -3
+ assert_equal_instance([1, 4, 7], a.slice((..7)%3))
+ assert_equal_instance([8, 5, 2], a.slice((7..)% -3))
+
+ # [-98] [-97] [-96] [-95] [-94] [-93] [-92] [-91] [-90]
+ # ary = [ ... 3 4 5 6 7 8 9 10 11 ... ]
+ # (0) (1) (2) <- (-98..-90) % 3
+ # (2) (1) (0) <- (-90..-98) % -3
+ assert_equal_instance([3, 6, 9], a.slice((-98..-90)%3))
+ assert_equal_instance([11, 8, 5], a.slice((-90..-98)% -3))
+
+ # [ 48] [ 49] [ 50] [ 51] [ 52] [ 53]
+ # [-52] [-51] [-50] [-49] [-48] [-47]
+ # ary = [ ... 49 50 51 52 53 54 ... ]
+ # (0) (1) (2) <- (48..-47) % 2
+ # (2) (1) (0) <- (-47..48) % -2
+ assert_equal_instance([49, 51, 53], a.slice((48..-47)%2))
+ assert_equal_instance([54, 52, 50], a.slice((-47..48)% -2))
+
+ idx = ((3..90) % 2).to_a
+ assert_equal_instance(a.values_at(*idx), a.slice((3..90)%2))
+ idx = 90.step(3, -2).to_a
+ assert_equal_instance(a.values_at(*idx), a.slice((90 .. 3)% -2))
+
+ a = [0, 1, 2, 3, 4, 5]
+ assert_equal([2, 1, 0], a.slice((2..).step(-1)))
+ assert_equal([2, 0], a.slice((2..).step(-2)))
+ assert_equal([2], a.slice((2..).step(-3)))
+ assert_equal([2], a.slice((2..).step(-4)))
+
+ assert_equal([3, 2, 1, 0], a.slice((-3..).step(-1)))
+ assert_equal([3, 1], a.slice((-3..).step(-2)))
+ assert_equal([3, 0], a.slice((-3..).step(-3)))
+ assert_equal([3], a.slice((-3..).step(-4)))
+ assert_equal([3], a.slice((-3..).step(-5)))
+
+ assert_equal([5, 4, 3, 2, 1, 0], a.slice((..0).step(-1)))
+ assert_equal([5, 3, 1], a.slice((..0).step(-2)))
+ assert_equal([5, 2], a.slice((..0).step(-3)))
+ assert_equal([5, 1], a.slice((..0).step(-4)))
+ assert_equal([5, 0], a.slice((..0).step(-5)))
+ assert_equal([5], a.slice((..0).step(-6)))
+ assert_equal([5], a.slice((..0).step(-7)))
+
+ assert_equal([5, 4, 3, 2, 1], a.slice((...0).step(-1)))
+ assert_equal([5, 3, 1], a.slice((...0).step(-2)))
+ assert_equal([5, 2], a.slice((...0).step(-3)))
+ assert_equal([5, 1], a.slice((...0).step(-4)))
+ assert_equal([5], a.slice((...0).step(-5)))
+ assert_equal([5], a.slice((...0).step(-6)))
+
+ assert_equal([5, 4, 3, 2], a.slice((...1).step(-1)))
+ assert_equal([5, 3], a.slice((...1).step(-2)))
+ assert_equal([5, 2], a.slice((...1).step(-3)))
+ assert_equal([5], a.slice((...1).step(-4)))
+ assert_equal([5], a.slice((...1).step(-5)))
+
+ assert_equal([5, 4, 3, 2, 1], a.slice((..-5).step(-1)))
+ assert_equal([5, 3, 1], a.slice((..-5).step(-2)))
+ assert_equal([5, 2], a.slice((..-5).step(-3)))
+ assert_equal([5, 1], a.slice((..-5).step(-4)))
+ assert_equal([5], a.slice((..-5).step(-5)))
+ assert_equal([5], a.slice((..-5).step(-6)))
+
+ assert_equal([5, 4, 3, 2], a.slice((...-5).step(-1)))
+ assert_equal([5, 3], a.slice((...-5).step(-2)))
+ assert_equal([5, 2], a.slice((...-5).step(-3)))
+ assert_equal([5], a.slice((...-5).step(-4)))
+ assert_equal([5], a.slice((...-5).step(-5)))
+
+ assert_equal([4, 3, 2, 1], a.slice((4..1).step(-1)))
+ assert_equal([4, 2], a.slice((4..1).step(-2)))
+ assert_equal([4, 1], a.slice((4..1).step(-3)))
+ assert_equal([4], a.slice((4..1).step(-4)))
+ assert_equal([4], a.slice((4..1).step(-5)))
+
+ assert_equal([4, 3, 2], a.slice((4...1).step(-1)))
+ assert_equal([4, 2], a.slice((4...1).step(-2)))
+ assert_equal([4], a.slice((4...1).step(-3)))
+ assert_equal([4], a.slice((4...1).step(-4)))
+
+ assert_equal([4, 3, 2, 1], a.slice((-2..1).step(-1)))
+ assert_equal([4, 2], a.slice((-2..1).step(-2)))
+ assert_equal([4, 1], a.slice((-2..1).step(-3)))
+ assert_equal([4], a.slice((-2..1).step(-4)))
+ assert_equal([4], a.slice((-2..1).step(-5)))
+
+ assert_equal([4, 3, 2], a.slice((-2...1).step(-1)))
+ assert_equal([4, 2], a.slice((-2...1).step(-2)))
+ assert_equal([4], a.slice((-2...1).step(-3)))
+ assert_equal([4], a.slice((-2...1).step(-4)))
+
+ assert_equal([4, 3, 2, 1], a.slice((4..-5).step(-1)))
+ assert_equal([4, 2], a.slice((4..-5).step(-2)))
+ assert_equal([4, 1], a.slice((4..-5).step(-3)))
+ assert_equal([4], a.slice((4..-5).step(-4)))
+ assert_equal([4], a.slice((4..-5).step(-5)))
+
+ assert_equal([4, 3, 2], a.slice((4...-5).step(-1)))
+ assert_equal([4, 2], a.slice((4...-5).step(-2)))
+ assert_equal([4], a.slice((4...-5).step(-3)))
+ assert_equal([4], a.slice((4...-5).step(-4)))
+
+ assert_equal([4, 3, 2, 1], a.slice((-2..-5).step(-1)))
+ assert_equal([4, 2], a.slice((-2..-5).step(-2)))
+ assert_equal([4, 1], a.slice((-2..-5).step(-3)))
+ assert_equal([4], a.slice((-2..-5).step(-4)))
+ assert_equal([4], a.slice((-2..-5).step(-5)))
+
+ assert_equal([4, 3, 2], a.slice((-2...-5).step(-1)))
+ assert_equal([4, 2], a.slice((-2...-5).step(-2)))
+ assert_equal([4], a.slice((-2...-5).step(-3)))
+ assert_equal([4], a.slice((-2...-5).step(-4)))
+ end
+
+ def test_slice_out_of_range
+ a = @cls[*(1..100).to_a]
+
+ assert_nil(a.slice(-101..-1))
+ assert_nil(a.slice(-101..))
+
+ assert_raise_with_message(RangeError, "((-101..-1).%(2)) out of range") { a.slice((-101..-1)%2) }
+ assert_raise_with_message(RangeError, "((-101..).%(2)) out of range") { a.slice((-101..)%2) }
+
+ assert_nil(a.slice(10, -3))
+ assert_equal @cls[], a.slice(10..7)
+
+ assert_equal([100], a.slice(-1, 1_000_000_000))
+ end
+
+ def test_slice_gc_compact_stress
+ omit "compaction doesn't work well on s390x" if RUBY_PLATFORM =~ /s390x/ # https://github.com/ruby/ruby/pull/5077
+ EnvUtil.under_gc_compact_stress { assert_equal([1, 2, 3, 4, 5], (0..10).to_a[1, 5]) }
+ EnvUtil.under_gc_compact_stress do
+ a = [0, 1, 2, 3, 4, 5]
+ assert_equal([2, 1, 0], a.slice((2..).step(-1)))
+ end
+ end
+
+ def test_slice!
+ a = @cls[1, 2, 3, 4, 5]
+ assert_equal(3, a.slice!(2))
+ assert_equal(@cls[1, 2, 4, 5], a)
+
+ a = @cls[1, 2, 3, 4, 5]
+ assert_equal(4, a.slice!(-2))
+ assert_equal(@cls[1, 2, 3, 5], a)
+
+ a = @cls[1, 2, 3, 4, 5]
+ s = a.slice!(2,2)
+ assert_equal_instance([3,4], s)
+ assert_equal(@cls[1, 2, 5], a)
+
+ a = @cls[1, 2, 3, 4, 5]
+ s = a.slice!(-2,2)
+ assert_equal_instance([4,5], s)
+ assert_equal(@cls[1, 2, 3], a)
+
+ a = @cls[1, 2, 3, 4, 5]
+ s = a.slice!(2..3)
+ assert_equal_instance([3,4], s)
+ assert_equal(@cls[1, 2, 5], a)
+
+ a = @cls[1, 2, 3, 4, 5]
+ assert_equal(nil, a.slice!(20))
+ assert_equal(@cls[1, 2, 3, 4, 5], a)
+
+ a = @cls[1, 2, 3, 4, 5]
+ assert_equal(nil, a.slice!(-6))
+ assert_equal(@cls[1, 2, 3, 4, 5], a)
+
+ a = @cls[1, 2, 3, 4, 5]
+ assert_equal(nil, a.slice!(-6..4))
+ assert_equal(@cls[1, 2, 3, 4, 5], a)
+
+ a = @cls[1, 2, 3, 4, 5]
+ assert_equal(nil, a.slice!(-6,2))
+ assert_equal(@cls[1, 2, 3, 4, 5], a)
+
+ assert_equal("[2, 3]", [1,2,3].slice!(1,10000).inspect, "moved from btest/knownbug")
+
+ assert_raise(ArgumentError) { @cls[1].slice! }
+ assert_raise(ArgumentError) { @cls[1].slice!(0, 0, 0) }
+ end
+
+ def test_slice_out_of_range!
+ a = @cls[*(1..100).to_a]
+
+ assert_nil(a.clone.slice!(-101..-1))
+ assert_nil(a.clone.slice!(-101..))
