require 'test/unit' require_relative 'envutil' class TestArray < Test::Unit::TestCase def setup @verbose = $VERBOSE $VERBOSE = nil @cls = Array end def teardown $VERBOSE = @verbose 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]) x[0, 2] = 10 assert(x[0] == 10 && x[1] == 2) x[0, 0] = -1 assert(x[0] == -1 && x[1] == 10) x[-1, 1] = 20 assert(x[-1] == 20 && x.pop == 20) 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) 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(":")) *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_equal(5, x.last) assert_equal([5], x.last(1)) assert_equal([3, 4, 5], x.last(3)) assert_equal(1, x.shift) assert_equal([2, 3, 4], x.shift(3)) assert_equal([5], x) 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_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_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}) 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_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]) # Ruby 1.8 feature change #assert_equal(@cls[1], @cls[1, 2, 1, 3, 1, 4, 1, 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]) a = @cls[] 1000.times { a << 1 } assert_equal(1000, a.length) #assert_equal(@cls[1], a - @cls[2]) assert_equal(@cls[1] * 1000, a - @cls[2]) #assert_equal(@cls[1], @cls[1, 2, 1] - @cls[2]) 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_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[10, 11, 12], a[-91..-89]) assert_nil(a[10, -3]) # Ruby 1.8 feature change: # Array#[size..x] returns [] instead of nil. #assert_nil(a[10..7]) 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) # Ruby 1.8 feature change: # assigning nil does not remove elements. =begin a = @cls[*(0..99).to_a] assert_equal(nil, a[0,1] = nil) assert_equal(@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[*(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], a) a = @cls[*(0..99).to_a] assert_equal(nil, a[-10, 10] = nil) assert_equal(@cls[*(0..89).to_a], a) a = @cls[*(0..99).to_a] assert_equal(nil, a[0,1000] = nil) assert_equal(@cls[] , a) a = @cls[*(0..99).to_a] assert_equal(nil, a[10..19] = nil) assert_equal(@cls[*(0..9).to_a] + @cls[*(20..99).to_a], a) =end 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) end def test_assoc a1 = @cls[*%w( cat feline )] a2 = @cls[*%w( dog canine )] a3 = @cls[*%w( mule asinine )] a = @cls[ a1, a2, a3 ] assert_equal(a1, a.assoc('cat')) assert_equal(a3, a.assoc('mule')) 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 taint in [ false, true ] for untrust in [ false, true ] for frozen in [ false, true ] a = @cls[*(0..99).to_a] a.taint if taint a.untrust if untrust a.freeze if frozen b = a.clone assert_equal(a, b) assert_not_equal(a.__id__, b.__id__) assert_equal(a.frozen?, b.frozen?) assert_equal(a.untrusted?, b.untrusted?) assert_equal(a.tainted?, b.tainted?) end end end end def test_collect a = @cls[ 1, 'cat', 1..1 ] assert_equal([ Fixnum, String, Range], a.collect {|e| e.class} ) assert_equal([ 99, 99, 99], a.collect { 99 } ) assert_equal([], @cls[].collect { 99 }) # Ruby 1.9 feature change: # Enumerable#collect without block returns an Enumerator. #assert_equal([1, 2, 3], @cls[1, 2, 3].collect) assert_kind_of Enumerator, @cls[1, 2, 3].collect end # also update map! def test_collect! a = @cls[ 1, 'cat', 1..1 ] assert_equal([ Fixnum, String, Range], a.collect! {|e| e.class} ) assert_equal([ Fixnum, 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, 2, 3, 4].concat(@cls[])) 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) assert_raise(TypeError) { [0].concat(:foo) } assert_raise(RuntimeError) { [0].freeze.concat(:foo) } 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, a.count(1) {|x| x % 2 == 1 }) assert_raise(ArgumentError) { a.count(0, 1) } 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) 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; assert_equal(a[0], i) || true if i < 7}) assert_equal(@cls[7, 8, 9, 10], a, bug2545) end def test_dup for taint in [ false, true ] for frozen in [ false, true ] a = @cls[*(0..99).to_a] a.taint if taint a.freeze if frozen b = a.dup assert_equal(a, b) assert_not_equal(a.__id__, b.