+
+ # assert_raise_with_message(RangeError, "((-101..-1).%(2)) out of range") { a.clone.slice!((-101..-1)%2) }
+ # assert_raise_with_message(RangeError, "((-101..).%(2)) out of range") { a.clone.slice!((-101..)%2) }
+
+ assert_nil(a.clone.slice!(10, -3))
+ assert_equal @cls[], a.clone.slice!(10..7)
+
+ assert_equal([100], a.clone.slice!(-1, 1_000_000_000))
+ end
+
+ def test_sort
+ a = @cls[ 4, 1, 2, 3 ]
+ assert_equal(@cls[1, 2, 3, 4], a.sort)
+ assert_equal(@cls[4, 1, 2, 3], a)
+
+ assert_equal(@cls[4, 3, 2, 1], a.sort { |x, y| y <=> x} )
+ assert_equal(@cls[4, 1, 2, 3], a)
+
+ assert_equal(@cls[1, 2, 3, 4], a.sort { |x, y| (x - y) * (2**100) })
+
+ a.fill(1)
+ assert_equal(@cls[1, 1, 1, 1], a.sort)
+
+ assert_equal(@cls[], @cls[].sort)
+ end
+
+ def test_sort!
+ a = @cls[ 4, 1, 2, 3 ]
+ assert_equal(@cls[1, 2, 3, 4], a.sort!)
+ assert_equal(@cls[1, 2, 3, 4], a)
+
+ assert_equal(@cls[4, 3, 2, 1], a.sort! { |x, y| y <=> x} )
+ assert_equal(@cls[4, 3, 2, 1], a)
+
+ a.fill(1)
+ assert_equal(@cls[1, 1, 1, 1], a.sort!)
+
+ assert_equal(@cls[1], @cls[1].sort!)
+ assert_equal(@cls[], @cls[].sort!)
+
+ a = @cls[4, 3, 2, 1]
+ a.sort! {|m, n| a.replace([9, 8, 7, 6]); m <=> n }
+ assert_equal([1, 2, 3, 4], a)
+
+ a = @cls[4, 3, 2, 1]
+ a.sort! {|m, n| a.replace([9, 8, 7]); m <=> n }
+ assert_equal([1, 2, 3, 4], a)
+ end
+
+ def test_freeze_inside_sort!
+ array = [1, 2, 3, 4, 5]
+ frozen_array = nil
+ assert_raise(FrozenError) do
+ count = 0
+ array.sort! do |a, b|
+ array.freeze if (count += 1) == 6
+ frozen_array ||= array.map.to_a if array.frozen?
+ b <=> a
+ end
+ end
+ assert_equal(frozen_array, array)
+
+ object = Object.new
+ array = [1, 2, 3, 4, 5]
+ object.define_singleton_method(:>){|_| array.freeze; true}
+ assert_raise(FrozenError) do
+ array.sort! do |a, b|
+ object
+ end
+ end
+
+ object = Object.new
+ array = [object, object]
+ object.define_singleton_method(:>){|_| array.freeze; true}
+ object.define_singleton_method(:<=>){|o| object}
+ assert_raise(FrozenError) do
+ array.sort!
+ end
+ end
+
+ def test_sort_with_callcc
+ need_continuation
+ n = 1000
+ cont = nil
+ ary = (1..100).to_a
+ begin
+ ary.sort! {|a,b|
+ callcc {|k| cont = k} unless cont
+ assert_equal(100, ary.size, '[ruby-core:16679]')
+ a <=> b
+ }
+ rescue => e
+ end
+ n -= 1
+ cont.call if 0 < n
+ assert_instance_of(RuntimeError, e, '[ruby-core:16679]')
+ assert_match(/reentered/, e.message, '[ruby-core:16679]')
+ end
+
+ def test_sort_with_replace
+ bug = '[ruby-core:34732]'
+ assert_separately([], "#{<<~"begin;"}\n#{<<~'end;'}", timeout: 30)
+ bug = "#{bug}"
+ begin;
+ xary = (1..100).to_a
+ 100.times do
+ ary = (1..100).to_a
+ ary.sort! {|a,b| ary.replace(xary); a <=> b}
+ GC.start
+ assert_equal(xary, ary, '[ruby-dev:34732]')
+ end
+ assert_nothing_raised(SystemStackError, bug) do
+ assert_equal(:ok, Array.new(100_000, nil).permutation {break :ok})
+ end
+ end;
+ end
+
+ def test_sort_bang_with_freeze
+ ary = []
+ o1 = Object.new
+ o1.singleton_class.class_eval {
+ define_method(:<=>) {|v|
+ ary.freeze
+ 1
+ }
+ }
+ o2 = o1.clone
+ ary << o1 << o2
+ orig = ary.dup
+ assert_raise(FrozenError, "frozen during comparison") {ary.sort!}
+ assert_equal(orig, ary, "must not be modified once frozen")
+ end
+
+ def test_short_heap_array_sort_bang_memory_leak
+ bug11332 = '[ruby-dev:49166] [Bug #11332]'
+ assert_no_memory_leak([], <<-PREP, <<-TEST, bug11332, limit: 1.3, timeout: 60)
+ def t; ary = [*1..5]; ary.pop(2); ary.sort!; end
+ 1.times {t}
+ PREP
+ 500000.times {t}
+ TEST
+ end
+
+ def test_sort_uncomparable
+ assert_raise(ArgumentError) {[1, Float::NAN].sort}
+ assert_raise(ArgumentError) {[1.0, Float::NAN].sort}
+ assert_raise(ArgumentError) {[Float::NAN, 1].sort}
+ assert_raise(ArgumentError) {[Float::NAN, 1.0].sort}
+ end
+
+ def test_to_a
+ a = @cls[ 1, 2, 3 ]
+ a_id = a.__id__
+ assert_equal(a, a.to_a)
+ assert_equal(a_id, a.to_a.__id__)
+ end
+
+ def test_to_ary
+ a = [ 1, 2, 3 ]
+ b = @cls[*a]
+
+ a_id = a.__id__
+ assert_equal(a, b.to_ary)
+ if (@cls == Array)
+ assert_equal(a_id, a.to_ary.__id__)
+ end
+
+ o = Object.new
+ def o.to_ary
+ [4, 5]
+ end
+ assert_equal([1, 2, 3, 4, 5], a.concat(o))
+
+ o = Object.new
+ def o.to_ary
+ foo_bar()
+ end
+ assert_raise_with_message(NoMethodError, /foo_bar/) {a.concat(o)}
+ end
+
+ def test_to_s
+ assert_deprecated_warning {$, = ""}
+ a = @cls[]
+ assert_equal("[]", a.to_s)
+
+ assert_deprecated_warning {$, = ""}
+ a = @cls[1, 2]
+ assert_equal("[1, 2]", a.to_s)
+
+ assert_deprecated_warning {$, = ""}
+ a = @cls[1, 2, 3]
+ assert_equal("[1, 2, 3]", a.to_s)
+
+ assert_deprecated_warning {$, = ""}
+ a = @cls[1, 2, 3]
+ assert_equal("[1, 2, 3]", a.to_s)
+ ensure
+ $, = nil
+ end
+
+ StubToH = [
+ [:key, :value],
+ Object.new.tap do |kvp|
+ def kvp.to_ary
+ [:obtained, :via_to_ary]
+ end
+ end,
+ ]
+
+ def test_to_h
+ array = StubToH
+ assert_equal({key: :value, obtained: :via_to_ary}, array.to_h)
+
+ e = assert_raise(TypeError) {
+ [[:first_one, :ok], :not_ok].to_h
+ }
+ assert_equal "wrong element type Symbol at 1 (expected array)", e.message
+ array = [eval("class C\u{1f5ff}; self; end").new]
+ assert_raise_with_message(TypeError, /C\u{1f5ff}/) {array.to_h}
+ e = assert_raise(ArgumentError) {
+ [[:first_one, :ok], [1, 2], [:not_ok]].to_h
+ }
+ assert_equal "wrong array length at 2 (expected 2, was 1)", e.message
+ end
+
+ def test_to_h_block
+ array = StubToH
+ assert_equal({"key" => "value", "obtained" => "via_to_ary"},
+ array.to_h {|k, v| [k.to_s, v.to_s]})
+
+ assert_equal({first_one: :ok, not_ok: :ng},
+ [[:first_one, :ok], :not_ok].to_h {|k, v| [k, v || :ng]})
+
+ e = assert_raise(TypeError) {
+ [[:first_one, :ok], :not_ok].to_h {|k, v| v ? [k, v] : k}
+ }
+ assert_equal "wrong element type Symbol at 1 (expected array)", e.message
+ array = [1]
+ k = eval("class C\u{1f5ff}; self; end").new
+ assert_raise_with_message(TypeError, /C\u{1f5ff}/) {array.to_h {k}}
+ e = assert_raise(ArgumentError) {
+ [[:first_one, :ok], [1, 2], [:not_ok]].to_h {|kv| kv}
+ }
+ assert_equal "wrong array length at 2 (expected 2, was 1)", e.message
+ end
+
+ def test_min
+ assert_equal(3, [3].min)
+ assert_equal(1, [1, 2, 3, 1, 2].min)
+ assert_equal(3, [1, 2, 3, 1, 2].min {|a,b| b <=> a })
+ cond = ->((a, ia), (b, ib)) { (b <=> a).nonzero? or ia <=> ib }
+ assert_equal([3, 2], [1, 2, 3, 1, 2].each_with_index.min(&cond))
+ assert_equal(1.0, [3.0, 1.0, 2.0].min)
+ ary = %w(albatross dog horse)
+ assert_equal("albatross", ary.min)
+ assert_equal("dog", ary.min {|a,b| a.length <=> b.length })
+ assert_equal(1, [3,2,1].min)
+ assert_equal(%w[albatross dog], ary.min(2))
+ assert_equal(%w[dog horse],
+ ary.min(2) {|a,b| a.length <=> b.length })
+ assert_equal([13, 14], [20, 32, 32, 21, 30, 25, 29, 13, 14].min(2))
+ assert_equal([2, 4, 6, 7], [2, 4, 8, 6, 7].min(4))
+
+ class << (obj = Object.new)
+ def <=>(x) 1 <=> x end
+ def coerce(x) [x, 1] end
+ end