__id__) assert_equal(false, b.frozen?) assert_equal(a.tainted?, b.tainted?) end 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_equal(a[i], e) 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_equal(i, ind) 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(@cls[1, 2, 3, 4, 5, 6], a4.flatten) assert_equal(@cls[ a1, a3], a4) a5 = @cls[ a1, @cls[], a3 ] assert_equal(@cls[1, 2, 3, 4, 5, 6], a5.flatten) assert_equal(@cls[], @cls[].flatten) assert_equal(@cls[], @cls[@cls[@cls[@cls[],@cls[]],@cls[@cls[]],@cls[]],@cls[@cls[@cls[]]]].flatten) assert_raise(TypeError, "[ruby-dev:31197]") { [[]].flatten("") } a6 = @cls[[1, 2], 3] a6.taint a6.untrust a7 = a6.flatten assert_equal(true, a7.tainted?) assert_equal(true, a7.untrusted?) a8 = @cls[[1, 2], 3] a9 = a8.flatten(0) assert_equal(a8, a9) assert_not_same(a8, a9) 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) assert_equal(@cls[], @cls[].flatten) assert_equal(@cls[], @cls[@cls[@cls[@cls[],@cls[]],@cls[@cls[]],@cls[]],@cls[@cls[@cls[]]]].flatten) assert_nil(@cls[].flatten!(0), '[ruby-core:23382]') end def test_flatten_with_callcc respond_to?(:callcc, true) or require '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_permutation_with_callcc respond_to?(:callcc, true) or require '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 respond_to?(:callcc, true) or require '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 respond_to?(:callcc, true) or require '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 respond_to?(:callcc, true) or require '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 respond_to?(:callcc, true) or require '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) 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_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, 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 $, = "" a = @cls[] assert_equal("", a.join) assert_equal("", a.join(',')) assert_equal(Encoding::US_ASCII, a.join.encoding) $, = "" a = @cls[1, 2] assert_equal("12", a.join) assert_equal("12", a.join(nil)) assert_equal("1,2", a.join(',')) $, = "" a = @cls[1, 2, 3] assert_equal("123", a.join) assert_equal("123", a.join(nil)) assert_equal("1,2,3", a.join(',')) $, = ":" a = @cls[1, 2, 3] assert_equal("1:2:3", a.join) assert_equal("1:2:3", a.join(nil)) assert_equal("1,2,3", a.join(',')) $, = "" a = @cls[1, 2, 3] a.taint a.untrust s = a.join assert_equal(true, s.tainted?) assert_equal(true, s.untrusted?) bug5902 = '[ruby-core:42161]' sep = ":".taint.untrust s = @cls[].join(sep) assert_equal(false, s.tainted?, bug5902) assert_equal(false, s.untrusted?, bug5902) s = @cls[1].join(sep) assert_equal(false, s.tainted?, bug5902) assert_equal(false, s.untrusted?, bug5902) s = @cls[1, 2].join(sep) assert_equal(true, s.tainted?, bug5902) assert_equal(true, s.untrusted?, bug5902) e = ''.force_encoding('EUC-JP') u = ''.force_encoding('UTF-8') assert_equal(Encoding::US_ASCII, [[]].join.encoding) assert_equal(Encoding::US_ASCII, [1, [u]].join.encoding) assert_equal(Encoding::UTF_8, [u, [e]].join.encoding) assert_equal(Encoding::UTF_8, [u, [1]].join.encoding) bug5379 = '[ruby-core:39776]' assert_equal(Encoding::US_ASCII, [[], u, nil].join.encoding, bug5379) assert_equal(Encoding::UTF_8, [[], "\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[ Fixnum, String, Range], a.map! {|e| e.class} ) assert_equal(@cls[ Fixnum, 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 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/) =begin skipping "Not tested: D,d & double-precision float, native format\\ E & double-precision float, little-endian byte order\\ e & single-precision float, little-endian byte order\\ F,f & single-precision float, native format\\ G & double-precision float, network (big-endian) byte order\\ g & single-precision float, network (big-endian) byte order\\ I & unsigned integer\\ i & integer\\ L & unsigned long\\ l & long\\ N & long, network (big-endian) byte order\\ n & short, network (big-endian) byte-order\\ P & pointer to a structure (fixed-length string)\\ p & pointer to a null-terminated string\\ S & unsigned short\\ s & short\\ V & long, little-endian byte order\\ v & short, little-endian byte order\\ X & back up a byte\\ x & null byte\\ Z & ASCII string (null padded, count is width)\\ " =end 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_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)) # Ruby 1.8 feature: # Array#push accepts any number of arguments. #assert_raise(ArgumentError, "a.push()") { a.push() } 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 a1 = @cls[*%w( cat feline )] a2 = @cls[*%w( dog canine )] a3 = @cls[*%w( mule asinine )] a = @cls[ a1, a2, a3 ] assert_equal(a1, a.rassoc('feline')) assert_equal(a3, a.rassoc('asinine')) 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; assert_equal(a[0], i) || true if i < 7}) assert_equal(@cls[7, 8, 9, 10], a, bug2545) 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(RuntimeError) { fa.replace(fa) } assert_raise(ArgumentError) { fa.replace() } assert_raise(TypeError) { a.replace(42) } assert_raise(RuntimeError) { fa.replace(42) } 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) # Ruby 1.8 feature change: # Array#reverse always returns self. #assert_nil(@cls[].reverse!) 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| 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, a.rindex(99) {|x| x == [1,2,3] }) 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(@cls[1], a.slice(0,1)) assert_equal(@cls[100], a.slice(99,1)) assert_equal(@cls[], a.slice(100,1)) assert_equal(@cls[100], a.slice(99,100)) assert_equal(@cls[100], a.slice(-1,1)) assert_equal(@cls[99], a.slice(-2,1)) assert_equal(@cls[10, 11, 12], a.slice(9, 3)) assert_equal(@cls[10, 11, 12], a.slice(-91, 3)) assert_nil(a.slice(-101, 2)) assert_equal(@cls[1], a.slice(0..0)) assert_equal(@cls[100], a.slice(99..99)) assert_equal(@cls[], a.slice(100..100)) assert_equal(@cls[100], a.slice(99..200)) assert_equal(@cls[100], a.slice(-1..-1)) assert_equal(@cls[99], a.slice(-2..-2)) assert_equal(@cls[10, 11, 12], a.slice(9..11)) assert_equal(@cls[10, 11, 12], a.slice(-91..-89)) assert_nil(a.slice(-101..-1)) assert_nil(a.slice(10, -3)) # Ruby 1.8 feature change: # Array#slice[size..x] always returns []. #assert_nil(a.slice(10..7)) assert_equal @cls[], a.slice(10..7) 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] assert_equal(@cls[3,4], a.slice!(2,2)) assert_equal(@cls[1, 2, 5], a) a = @cls[1, 2, 3, 4, 5] assert_equal(@cls[4,5], a.slice!(-2,2)) assert_equal(@cls[1, 2, 3], a) a = @cls[1, 2, 3, 4, 5] assert_equal(@cls[3,4], a.slice!(2..3)) 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_raise(ArgumentError) { @cls[1].slice! } assert_raise(ArgumentError) { @cls[1].slice!(0, 0, 0) } 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_sort_with_callcc respond_to?(:callcc, true) or require '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 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 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_match(/foo_bar/, assert_raise(NoMethodError) {a.concat(o)}.message) end def test_to_s $, = "" a = @cls[] assert_equal("[]", a.to_s) $, = "" a = @cls[1, 2] assert_equal("[1, 2]", a.to_s) $, = "" a = @cls[1, 2, 3] assert_equal("[1, 2, 3]", a.to_s) $, = ":" a = @cls[1, 2, 3] assert_equal("[1, 2, 3]", a.to_s) ensure $, = nil 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) 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) 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(RuntimeError) { 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 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) 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_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]) end def test_combination assert_equal(@cls[[]], @cls[1,2,3,4].combination(0).to_a) assert_equal(@cls[[1],[2],[3],[4]], @cls[1,2,3,4].combination(1).to_a) assert_equal(@cls[[1,2],[1,3],[1,4],[2,3],[2,4],[3,4]], @cls[1,2,3,4].combination(2).to_a) assert_equal(@cls[[1,2,3],[1,2,4],[1,3,4],[2,3,4]], @cls[1,2,3,4].combination(3).to_a) assert_equal(@cls[[1,2,3,4]], @cls[1,2,3,4].combination(4).to_a) assert_equal(@cls[], @cls[1,2,3,4].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 } assert(a.all?{|x| !x.include?(0) }) end def test_permutation a = @cls[1,2,3] 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_repeated_permutation a = @cls[1,2] 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(a.all?{|x| !x.include?(0) }) end def test_repeated_combination a = @cls[1,2,3] 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{|a|a.sort}.sort, "edcba".each_char.to_a.repeated_combination(5).map{|a|a.