+ assert_same(obj, [obj, 1.0].min)
+ end
+
+ def test_min_uncomparable
+ assert_raise(ArgumentError) {[1, Float::NAN].min}
+ assert_raise(ArgumentError) {[1.0, Float::NAN].min}
+ assert_raise(ArgumentError) {[Float::NAN, 1].min}
+ assert_raise(ArgumentError) {[Float::NAN, 1.0].min}
+ end
+
+ def test_max
+ assert_equal(1, [1].max)
+ assert_equal(3, [1, 2, 3, 1, 2].max)
+ assert_equal(1, [1, 2, 3, 1, 2].max {|a,b| b <=> a })
+ cond = ->((a, ia), (b, ib)) { (b <=> a).nonzero? or ia <=> ib }
+ assert_equal([1, 3], [1, 2, 3, 1, 2].each_with_index.max(&cond))
+ assert_equal(3.0, [1.0, 3.0, 2.0].max)
+ ary = %w(albatross dog horse)
+ assert_equal("horse", ary.max)
+ assert_equal("albatross", ary.max {|a,b| a.length <=> b.length })
+ assert_equal(1, [3,2,1].max{|a,b| b <=> a })
+ assert_equal(%w[horse dog], ary.max(2))
+ assert_equal(%w[albatross horse],
+ ary.max(2) {|a,b| a.length <=> b.length })
+ assert_equal([3, 2], [0, 0, 0, 0, 0, 0, 1, 3, 2].max(2))
+
+ class << (obj = Object.new)
+ def <=>(x) 1 <=> x end
+ def coerce(x) [x, 1] end
+ end
+ assert_same(obj, [obj, 1.0].max)
+ end
+
+ def test_max_uncomparable
+ assert_raise(ArgumentError) {[1, Float::NAN].max}
+ assert_raise(ArgumentError) {[1.0, Float::NAN].max}
+ assert_raise(ArgumentError) {[Float::NAN, 1].max}
+ assert_raise(ArgumentError) {[Float::NAN, 1.0].max}
+ end
+
+ def test_minmax
+ assert_equal([3, 3], [3].minmax)
+ assert_equal([1, 3], [1, 2, 3, 1, 2].minmax)
+ assert_equal([3, 1], [1, 2, 3, 1, 2].minmax {|a,b| b <=> a })
+ cond = ->((a, ia), (b, ib)) { (b <=> a).nonzero? or ia <=> ib }
+ assert_equal([[3, 2], [1, 3]], [1, 2, 3, 1, 2].each_with_index.minmax(&cond))
+ ary = %w(albatross dog horse)
+ assert_equal(["albatross", "horse"], ary.minmax)
+ assert_equal(["dog", "albatross"], ary.minmax {|a,b| a.length <=> b.length })
+ assert_equal([1, 3], [3,2,1].minmax)
+
+ class << (obj = Object.new)
+ def <=>(x) 1 <=> x end
+ def coerce(x) [x, 1] end
+ end
+ ary = [obj, 1.0].minmax
+ assert_same(obj, ary[0])
+ assert_equal(obj, ary[1])
+ end
+
+ def test_uniq
+ a = []
+ b = a.uniq
+ assert_equal([], a)
+ assert_equal([], b)
+ assert_not_same(a, b)
+
+ a = [1]
+ b = a.uniq
+ assert_equal([1], a)
+ assert_equal([1], b)
+ assert_not_same(a, b)
+
+ a = [1,1]
+ b = a.uniq
+ assert_equal([1,1], a)
+ assert_equal([1], b)
+ assert_not_same(a, b)
+
+ a = [1,2]
+ b = a.uniq
+ assert_equal([1,2], a)
+ assert_equal([1,2], b)
+ assert_not_same(a, b)
+
+ a = @cls[ 1, 2, 3, 2, 1, 2, 3, 4, nil ]
+ b = a.dup
+ assert_equal(@cls[1, 2, 3, 4, nil], a.uniq)
+ assert_equal(b, a)
+
+ c = @cls["a:def", "a:xyz", "b:abc", "b:xyz", "c:jkl"]
+ d = c.dup
+ assert_equal(@cls[ "a:def", "b:abc", "c:jkl" ], c.uniq {|s| s[/^\w+/]})
+ assert_equal(d, c)
+
+ assert_equal(@cls[1, 2, 3], @cls[1, 2, 3].uniq)
+
+ a = %w(a a)
+ b = a.uniq
+ assert_equal(%w(a a), a)
+ assert(a.none?(&:frozen?))
+ assert_equal(%w(a), b)
+ assert(b.none?(&:frozen?))
+
+ bug9340 = "[ruby-core:59457]"
+ ary = [bug9340, bug9340.dup, bug9340.dup]
+ assert_equal 1, ary.uniq.size
+ assert_same bug9340, ary.uniq[0]
+
+ sc = Class.new(@cls)
+ a = sc[]
+ b = a.dup
+ assert_equal_instance([], a.uniq)
+ assert_equal(b, a)
+
+ a = sc[1]
+ b = a.dup
+ assert_equal_instance([1], a.uniq)
+ assert_equal(b, a)
+
+ a = sc[1, 1]
+ b = a.dup
+ assert_equal_instance([1], a.uniq)
+ assert_equal(b, a)
+
+ a = sc[1, 1]
+ b = a.dup
+ assert_equal_instance([1], a.uniq{|x| x})
+ assert_equal(b, a)
+ end
+
+ def test_uniq_with_block
+ a = []
+ b = a.uniq {|v| v.even? }
+ assert_equal([], a)
+ assert_equal([], b)
+ assert_not_same(a, b)
+
+ a = [1]
+ b = a.uniq {|v| v.even? }
+ assert_equal([1], a)
+ assert_equal([1], b)
+ assert_not_same(a, b)
+
+ a = [1,3]
+ b = a.uniq {|v| v.even? }
+ assert_equal([1,3], a)
+ assert_equal([1], b)
+ assert_not_same(a, b)
+
+ a = %w(a a)
+ b = a.uniq {|v| v }
+ assert_equal(%w(a a), a)
+ assert(a.none?(&:frozen?))
+ assert_equal(%w(a), b)
+ assert(b.none?(&:frozen?))
+ end
+
+ def test_uniq!
+ a = []
+ b = a.uniq!
+ assert_equal(nil, b)
+
+ a = [1]
+ b = a.uniq!
+ assert_equal(nil, b)
+
+ a = [1,1]
+ b = a.uniq!
+ assert_equal([1], a)
+ assert_equal([1], b)
+ assert_same(a, b)
+
+ a = [1,2]
+ b = a.uniq!
+ assert_equal([1,2], a)
+ assert_equal(nil, b)
+
+ a = @cls[ 1, 2, 3, 2, 1, 2, 3, 4, nil ]
+ assert_equal(@cls[1, 2, 3, 4, nil], a.uniq!)
+ assert_equal(@cls[1, 2, 3, 4, nil], a)
+
+ c = @cls["a:def", "a:xyz", "b:abc", "b:xyz", "c:jkl"]
+ assert_equal(@cls[ "a:def", "b:abc", "c:jkl" ], c.uniq! {|s| s[/^\w+/]})
+ assert_equal(@cls[ "a:def", "b:abc", "c:jkl" ], c)
+
+ c = @cls["a:def", "b:abc", "c:jkl"]
+ assert_equal(nil, c.uniq! {|s| s[/^\w+/]})
+ assert_equal(@cls[ "a:def", "b:abc", "c:jkl" ], c)
+
+ assert_nil(@cls[1, 2, 3].uniq!)
+
+ f = a.dup.freeze
+ assert_raise(ArgumentError) { a.uniq!(1) }
+ assert_raise(ArgumentError) { f.uniq!(1) }
+ assert_raise(FrozenError) { f.uniq! }
+
+ assert_nothing_raised do
+ a = [ {c: "b"}, {c: "r"}, {c: "w"}, {c: "g"}, {c: "g"} ]
+ a.sort_by!{|e| e[:c]}
+ a.uniq! {|e| e[:c]}
+ end
+
+ a = %w(a a)
+ b = a.uniq
+ assert_equal(%w(a a), a)
+ assert(a.none?(&:frozen?))
+ assert_equal(%w(a), b)
+ assert(b.none?(&:frozen?))
+ end
+
+ def test_uniq_bang_with_block
+ a = []
+ b = a.uniq! {|v| v.even? }
+ assert_equal(nil, b)
+
+ a = [1]
+ b = a.uniq! {|v| v.even? }
+ assert_equal(nil, b)
+
+ a = [1,3]
+ b = a.uniq! {|v| v.even? }
+ assert_equal([1], a)
+ assert_equal([1], b)
+ assert_same(a, b)
+
+ a = [1,2]
+ b = a.uniq! {|v| v.even? }
+ assert_equal([1,2], a)
+ assert_equal(nil, b)
+
+ a = %w(a a)
+ b = a.uniq! {|v| v }
+ assert_equal(%w(a), b)
+ assert_same(a, b)
+ assert b.none?(&:frozen?)
+ end
+
+ def test_uniq_bang_with_freeze
+ ary = [1,2]
+ orig = ary.dup
+ assert_raise(FrozenError, "frozen during comparison") {
+ ary.uniq! {|v| ary.freeze; 1}
+ }
+ assert_equal(orig, ary, "must not be modified once frozen")
+ end
+
+ def test_unshift
+ a = @cls[]
+ assert_equal(@cls['cat'], a.unshift('cat'))
+ assert_equal(@cls['dog', 'cat'], a.unshift('dog'))
+ assert_equal(@cls[nil, 'dog', 'cat'], a.unshift(nil))
+ assert_equal(@cls[@cls[1,2], nil, 'dog', 'cat'], a.unshift(@cls[1, 2]))
+ end
+
+ def test_unshift_frozen
+ bug15952 = '[Bug #15952]'
+ assert_raise(FrozenError, bug15952) do
+ a = [1] * 100
+ b = a[4..-1]
+ a.replace([1])
+ b.freeze
+ b.unshift("a")
+ end
+ end
+
+ def test_OR # '|'
+ assert_equal(@cls[], @cls[] | @cls[])
+ assert_equal(@cls[1], @cls[1] | @cls[])
+ assert_equal(@cls[1], @cls[] | @cls[1])
+ assert_equal(@cls[1], @cls[1] | @cls[1])
+
+ assert_equal(@cls[1,2], @cls[1] | @cls[2])
+ assert_equal(@cls[1,2], @cls[1, 1] | @cls[2, 2])
+ assert_equal(@cls[1,2], @cls[1, 2] | @cls[1, 2])
+
+ a = %w(a b c)
+ b = %w(a b c d e)
+ c = a | b
+ assert_equal(c, b)
+ assert_not_same(c, b)
+ assert_equal(%w(a b c), a)
+ assert_equal(%w(a b c d e), b)
+ assert(a.none?(&:frozen?))
+ assert(b.none?(&:frozen?))
+ assert(c.none?(&:frozen?))
+ end
+
+ def test_OR_in_order
+ obj1, obj2 = Class.new do
+ attr_reader :name
+ def initialize(name) @name = name; end
+ def inspect; "test_OR_in_order(#{@name})"; end
+ def hash; 0; end
+ def eql?(a) true; end
+ break [new("1"), new("2")]
+ end
+ assert_equal([obj1], [obj1]|[obj2])
+ end
+
+ def test_OR_big_in_order
+ obj1, obj2 = Class.new do
+ attr_reader :name
+ def initialize(name) @name = name; end
+ def inspect; "test_OR_in_order(#{@name})"; end
+ def hash; 0; end
+ def eql?(a) true; end
+ break [new("1"), new("2")]
+ end
+ assert_equal([obj1], [obj1]*64|[obj2]*64)
+ end
+
+ def test_OR_big_array # '|'
+ assert_equal(@cls[1,2], @cls[1]*64 | @cls[2]*64)
+ assert_equal(@cls[1,2], @cls[1, 2]*64 | @cls[1, 2]*64)
+
+ a = (1..64).to_a
+ b = (1..128).to_a
+ c = a | b
+ assert_equal(c, b)
+ assert_not_same(c, b)
+ assert_equal((1..64).to_a, a)
+ assert_equal((1..128).to_a, b)
+ end
+
+ def test_union
+ assert_equal(@cls[], @cls[].union(@cls[]))
+ assert_equal(@cls[1], @cls[1].union(@cls[]))
+ assert_equal(@cls[1], @cls[].union(@cls[1]))
+ assert_equal(@cls[1], @cls[].union(@cls[], @cls[1]))
+ assert_equal(@cls[1], @cls[1].union(@cls[1]))
+ assert_equal(@cls[1], @cls[1].union(@cls[1], @cls[1], @cls[1]))
+
+ assert_equal(@cls[1,2], @cls[1].union(@cls[2]))
+ assert_equal(@cls[1,2], @cls[1, 1].union(@cls[2, 2]))
+ assert_equal(@cls[1,2], @cls[1, 2].union(@cls[1, 2]))
+ assert_equal(@cls[1,2], @cls[1, 1].union(@cls[1, 1], @cls[1, 2], @cls[2, 1], @cls[2, 2, 2]))
+
+ a = %w(a b c)
+ b = %w(a b c d e)
+ c = a.union(b)
+ assert_equal(c, b)
+ assert_not_same(c, b)
+ assert_equal(%w(a b c), a)
+ assert_equal(%w(a b c d e), b)
+ assert(a.none?(&:frozen?))
+ assert(b.none?(&:frozen?))
+ assert(c.none?(&:frozen?))
+ end
+
+ def test_union_big_array
+ assert_equal(@cls[1,2], (@cls[1]*64).union(@cls[2]*64))
+ assert_equal(@cls[1,2,3], (@cls[1, 2]*64).union(@cls[1, 2]*64, @cls[3]*60))
+
+ a = (1..64).to_a
+ b = (1..128).to_a
+ c = a | b
+ assert_equal(c, b)
+ assert_not_same(c, b)
+ assert_equal((1..64).to_a, a)
+ assert_equal((1..128).to_a, b)
+ end
+
+ def test_combination
+ a = @cls[]
+ assert_equal(1, a.combination(0).size)
+ assert_equal(0, a.combination(1).size)
+ a = @cls[1,2,3,4]
+ assert_equal(1, a.combination(0).size)
+ assert_equal(4, a.combination(1).size)
+ assert_equal(6, a.combination(2).size)
+ assert_equal(4, a.combination(3).size)
+ assert_equal(1, a.combination(4).size)
+ assert_equal(0, a.combination(5).size)
+ assert_equal(@cls[[]], a.combination(0).to_a)
+ assert_equal(@cls[[1],[2],[3],[4]], a.combination(1).to_a)
+ assert_equal(@cls[[1,2],[1,3],[1,4],[2,3],[2,4],[3,4]], a.combination(2).to_a)
+ assert_equal(@cls[[1,2,3],[1,2,4],[1,3,4],[2,3,4]], a.combination(3).to_a)
+ assert_equal(@cls[[1,2,3,4]], a.combination(4).to_a)
+ assert_equal(@cls[], a.combination(5).to_a)
+ end
+
+ def test_product
+ assert_equal(@cls[[1,4],[1,5],[2,4],[2,5],[3,4],[3,5]],
+ @cls[1,2,3].product([4,5]))
+ assert_equal(@cls[[1,1],[1,2],[2,1],[2,2]], @cls[1,2].product([1,2]))
+
+ assert_equal(@cls[[1,3,5],[1,3,6],[1,4,5],[1,4,6],
+ [2,3,5],[2,3,6],[2,4,5],[2,4,6]],
+ @cls[1,2].product([3,4],[5,6]))
+ assert_equal(@cls[[1],[2]], @cls[1,2].product)
+ assert_equal(@cls[], @cls[1,2].product([]))
+
+ bug3394 = '[ruby-dev:41540]'
+ acc = []
+ EnvUtil.under_gc_stress {[1,2].product([3,4,5],[6,8]){|array| acc << array}}
+ assert_equal([[1, 3, 6], [1, 3, 8], [1, 4, 6], [1, 4, 8], [1, 5, 6], [1, 5, 8],
+ [2, 3, 6], [2, 3, 8], [2, 4, 6], [2, 4, 8], [2, 5, 6], [2, 5, 8]],
+ acc, bug3394)
+
+ def (o = Object.new).to_ary; GC.start; [3,4] end
+ acc = [1,2].product(*[o]*10)
+ assert_equal([1,2].product([3,4], [3,4], [3,4], [3,4], [3,4], [3,4], [3,4], [3,4], [3,4], [3,4]),
+ acc)
+
+ a = []
+ [1, 2].product([0, 1, 2, 3, 4][1, 4]) {|x| a << x }
+ a.all? {|x| assert_not_include(x, 0)}
+ end
+
+ def test_permutation
+ a = @cls[]
+ assert_equal(1, a.permutation(0).size)
+ assert_equal(0, a.permutation(1).size)
+ a = @cls[1,2,3]
+ assert_equal(1, a.permutation(0).size)
+ assert_equal(3, a.permutation(1).size)
+ assert_equal(6, a.permutation(2).size)
+ assert_equal(6, a.permutation(3).size)
+ assert_equal(0, a.permutation(4).size)
+ assert_equal(6, a.permutation.size)
+ assert_equal(@cls[[]], a.permutation(0).to_a)
+ assert_equal(@cls[[1],[2],[3]], a.permutation(1).to_a.sort)
+ assert_equal(@cls[[1,2],[1,3],[2,1],[2,3],[3,1],[3,2]],
+ a.permutation(2).to_a.sort)
+ assert_equal(@cls[[1,2,3],[1,3,2],[2,1,3],[2,3,1],[3,1,2],[3,2,1]],
+ a.permutation(3).sort.to_a)
+ assert_equal(@cls[], a.permutation(4).to_a)
+ assert_equal(@cls[], a.permutation(-1).to_a)
+ assert_equal("abcde".each_char.to_a.permutation(5).sort,
+ "edcba".each_char.to_a.permutation(5).sort)
+ assert_equal(@cls[].permutation(0).to_a, @cls[[]])
+
+ a = @cls[1, 2, 3, 4]
+ b = @cls[]
+ a.permutation {|x| b << x; a.replace(@cls[9, 8, 7, 6]) }
+ assert_equal(@cls[9, 8, 7, 6], a)
+ assert_equal(@cls[1, 2, 3, 4].permutation.to_a, b)
+
+ bug3708 = '[ruby-dev:42067]'
+ assert_equal(b, @cls[0, 1, 2, 3, 4][1, 4].permutation.to_a, bug3708)
+ end
+
+ def test_permutation_stack_error
+ bug9932 = '[ruby-core:63103] [Bug #9932]'
+ assert_separately([], "#{<<~"begin;"}\n#{<<~'end;'}", timeout: 30)
+ bug = "#{bug9932}"
+ begin;
+ assert_nothing_raised(SystemStackError, bug) do
+ assert_equal(:ok, Array.new(100_000, nil).permutation {break :ok})
+ end
+ end;
+ end
+
+ def test_repeated_permutation
+ a = @cls[]
+ assert_equal(1, a.repeated_permutation(0).size)
+ assert_equal(0, a.repeated_permutation(1).size)
+ a = @cls[1,2]
+ assert_equal(1, a.repeated_permutation(0).size)
+ assert_equal(2, a.repeated_permutation(1).size)
+ assert_equal(4, a.repeated_permutation(2).size)
+ assert_equal(8, a.repeated_permutation(3).size)
+ assert_equal(@cls[[]], a.repeated_permutation(0).to_a)
+ assert_equal(@cls[[1],[2]], a.repeated_permutation(1).to_a.sort)
+ assert_equal(@cls[[1,1],[1,2],[2,1],[2,2]],
+ a.repeated_permutation(2).to_a.sort)
+ assert_equal(@cls[[1,1,1],[1,1,2],[1,2,1],[1,2,2],
+ [2,1,1],[2,1,2],[2,2,1],[2,2,2]],
+ a.repeated_permutation(3).to_a.sort)
+ assert_equal(@cls[], a.repeated_permutation(-1).to_a)
+ assert_equal("abcde".each_char.to_a.repeated_permutation(5).sort,
+ "edcba".each_char.to_a.repeated_permutation(5).sort)
+ assert_equal(@cls[].repeated_permutation(0).to_a, @cls[[]])
+ assert_equal(@cls[].repeated_permutation(1).to_a, @cls[])
+
+ a = @cls[1, 2, 3, 4]
+ b = @cls[]
+ a.repeated_permutation(4) {|x| b << x; a.replace(@cls[9, 8, 7, 6]) }
+ assert_equal(@cls[9, 8, 7, 6], a)
+ assert_equal(@cls[1, 2, 3, 4].repeated_permutation(4).to_a, b)
+
+ a = @cls[0, 1, 2, 3, 4][1, 4].repeated_permutation(2)
+ assert_empty(a.reject {|x| !x.include?(0)})
+ end
+
+ def test_repeated_permutation_stack_error
+ assert_separately([], "#{<<-"begin;"}\n#{<<~'end;'}", timeout: 30)
+ begin;
+ assert_nothing_raised(SystemStackError) do
+ assert_equal(:ok, Array.new(100_000, nil).repeated_permutation(500_000) {break :ok})
+ end
+ end;
+ end
+
+ def test_repeated_combination
+ a = @cls[]
+ assert_equal(1, a.repeated_combination(0).size)
+ assert_equal(0, a.repeated_combination(1).size)
+ a = @cls[1,2,3]
+ assert_equal(1, a.repeated_combination(0).size)
+ assert_equal(3, a.repeated_combination(1).size)
+ assert_equal(6, a.repeated_combination(2).size)
+ assert_equal(10, a.repeated_combination(3).size)
+ assert_equal(15, a.repeated_combination(4).size)
+ assert_equal(@cls[[]], a.repeated_combination(0).to_a)