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(a.all?{|x| !x.include?(0) }) end def test_take assert_equal([1,2,3], [1,2,3,4,5,0].take(3)) assert_raise(ArgumentError, '[ruby-dev:34123]') { [1,2].take(-1) } assert_equal([1,2], [1,2].take(1000000000), '[ruby-dev:34123]') end def test_take_while assert_equal([1,2], [1,2,3,4,5,0].take_while {|i| i < 3 }) end def test_drop assert_equal([4,5,0], [1,2,3,4,5,0].drop(3)) assert_raise(ArgumentError, '[ruby-dev:34123]') { [1,2].drop(-1) } assert_equal([], [1,2].drop(1000000000), '[ruby-dev:34123]') end def test_drop_while assert_equal([3,4,5,0], [1,2,3,4,5,0].drop_while {|i| i < 3 }) end def test_modify_check a = [] a.freeze assert_raise(RuntimeError) { a.shift } a = [1, 2] assert_raise(SecurityError) do Thread.new do $SAFE = 4 a.shift end.value end 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_nothing_raised { 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], 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 } 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(RuntimeError) { [0].freeze[:foo] = 0 } end def test_first2 assert_equal([0], [0].first(2)) assert_raise(ArgumentError) { [0].first(-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) end def test_unshift_error assert_raise(RuntimeError) { [].freeze.unshift('cat') } assert_raise(RuntimeError) { [].freeze.unshift() } end def test_aref assert_raise(ArgumentError) { [][0, 0, 0] } end def test_fetch assert_equal(1, [].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_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_equal([0, 1, 2], a.insert(-1, 2)) assert_equal([0, 1, 3, 2], a.insert(-2, 3)) assert_raise(RuntimeError) { [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_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(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.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) 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_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, NoMethodError) {%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_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_hash2 a = [] a << a assert_equal([[a]].hash, a.hash) assert_not_equal([a, a].hash, a.hash) # Implementation dependent end def test_flatten_error a = [] a << a assert_raise(ArgumentError) { a.flatten } f = [].freeze assert_raise(ArgumentError) { a.flatten!(1, 2) } assert_raise(TypeError) { a.flatten!(:foo) } assert_raise(ArgumentError) { f.flatten!(1, 2) } assert_raise(RuntimeError) { f.flatten! } assert_raise(RuntimeError) { 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 end def test_shuffle_random gen = proc do 10000000 end class << gen alias rand call end assert_raise(RangeError) { [*0..2].shuffle(random: gen) } ary = (0...10000).to_a gen = proc do ary.replace([]) 0.5 end class << gen alias rand call end assert_raise(RuntimeError) {ary.shuffle!(random: gen)} 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 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 assert_raise(ArgumentError, '[ruby-core:23374]') {[1, 2].sample(-1)} 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_random ary = (0...10000).to_a assert_raise(ArgumentError) {ary.sample(1, 2, random: nil)} gen0 = proc do |max| (max+1)/2 end class << gen0 alias rand call end gen1 = proc do |max| ary.replace([]) (max+1)/2 end class << gen1 alias rand call 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_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) 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_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 class Array2 < Array end def test_array_subclass assert_equal(Array2, Array2[1,2,3].uniq.class, "[ruby-dev:34581]") assert_equal(Array2, Array2[1,2][0,1].class) # embeded assert_equal(Array2, Array2[*(1..100)][1..99].class) #not embeded end def test_inspect a = @cls[1, 2, 3] a.taint a.untrust s = a.inspect assert_equal(true, s.tainted?) assert_equal(true, s.untrusted?) 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) 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 e = assert_raise(RuntimeError) {a.rotate!} assert_match(/can't modify frozen/, e.message) a = [1,2,3] assert_raise(ArgumentError) { a.rotate!(1, 1) } end end