+ assert_equal(@cls[[1],[2],[3]], a.repeated_combination(1).to_a.sort)
+ assert_equal(@cls[[1,1],[1,2],[1,3],[2,2],[2,3],[3,3]],
+ a.repeated_combination(2).to_a.sort)
+ assert_equal(@cls[[1,1,1],[1,1,2],[1,1,3],[1,2,2],[1,2,3],
+ [1,3,3],[2,2,2],[2,2,3],[2,3,3],[3,3,3]],
+ a.repeated_combination(3).to_a.sort)
+ assert_equal(@cls[[1,1,1,1],[1,1,1,2],[1,1,1,3],[1,1,2,2],[1,1,2,3],
+ [1,1,3,3],[1,2,2,2],[1,2,2,3],[1,2,3,3],[1,3,3,3],
+ [2,2,2,2],[2,2,2,3],[2,2,3,3],[2,3,3,3],[3,3,3,3]],
+ a.repeated_combination(4).to_a.sort)
+ assert_equal(@cls[], a.repeated_combination(-1).to_a)
+ assert_equal("abcde".each_char.to_a.repeated_combination(5).map{|e|e.sort}.sort,
+ "edcba".each_char.to_a.repeated_combination(5).map{|e|e.sort}.sort)
+ assert_equal(@cls[].repeated_combination(0).to_a, @cls[[]])
+ assert_equal(@cls[].repeated_combination(1).to_a, @cls[])
+
+ a = @cls[1, 2, 3, 4]
+ b = @cls[]
+ a.repeated_combination(4) {|x| b << x; a.replace(@cls[9, 8, 7, 6]) }
+ assert_equal(@cls[9, 8, 7, 6], a)
+ assert_equal(@cls[1, 2, 3, 4].repeated_combination(4).to_a, b)
+
+ a = @cls[0, 1, 2, 3, 4][1, 4].repeated_combination(2)
+ assert_empty(a.reject {|x| !x.include?(0)})
+ end
+
+ def test_repeated_combination_stack_error
+ assert_separately([], "#{<<~"begin;"}\n#{<<~'end;'}", timeout: 20)
+ begin;
+ assert_nothing_raised(SystemStackError) do
+ assert_equal(:ok, Array.new(100_000, nil).repeated_combination(500_000) {break :ok})
+ end
+ end;
+ end
+
+ def test_take
+ assert_equal_instance([1,2,3], @cls[1,2,3,4,5,0].take(3))
+ assert_raise(ArgumentError, '[ruby-dev:34123]') { [1,2].take(-1) }
+ assert_equal_instance([1,2], @cls[1,2].take(1000000000), '[ruby-dev:34123]')
+ end
+
+ def test_take_while
+ assert_equal_instance([1,2], @cls[1,2,3,4,5,0].take_while {|i| i < 3 })
+ end
+
+ def test_drop
+ assert_equal_instance([4,5,0], @cls[1,2,3,4,5,0].drop(3))
+ assert_raise(ArgumentError, '[ruby-dev:34123]') { [1,2].drop(-1) }
+ assert_equal_instance([], @cls[1,2].drop(1000000000), '[ruby-dev:34123]')
+ end
+
+ def test_drop_while
+ assert_equal_instance([3,4,5,0], @cls[1,2,3,4,5,0].drop_while {|i| i < 3 })
+ end
+
+ LONGP = [127, 63, 31, 15, 7].map {|x| 2**x-1 }.find do |x|
+ begin
+ [].first(x)
+ rescue ArgumentError
+ true
+ rescue RangeError
+ false
+ end
+ end
+
+ def test_ary_new
+ assert_raise(ArgumentError) { [].to_enum.first(-1) }
+ assert_raise(ArgumentError) { [].to_enum.first(LONGP) }
+ end
+
+ def test_try_convert
+ assert_equal([1], Array.try_convert([1]))
+ assert_equal(nil, Array.try_convert("1"))
+ end
+
+ def test_initialize
+ assert_nothing_raised { [].instance_eval { initialize } }
+ assert_warning(/given block not used/) { Array.new { } }
+ assert_equal([1, 2, 3], Array.new([1, 2, 3]))
+ assert_raise(ArgumentError) { Array.new(-1, 1) }
+ assert_raise(ArgumentError) { Array.new(LONGP, 1) }
+ assert_equal([1, 1, 1], Array.new(3, 1))
+ assert_equal([1, 1, 1], Array.new(3) { 1 })
+ assert_equal([1, 1, 1], assert_warning(/block supersedes default value argument/) {Array.new(3, 1) { 1 }})
+ end
+
+ def test_aset_error
+ assert_raise(IndexError) { [0][-2] = 1 }
+ assert_raise(IndexError) { [0][LONGP] = 2 }
+ assert_raise(IndexError) { [0][(LONGP + 1) / 2 - 1] = 2 }
+ assert_raise(IndexError) { [0][LONGP..-1] = 2 }
+ assert_raise(IndexError) { [0][LONGP..] = 2 }
+ a = [0]
+ a[2] = 4
+ assert_equal([0, nil, 4], a)
+ assert_raise(ArgumentError) { [0][0, 0, 0] = 0 }
+ assert_raise(ArgumentError) { [0].freeze[0, 0, 0] = 0 }
+ assert_raise(TypeError) { [0][:foo] = 0 }
+ assert_raise(FrozenError) { [0].freeze[:foo] = 0 }
+
+ # [Bug #17271]
+ assert_raise_with_message(RangeError, "-7.. out of range") { [*0..5][-7..] = 1 }
+ end
+
+ def test_first2
+ assert_equal([0], [0].first(2))
+ assert_raise(ArgumentError) { [0].first(-1) }
+ end
+
+ def test_last2
+ assert_equal([0], [0].last(2))
+ assert_raise(ArgumentError) { [0].last(-1) }
+ end
+
+ def test_shift2
+ assert_equal(0, ([0] * 16).shift)
+ # check
+ a = [0, 1, 2]
+ a[3] = 3
+ a.shift(2)
+ assert_equal([2, 3], a)
+
+ assert_equal([1,1,1], ([1] * 100).shift(3))
+ end
+
+ def test_unshift_error
+ assert_raise(FrozenError) { [].freeze.unshift('cat') }
+ assert_raise(FrozenError) { [].freeze.unshift() }
+ end
+
+ def test_aref
+ assert_raise(ArgumentError) { [][0, 0, 0] }
+ assert_raise(ArgumentError) { @cls[][0, 0, 0] }
+ end
+
+ def test_fetch
+ assert_equal(1, assert_warning(/block supersedes default value argument/) {[].fetch(0, 0) { 1 }})
+ assert_equal(1, [0, 1].fetch(-1))
+ assert_raise(IndexError) { [0, 1].fetch(2) }
+ assert_raise(IndexError) { [0, 1].fetch(-3) }
+ assert_equal(2, [0, 1].fetch(2, 2))
+ end
+
+ def test_fetch_values
+ ary = @cls[1, 2, 3]
+ assert_equal([], ary.fetch_values())
+ assert_equal([1], ary.fetch_values(0))
+ assert_equal([3, 1, 3], ary.fetch_values(2, 0, -1))
+ assert_raise(TypeError) {ary.fetch_values("")}
+ assert_raise(IndexError) {ary.fetch_values(10)}
+ assert_raise(IndexError) {ary.fetch_values(-20)}
+ assert_equal(["10 not found"], ary.fetch_values(10) {|i| "#{i} not found"})
+ assert_equal(["10 not found", 3], ary.fetch_values(10, 2) {|i| "#{i} not found"})
+ end
+
+ def test_index2
+ a = [0, 1, 2]
+ assert_equal(a, a.index.to_a)
+ assert_equal(1, a.index {|x| x == 1 })
+ end
+
+ def test_rindex2
+ a = [0, 1, 2]
+ assert_equal([2, 1, 0], a.rindex.to_a)
+ assert_equal(1, a.rindex {|x| x == 1 })
+
+ a = [0, 1]
+ e = a.rindex
+ assert_equal(1, e.next)
+ a.clear
+ assert_raise(StopIteration) { e.next }
+
+ o = Object.new
+ class << o; self; end.class_eval do
+ define_method(:==) {|x| a.clear; false }
+ end
+ a = [nil, o]
+ assert_equal(nil, a.rindex(0))
+ end
+
+ def test_ary_to_ary
+ o = Object.new
+ def o.to_ary; [1, 2, 3]; end
+ a, b, c = o
+ assert_equal([1, 2, 3], [a, b, c])
+ end
+
+ def test_splice
+ a = [0]
+ assert_raise(IndexError) { a[-2, 0] = nil }
+ end
+
+ def test_insert
+ a = [0]
+ assert_equal([0], a.insert(1))
+ assert_equal([0, 1], a.insert(1, 1))
+ assert_raise(ArgumentError) { a.insert }
+ assert_raise(TypeError) { a.insert(Object.new) }
+ assert_equal([0, 1, 2], a.insert(-1, 2))
+ assert_equal([0, 1, 3, 2], a.insert(-2, 3))
+ assert_raise_with_message(IndexError, /-6/) { a.insert(-6, 4) }
+ assert_raise(FrozenError) { [0].freeze.insert(0)}
+ assert_raise(ArgumentError) { [0].freeze.insert }
+ end
+
+ def test_join2
+ a = []
+ a << a
+ assert_raise(ArgumentError){a.join}
+
+ def (a = Object.new).to_ary
+ [self]
+ end
+ assert_raise(ArgumentError, '[ruby-core:24150]'){[a].join}
+ assert_equal("12345", [1,[2,[3,4],5]].join)
+ end
+
+ def test_join_recheck_elements_type
+ x = Struct.new(:ary).new
+ def x.to_str
+ ary[2] = [0, 1, 2]
+ "z"
+ end
+ (x.ary = ["a", "b", "c", x])
+ assert_equal("ab012z", x.ary.join(""))
+ end
+
+ def test_join_recheck_array_length
+ x = Struct.new(:ary).new
+ def x.to_str
+ ary.clear
+ ary[0] = "b"
+ "z"
+ end
+ x.ary = Array.new(1023) {"a"*1} << x
+ assert_equal("b", x.ary.join(""))
+ end
+
+ def test_to_a2
+ klass = Class.new(Array)
+ a = klass.new.to_a
+ assert_equal([], a)
+ assert_equal(Array, a.class)
+ end
+
+ def test_values_at2
+ a = [0, 1, 2, 3, 4, 5]
+ assert_equal([1, 2, 3], a.values_at(1..3))
+ assert_equal([nil, nil], a.values_at(7..8))
+ bug6203 = '[ruby-core:43678]'
+ assert_equal([4, 5, nil, nil], a.values_at(4..7), bug6203)
+ assert_equal([nil], a.values_at(2**31-1))
+ end
+
+ def test_select
+ assert_equal([0, 2], [0, 1, 2, 3].select {|x| x % 2 == 0 })
+ end
+
+ # also keep_if
+ def test_select!
+ a = @cls[ 1, 2, 3, 4, 5 ]
+ assert_equal(nil, a.select! { true })
+ assert_equal(@cls[1, 2, 3, 4, 5], a)
+
+ a = @cls[ 1, 2, 3, 4, 5 ]
+ assert_equal(a, a.select! { false })
+ assert_equal(@cls[], a)
+
+ a = @cls[ 1, 2, 3, 4, 5 ]
+ assert_equal(a, a.select! { |i| i > 3 })
+ assert_equal(@cls[4, 5], a)
+
+ bug10722 = '[ruby-dev:48805] [Bug #10722]'
+ a = @cls[ 5, 6, 7, 8, 9, 10 ]
+ r = a.select! {|i|
+ break i if i > 8
+ # assert_equal(a[0], i, "should be selected values only") if i == 7
+ i >= 7
+ }
+ assert_equal(9, r)
+ assert_equal(@cls[7, 8, 9, 10], a, bug10722)
+
+ bug13053 = '[ruby-core:78739] [Bug #13053] Array#select! can resize to negative size'
+ a = @cls[ 1, 2, 3, 4, 5 ]
+ a.select! {|i| a.clear if i == 5; false }
+ assert_equal(0, a.size, bug13053)
+
+ assert_raise(FrozenError) do
+ a = @cls[1, 2, 3, 42]
+ a.select! do
+ a.freeze
+ false
+ end
+ end
+ assert_equal(@cls[1, 2, 3, 42], a)
+ end
+
+ # also select!
+ def test_keep_if
+ a = @cls[ 1, 2, 3, 4, 5 ]
+ assert_equal(a, a.keep_if { true })
+ assert_equal(@cls[1, 2, 3, 4, 5], a)
+
+ a = @cls[ 1, 2, 3, 4, 5 ]
+ assert_equal(a, a.keep_if { false })
+ assert_equal(@cls[], a)
+
+ a = @cls[ 1, 2, 3, 4, 5 ]
+ assert_equal(a, a.keep_if { |i| i > 3 })
+ assert_equal(@cls[4, 5], a)
+
+ assert_raise(FrozenError) do
+ a = @cls[1, 2, 3, 42]
+ a.keep_if do
+ a.freeze
+ false
+ end
+ end
+ assert_equal(@cls[1, 2, 3, 42], a)
+ end
+
+ def test_filter
+ assert_equal([0, 2], [0, 1, 2, 3].filter {|x| x % 2 == 0 })
+ end
+
+ # alias for select!
+ def test_filter!
+ a = @cls[ 1, 2, 3, 4, 5 ]
+ assert_equal(nil, a.filter! { true })
+ assert_equal(@cls[1, 2, 3, 4, 5], a)
+
+ a = @cls[ 1, 2, 3, 4, 5 ]
+ assert_equal(a, a.filter! { false })
+ assert_equal(@cls[], a)
+
+ a = @cls[ 1, 2, 3, 4, 5 ]
+ assert_equal(a, a.filter! { |i| i > 3 })
+ assert_equal(@cls[4, 5], a)
+ end
+
+ def test_delete2
+ a = [0] * 1024 + [1] + [0] * 1024
+ a.delete(0)
+ assert_equal([1], a)
+ end
+
+ def test_reject
+ assert_equal([1, 3], [0, 1, 2, 3].reject {|x| x % 2 == 0 })
+ end
+
+ def test_reject_with_callcc
+ need_continuation
+ bug9727 = '[ruby-dev:48101] [Bug #9727]'
+ cont = nil
+ a = [*1..10].reject do |i|
+ callcc {|c| cont = c} if !cont and i == 10
+ false
+ end
+ if a.size < 1000
+ a.unshift(:x)
+ cont.call
+ end
+ assert_equal(1000, a.size, bug9727)
+ assert_equal([:x, *1..10], a.uniq, bug9727)
+ end
+
+ def test_zip
+ assert_equal([[1, :a, "a"], [2, :b, "b"], [3, nil, "c"]],
+ [1, 2, 3].zip([:a, :b], ["a", "b", "c", "d"]))
+ a = []
+ [1, 2, 3].zip([:a, :b], ["a", "b", "c", "d"]) {|x| a << x }
+ assert_equal([[1, :a, "a"], [2, :b, "b"], [3, nil, "c"]], a)
+
+ ary = Object.new
+ def ary.to_a; [1, 2]; end
+ assert_raise(TypeError) {%w(a b).zip(ary)}
+ def ary.each; [3, 4].each{|e|yield e}; end
+ assert_equal([['a', 3], ['b', 4]], %w(a b).zip(ary))
+ def ary.to_ary; [5, 6]; end
+ assert_equal([['a', 5], ['b', 6]], %w(a b).zip(ary))
+ end
+
+ def test_zip_bug
+ bug8153 = "ruby-core:53650"
+ r = [1]
+ def r.respond_to?(*)
+ super
+ end
+ assert_equal [[42, 1]], [42].zip(r), bug8153
+ end
+
+ def test_zip_with_enumerator
+ bug17814 = "ruby-core:103513"
+
+ step = 0.step
+ e = Enumerator.produce { step.next }
+ a = %w(a b c)
+ assert_equal([["a", 0], ["b", 1], ["c", 2]], a.zip(e), bug17814)
+ assert_equal([["a", 3], ["b", 4], ["c", 5]], a.zip(e), bug17814)
+ assert_equal([["a", 6], ["b", 7], ["c", 8]], a.zip(e), bug17814)
+ end
+
+ def test_transpose
+ assert_equal([[1, :a], [2, :b], [3, :c]],
+ [[1, 2, 3], [:a, :b, :c]].transpose)
+ assert_raise(IndexError) { [[1, 2, 3], [:a, :b]].transpose }
+ end
+
+ def test_clear2
+ assert_equal([], ([0] * 1024).clear)
+ end
+
+ def test_fill2
+ assert_raise(ArgumentError) { [].fill(0, 1, LONGP) }
+ end
+
+ def test_times
+ assert_raise(ArgumentError) { [0, 0, 0, 0] * ((LONGP + 1) / 4) }
+ end
+
+ def test_equal
+ o = Object.new
+ def o.to_ary; end
+ def o.==(x); :foo; end
+ assert_equal([0, 1, 2], o)
+ assert_not_equal([0, 1, 2], [0, 1, 3])
+ end
+
+ def test_equal_resize
+ $test_equal_resize_a = Array.new(3, &:to_s)
+ $test_equal_resize_b = $test_equal_resize_a.dup
+ o = Object.new
+ def o.==(o)
+ $test_equal_resize_a.clear
+ $test_equal_resize_b.clear
+ true
+ end
+ $test_equal_resize_a[1] = o
+ assert_equal($test_equal_resize_a, $test_equal_resize_b)
+ end
+
+ def test_flatten_error
+ a = []
+ f = [].freeze
+ assert_raise(ArgumentError) { a.flatten!(1, 2) }
+ assert_raise(TypeError) { a.flatten!(:foo) }
+ assert_raise(ArgumentError) { f.flatten!(1, 2) }
+ assert_raise(FrozenError) { f.flatten! }
+ assert_raise(FrozenError) { f.flatten!(:foo) }
+ end
+
+ def test_shuffle
+ 100.times do
+ assert_equal([0, 1, 2], [2, 1, 0].shuffle.sort)
+ end
+
+ gen = Random.new(0)
+ assert_raise(ArgumentError) {[1, 2, 3].shuffle(1, random: gen)}
+ srand(0)
+ 100.times do
+ assert_equal([0, 1, 2].shuffle, [0, 1, 2].shuffle(random: gen))
+ end
+
+ assert_raise_with_message(ArgumentError, /unknown keyword/) do
+ [0, 1, 2].shuffle(xawqij: "a")
+ end
+ assert_raise_with_message(ArgumentError, /unknown keyword/) do
+ [0, 1, 2].shuffle!(xawqij: "a")
+ end
+ end
+
+ def test_shuffle_random_out_of_range
+ gen = random_generator {10000000}
+ assert_raise(RangeError) {
+ [*0..2].shuffle(random: gen)
+ }
+ gen = random_generator {-1}
+ assert_raise(RangeError) {
+ [*0..2].shuffle(random: gen)
+ }
+ end
+
+ def test_shuffle_random_clobbering
+ ary = (0...10000).to_a
+ gen = random_generator do
+ ary.replace([])
+ 0.5
+ end
+ assert_raise(RuntimeError) {ary.shuffle!(random: gen)}
+ end
+
+ def test_shuffle_random_zero
+ zero = Struct.new(:to_int).new(0)
+ gen_to_int = random_generator {|max| zero}
+ ary = (0...10000).to_a
+ assert_equal(ary.rotate, ary.shuffle(random: gen_to_int))
+ end
+
+ def test_shuffle_random_invalid_generator
+ ary = (0...10).to_a
+ assert_raise(NoMethodError) {
+ ary.shuffle(random: Object.new)
+ }
+ assert_raise(NoMethodError) {
+ ary.shuffle!(random: Object.new)
+ }
+ end
+
+ def test_sample
+ 100.times do
+ assert_include([0, 1, 2], [2, 1, 0].sample)
+ samples = [2, 1, 0].sample(2)
+ samples.each{|sample|
+ assert_include([0, 1, 2], sample)
+ }
+ end
+ end
+
+ def test_sample_statistics
+ srand(0)
+ a = (1..18).to_a
+ (0..20).each do |n|
+ 100.times do
+ b = a.sample(n)
+ assert_equal([n, 18].min, b.size)
+ assert_equal(a, (a | b).sort)
+ assert_equal(b.sort, (a & b).sort)
+ end
+
+ h = Hash.new(0)
+ 1000.times do
+ a.sample(n).each {|x| h[x] += 1 }
+ end
+ assert_operator(h.values.min * 2, :>=, h.values.max) if n != 0
+ end
+ end
+
+ def test_sample_invalid_argument
+ assert_raise(ArgumentError, '[ruby-core:23374]') {[1, 2].sample(-1)}
+ end
+
+ def test_sample_random_srand0
+ gen = Random.new(0)
+ srand(0)
+ a = (1..18).to_a
+ (0..20).each do |n|
+ 100.times do |i|
+ assert_equal(a.sample(n), a.sample(n, random: gen), "#{i}/#{n}")
+ end
+ end
+ end
+
+ def test_sample_unknown_keyword
+ assert_raise_with_message(ArgumentError, /unknown keyword/) do
+ [0, 1, 2].sample(xawqij: "a")
+ end
+ end
+
+ def test_sample_random_generator
+ ary = (0...10000).to_a
+ assert_raise(ArgumentError) {ary.sample(1, 2, random: nil)}
+ gen0 = random_generator {|max| max/2}
+ gen1 = random_generator do |max|
+ ary.replace([])
+ max/2
+ end
+ assert_equal(5000, ary.sample(random: gen0))
+ assert_nil(ary.sample(random: gen1))
+ assert_equal([], ary)
+ ary = (0...10000).to_a
+ assert_equal([5000], ary.sample(1, random: gen0))
+ assert_equal([], ary.sample(1, random: gen1))
+ assert_equal([], ary)
+ ary = (0...10000).to_a
+ assert_equal([5000, 4999], ary.sample(2, random: gen0))
+ assert_equal([], ary.sample(2, random: gen1))
+ assert_equal([], ary)
+ ary = (0...10000).to_a
+ assert_equal([5000, 4999, 5001], ary.sample(3, random: gen0))
+ assert_equal([], ary.sample(3, random: gen1))
+ assert_equal([], ary)
+ ary = (0...10000).to_a
+ assert_equal([5000, 4999, 5001, 4998], ary.sample(4, random: gen0))
+ assert_equal([], ary.sample(4, random: gen1))
+ assert_equal([], ary)
+ ary = (0...10000).to_a
+ assert_equal([5000, 4999, 5001, 4998, 5002, 4997, 5003, 4996, 5004, 4995], ary.sample(10, random: gen0))
+ assert_equal([], ary.sample(10, random: gen1))
+ assert_equal([], ary)
+ ary = (0...10000).to_a
+ assert_equal([5000, 0, 5001, 2, 5002, 4, 5003, 6, 5004, 8, 5005], ary.sample(11, random: gen0))
+ ary.sample(11, random: gen1) # implementation detail, may change in the future
+ assert_equal([], ary)
+ end
+
+ def test_sample_random_generator_half
+ half = Struct.new(:to_int).new(5000)
+ gen_to_int = random_generator {|max| half}
+ ary = (0...10000).to_a
+ assert_equal(5000, ary.sample(random: gen_to_int))
+ end
+
+ def test_sample_random_out_of_range
+ gen = random_generator {10000000}
+ assert_raise(RangeError) {
+ [*0..2].sample(random: gen)
+ }
+ gen = random_generator {-1}
+ assert_raise(RangeError) {
+ [*0..2].sample(random: gen)
+ }
+ end
+
+ def test_sample_random_invalid_generator
+ ary = (0..10).to_a
+ assert_raise(NoMethodError) {
+ ary.sample(random: Object.new)
+ }
+ end
+
+ def test_cycle
+ a = []
+ [0, 1, 2].cycle do |i|
+ a << i
+ break if a.size == 10
+ end
+ assert_equal([0, 1, 2, 0, 1, 2, 0, 1, 2, 0], a)
+
+ a = [0, 1, 2]
+ assert_nil(a.cycle { a.clear })
+
+ a = []
+ [0, 1, 2].cycle(3) {|i| a << i }
+ assert_equal([0, 1, 2, 0, 1, 2, 0, 1, 2], a)
+
+ assert_equal(Float::INFINITY, a.cycle.size)
+ assert_equal(27, a.cycle(3).size)
+ end
+
+ def test_reverse_each2
+ a = [0, 1, 2, 3, 4, 5]
+ r = []
+ a.reverse_each do |x|
+ r << x
+ a.pop
+ a.pop
+ end
+ assert_equal([5, 3, 1], r)
+ end
+
+ def test_combination2
+ assert_equal(:called, (0..100).to_a.combination(50) { break :called }, "[ruby-core:29240] ... must be yielded even if 100C50 > signed integer")
+ end
+
+ def test_combination_clear
+ bug9939 = '[ruby-core:63149] [Bug #9939]'
+ assert_nothing_raised(bug9939) {
+ a = [*0..100]
+ a.combination(3) {|*,x| a.clear}
+ }
+
+ bug13052 = '[ruby-core:78738] [Bug #13052] Array#combination segfaults if the Array is modified during iteration'
+ assert_nothing_raised(bug13052) {
+ a = [*0..100]
+ a.combination(1) { a.clear }
+ a = [*0..100]
+ a.repeated_combination(1) { a.clear }
+ }
+ end
+
+ def test_product2
+ a = (0..100).to_a
+ assert_raise(RangeError) do
+ a.product(a, a, a, a, a, a, a, a, a, a)
+ end
+ assert_nothing_raised(RangeError) do
+ a.product(a, a, a, a, a, a, a, a, a, a) { break }
+ end
+ end
+
+ def test_initialize2
+ a = [1] * 1000
+ a.instance_eval { initialize }
+ assert_equal([], a)
+ end
+
+ def test_shift_shared_ary
+ a = (1..100).to_a
+ b = []
+ b.replace(a)
+ assert_equal((1..10).to_a, a.shift(10))
+ assert_equal((11..100).to_a, a)
+
+ a = (1..30).to_a
+ assert_equal((1..3).to_a, a.shift(3))
+ # occupied
+ assert_equal((4..6).to_a, a.shift(3))
+ end
+
+ def test_replace_shared_ary
+ a = [1] * 100
+ b = []
+ b.replace(a)
+ a.replace([1, 2, 3])
+ assert_equal([1, 2, 3], a)
+ assert_equal([1] * 100, b)
+ end
+
+ def test_fill_negative_length
+ a = (1..10).to_a
+ a.fill(:foo, 5, -3)
+ assert_equal((1..10).to_a, a)
+ end
+
+ def test_slice_frozen_array
+ a = [1,2,3,4,5].freeze
+ assert_equal([1,2,3,4], a[0,4])
+ assert_equal([2,3,4,5], a[1,4])
+ end
+
+ def test_sort_by!
+ a = [1,3,5,2,4]
+ a.sort_by! {|x| -x }
+ assert_equal([5,4,3,2,1], a)
+ end
+
+ def test_rotate
+ a = [1,2,3,4,5].freeze
+ assert_equal([2,3,4,5,1], a.rotate)
+ assert_equal([5,1,2,3,4], a.rotate(-1))
+ assert_equal([3,4,5,1,2], a.rotate(2))
+ assert_equal([4,5,1,2,3], a.rotate(-2))
+ assert_equal([4,5,1,2,3], a.rotate(13))
+ assert_equal([3,4,5,1,2], a.rotate(-13))
+ a = [1].freeze
+ assert_equal([1], a.rotate)
+ assert_equal([1], a.rotate(2))
+ assert_equal([1], a.rotate(-4))
+ assert_equal([1], a.rotate(13))
+ assert_equal([1], a.rotate(-13))
+ a = [].freeze
+ assert_equal([], a.rotate)
+ assert_equal([], a.rotate(2))
+ assert_equal([], a.rotate(-4))
+ assert_equal([], a.rotate(13))
+ assert_equal([], a.rotate(-13))
+ a = [1,2,3]
+ assert_raise(ArgumentError) { a.rotate(1, 1) }
+ assert_equal([1,2,3,4,5].rotate(2**31-1), [1,2,3,4,5].rotate(2**31-0.1))
+ assert_equal([1,2,3,4,5].rotate(-2**31), [1,2,3,4,5].rotate(-2**31-0.9))
+ end
+
+ def test_rotate!
+ a = [1,2,3,4,5]
+ assert_equal([2,3,4,5,1], a.rotate!)
+ assert_equal([2,3,4,5,1], a)
+ assert_equal([4,5,1,2,3], a.rotate!(2))
+ assert_equal([5,1,2,3,4], a.rotate!(-4))
+ assert_equal([3,4,5,1,2], a.rotate!(13))
+ assert_equal([5,1,2,3,4], a.rotate!(-13))
+ a = [1]
+ assert_equal([1], a.rotate!)
+ assert_equal([1], a.rotate!(2))
+ assert_equal([1], a.rotate!(-4))
+ assert_equal([1], a.rotate!(13))
+ assert_equal([1], a.rotate!(-13))
+ a = []
+ assert_equal([], a.rotate!)
+ assert_equal([], a.rotate!(2))
+ assert_equal([], a.rotate!(-4))
+ assert_equal([], a.rotate!(13))
+ assert_equal([], a.rotate!(-13))
+ a = [].freeze
+ assert_raise_with_message(FrozenError, /can\'t modify frozen/) {a.rotate!}
+ a = [1,2,3]
+ assert_raise(ArgumentError) { a.rotate!(1, 1) }
+ end
+
+ def test_bsearch_typechecks_return_values
+ assert_raise(TypeError) do
+ [1, 2, 42, 100, 666].bsearch{ "not ok" }
+ end
+ c = eval("class C\u{309a 26a1 26c4 1f300};self;end")
+ assert_raise_with_message(TypeError, /C\u{309a 26a1 26c4 1f300}/) do
+ [0,1].bsearch {c.new}
+ end
+ assert_equal [1, 2, 42, 100, 666].bsearch{}, [1, 2, 42, 100, 666].bsearch{false}
+ end
+
+ def test_bsearch_with_no_block
+ enum = [1, 2, 42, 100, 666].bsearch
+ assert_nil enum.size
+ assert_equal 42, enum.each{|x| x >= 33 }
+ end
+
+ def test_bsearch_in_find_minimum_mode
+ a = [0, 4, 7, 10, 12]
+ assert_equal(4, a.bsearch {|x| x >= 4 })
+ assert_equal(7, a.bsearch {|x| x >= 6 })
+ assert_equal(0, a.bsearch {|x| x >= -1 })
+ assert_equal(nil, a.bsearch {|x| x >= 100 })
+ end
+
+ def test_bsearch_in_find_any_mode
+ a = [0, 4, 7, 10, 12]
+ assert_include([4, 7], a.bsearch {|x| 1 - x / 4 })
+ assert_equal(nil, a.bsearch {|x| 4 - x / 2 })
+ assert_equal(nil, a.bsearch {|x| 1 })
+ assert_equal(nil, a.bsearch {|x| -1 })
+
+ assert_include([4, 7], a.bsearch {|x| (1 - x / 4) * (2**100) })
+ assert_equal(nil, a.bsearch {|x| 1 * (2**100) })
+ assert_equal(nil, a.bsearch {|x| (-1) * (2**100) })
+
+ assert_equal(4, a.bsearch {|x| (4 - x).to_r })
+
+ assert_include([4, 7], a.bsearch {|x| (2**100).coerce((1 - x / 4) * (2**100)).first })
+ end
+
+ def test_bsearch_index_typechecks_return_values
+ assert_raise(TypeError) do
+ [1, 2, 42, 100, 666].bsearch_index {"not ok"}
+ end
+ assert_equal [1, 2, 42, 100, 666].bsearch_index {}, [1, 2, 42, 100, 666].bsearch_index {false}
+ end
+
+ def test_bsearch_index_with_no_block
+ enum = [1, 2, 42, 100, 666].bsearch_index
+ assert_nil enum.size
+ assert_equal 2, enum.each{|x| x >= 33 }
+ end
+
+ def test_bsearch_index_in_find_minimum_mode
+ a = [0, 4, 7, 10, 12]
+ assert_equal(1, a.bsearch_index {|x| x >= 4 })
+ assert_equal(2, a.bsearch_index {|x| x >= 6 })
+ assert_equal(0, a.bsearch_index {|x| x >= -1 })
+ assert_equal(nil, a.bsearch_index {|x| x >= 100 })
+ end
+
+ def test_bsearch_index_in_find_any_mode
+ a = [0, 4, 7, 10, 12]
+ assert_include([1, 2], a.bsearch_index {|x| 1 - x / 4 })
+ assert_equal(nil, a.bsearch_index {|x| 4 - x / 2 })
+ assert_equal(nil, a.bsearch_index {|x| 1 })
+ assert_equal(nil, a.bsearch_index {|x| -1 })
+
+ assert_include([1, 2], a.bsearch_index {|x| (1 - x / 4) * (2**100) })
+ assert_equal(nil, a.bsearch_index {|x| 1 * (2**100) })
+ assert_equal(nil, a.bsearch_index {|x| (-1) * (2**100) })
+
+ assert_equal(1, a.bsearch_index {|x| (4 - x).to_r })
+
+ assert_include([1, 2], a.bsearch_index {|x| (2**100).coerce((1 - x / 4) * (2**100)).first })
+ end
+
+ def test_shared_marking
+ reduce = proc do |s|
+ s.gsub(/(verify_internal_consistency_reachable_i:\sWB\smiss\s\S+\s\(T_ARRAY\)\s->\s)\S+\s\((proc|T_NONE)\)\n
+ \K(?:\1\S+\s\(\2\)\n)*/x) do
+ "...(snip #{$&.count("\n")} lines)...\n"
+ end
+ end
+ begin
+ assert_normal_exit(<<-EOS, '[Bug #9718]', timeout: 5, stdout_filter: reduce)
+ queue = []
+ 50.times do
+ 10_000.times do
+ queue << lambda{}
+ end
+ GC.start(full_mark: false, immediate_sweep: true)
+ GC.verify_internal_consistency
+ queue.shift.call
+ end
+ EOS
+ rescue Timeout::Error => e
+ omit e.message
+ end
+ end
+
+ sizeof_long = [0].pack("l!").size
+ sizeof_voidp = [""].pack("p").size
+ if sizeof_long < sizeof_voidp
+ ARY_MAX = (1<<(8*sizeof_long-1)) / sizeof_voidp - 1
+ Bug11235 = '[ruby-dev:49043] [Bug #11235]'
+
+ def test_push_over_ary_max
+ assert_separately(['-', ARY_MAX.to_s, Bug11235], "#{<<~"begin;"}\n#{<<~'end;'}", timeout: 120)
+ begin;
+ a = Array.new(ARGV[0].to_i)
+ assert_raise(IndexError, ARGV[1]) {0x1000.times {a.push(1)}}
+ end;
+ end
+
+ def test_unshift_over_ary_max
+ assert_separately(['-', ARY_MAX.to_s, Bug11235], "#{<<~"begin;"}\n#{<<~'end;'}")
+ begin;
+ a = Array.new(ARGV[0].to_i)
+ assert_raise(IndexError, ARGV[1]) {0x1000.times {a.unshift(1)}}
+ end;
+ end
+
+ def test_splice_over_ary_max
+ assert_separately(['-', ARY_MAX.to_s, Bug11235], "#{<<~"begin;"}\n#{<<~'end;'}")
+ begin;
+ a = Array.new(ARGV[0].to_i)
+ assert_raise(IndexError, ARGV[1]) {a[0, 0] = Array.new(0x1000)}
+ end;
+ end
+ end
+
+ def test_dig
+ h = @cls[@cls[{a: 1}], 0]
+ assert_equal(1, h.dig(0, 0, :a))
+ assert_nil(h.dig(2, 0))
+ assert_raise(TypeError) {h.dig(1, 0)}
+ end
+
+ FIXNUM_MIN = RbConfig::LIMITS['FIXNUM_MIN']
+ FIXNUM_MAX = RbConfig::LIMITS['FIXNUM_MAX']
+
+ def assert_typed_equal(e, v, cls, msg=nil)
+ assert_kind_of(cls, v, msg)
+ assert_equal(e, v, msg)
+ end
+
+ def assert_int_equal(e, v, msg=nil)
+ assert_typed_equal(e, v, Integer, msg)
+ end
+
+ def assert_rational_equal(e, v, msg=nil)
+ assert_typed_equal(e, v, Rational, msg)
+ end
+
+ def assert_float_equal(e, v, msg=nil)
+ assert_typed_equal(e, v, Float, msg)
+ end
+
+ def assert_complex_equal(e, v, msg=nil)
+ assert_typed_equal(e, v, Complex, msg)
+ end
+
+ def test_shrink_shared_array
+ assert_normal_exit(<<~'RUBY', '[Feature #20589]')
+ array = []
+ # Make sure the array is allocated
+ 10.times { |i| array << i }
+ # Simulate a C extension using OBJ_FREEZE
+ Object.instance_method(:freeze).bind_call(array)
+ array.dup
+ RUBY
+ end
+
+ def test_sum
+ assert_int_equal(0, [].sum)
+ assert_int_equal(3, [3].sum)
+ assert_int_equal(8, [3, 5].sum)
+ assert_int_equal(15, [3, 5, 7].sum)
+ assert_rational_equal(8r, [3, 5r].sum)
+ assert_float_equal(15.0, [3, 5, 7.0].sum)
+ assert_float_equal(15.0, [3, 5r, 7.0].sum)
+ assert_complex_equal(8r + 1i, [3, 5r, 1i].sum)
+ assert_complex_equal(15.0 + 1i, [3, 5r, 7.0, 1i].sum)
+
+ assert_int_equal(2*FIXNUM_MAX, Array.new(2, FIXNUM_MAX).sum)
+ assert_int_equal(2*(FIXNUM_MAX+1), Array.new(2, FIXNUM_MAX+1).sum)
+ assert_int_equal(10*FIXNUM_MAX, Array.new(10, FIXNUM_MAX).sum)
+ assert_int_equal(0, ([FIXNUM_MAX, 1, -FIXNUM_MAX, -1]*10).sum)
+ assert_int_equal(FIXNUM_MAX*10, ([FIXNUM_MAX+1, -1]*10).sum)
+ assert_int_equal(2*FIXNUM_MIN, Array.new(2, FIXNUM_MIN).sum)
+
+ assert_float_equal(0.0, [].sum(0.0))
+ assert_float_equal(3.0, [3].sum(0.0))
+ assert_float_equal(3.5, [3].sum(0.5))
+ assert_float_equal(8.5, [3.5, 5].sum)
+ assert_float_equal(10.5, [2, 8.5].sum)
+ assert_float_equal((FIXNUM_MAX+1).to_f, [FIXNUM_MAX, 1, 0.0].sum)
+ assert_float_equal((FIXNUM_MAX+1).to_f, [0.0, FIXNUM_MAX+1].sum)
+
+ assert_rational_equal(3/2r, [1/2r, 1].sum)
+ assert_rational_equal(5/6r, [1/2r, 1/3r].sum)
+
+ assert_equal(2.0+3.0i, [2.0, 3.0i].sum)
+
+ assert_int_equal(13, [1, 2].sum(10))
+ assert_int_equal(16, [1, 2].sum(10) {|v| v * 2 })
+
+ yielded = []
+ three = SimpleDelegator.new(3)
+ ary = [1, 2.0, three]
+ assert_float_equal(12.0, ary.sum {|x| yielded << x; x * 2 })
+ assert_equal(ary, yielded)
+
+ assert_raise(TypeError) { [Object.new].sum }
+
+ large_number = 100000000
+ small_number = 1e-9
+ until (large_number + small_number) == large_number
+ small_number /= 10
+ end
+ assert_float_equal(large_number+(small_number*10), [large_number, *[small_number]*10].sum)
+ assert_float_equal(large_number+(small_number*10), [large_number/1r, *[small_number]*10].sum)
+ assert_float_equal(large_number+(small_number*11), [small_number, large_number/1r, *[small_number]*10].sum)
+ assert_float_equal(small_number, [large_number, small_number, -large_number].sum)
+ assert_equal(+Float::INFINITY, [+Float::INFINITY].sum)
+ assert_equal(+Float::INFINITY, [0.0, +Float::INFINITY].sum)
+ assert_equal(+Float::INFINITY, [+Float::INFINITY, 0.0].sum)
+ assert_equal(-Float::INFINITY, [-Float::INFINITY].sum)
+ assert_equal(-Float::INFINITY, [0.0, -Float::INFINITY].sum)
+ assert_equal(-Float::INFINITY, [-Float::INFINITY, 0.0].sum)
+ assert_predicate([-Float::INFINITY, Float::INFINITY].sum, :nan?)
+
+ assert_equal("abc", ["a", "b", "c"].sum(""))
+ assert_equal([1, [2], 3], [[1], [[2]], [3]].sum([]))
+
+ assert_raise(TypeError) {[0].sum("")}
+ assert_raise(TypeError) {[1].sum("")}
+ end
+
+ def test_big_array_literal_with_kwsplat
+ lit = "["
+ 10000.times { lit << "{}," }
+ lit << "**{}]"
+
+ assert_equal(10000, eval(lit).size)
+ end
+
+ def test_array_safely_modified_by_sort_block
+ var_0 = (1..70).to_a
+ var_0.sort! do |var_0_block_129, var_1_block_129|
+ var_0.pop
+ var_1_block_129 <=> var_0_block_129
+ end.shift(3)
+ assert_equal((1..67).to_a.reverse, var_0)
+ end
+
+ def test_find
+ ary = [1, 2, 3, 4, 5]
+ assert_equal(2, ary.find {|x| x % 2 == 0 })
+ assert_equal(nil, ary.find {|x| false })
+ assert_equal(:foo, ary.find(proc { :foo }) {|x| false })
+ end
+
+ def test_rfind
+ ary = [1, 2, 3, 4, 5]
+ assert_equal(4, ary.rfind {|x| x % 2 == 0 })
+ assert_equal(1, ary.rfind {|x| x < 2 })
+ assert_equal(5, ary.rfind {|x| x > 4 })
+ assert_equal(nil, ary.rfind {|x| false })
+ assert_equal(:foo, ary.rfind(proc { :foo }) {|x| false })
+ assert_equal(nil, ary.rfind {|x| ary.clear; false })
+ end
+
+ private
+ def need_continuation
+ unless respond_to?(:callcc, true)
+ EnvUtil.suppress_warning {require 'continuation'}
+ end
+ omit 'requires callcc support' unless respond_to?(:callcc, true)
+ end
+
+ def random_generator(&block)
+ class << block
+ alias rand call
+ end
+ block
+ end
+end
+
+class TestArraySubclass < TestArray
+ def setup
+ @verbose = $VERBOSE
+ @cls = Class.new(Array)
+ end
+
+ def test_to_a
+ a = @cls[ 1, 2, 3 ]
+ a_id = a.__id__
+ assert_equal_instance([1, 2, 3], a.to_a)
+ assert_not_equal(a_id, a.to_a.__id__)
+ end
+
+ def test_array_subclass
+ assert_equal(Array, @cls[1,2,3].uniq.class, "[ruby-dev:34581]")
+ assert_equal(Array, @cls[1,2][0,1].class) # embedded
+ assert_equal(Array, @cls[*(1..100)][1..99].class) #not embedded
+ end
+end
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