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-rw-r--r--trunk/test/ruby/test_range.rb270
1 files changed, 270 insertions, 0 deletions
diff --git a/trunk/test/ruby/test_range.rb b/trunk/test/ruby/test_range.rb
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+require 'test/unit'
+
+class TestRange < Test::Unit::TestCase
+ def test_range_string
+ # XXX: Is this really the test of Range?
+ assert_equal([], ("a" ... "a").to_a)
+ assert_equal(["a"], ("a" .. "a").to_a)
+ assert_equal(["a"], ("a" ... "b").to_a)
+ assert_equal(["a", "b"], ("a" .. "b").to_a)
+ end
+
+ def test_evaluation_order
+ arr = [1,2]
+ r = (arr.shift)..(arr.shift)
+ assert_equal(1..2, r, "[ruby-dev:26383]")
+ end
+
+ class DuckRange
+ def initialize(b,e,excl=false)
+ @begin = b
+ @end = e
+ @excl = excl
+ end
+ attr_reader :begin, :end
+
+ def exclude_end?
+ @excl
+ end
+ end
+
+ def test_duckrange
+ assert_equal("bc", "abcd"[DuckRange.new(1,2)])
+ end
+
+ def test_min
+ assert_equal(1, (1..2).min)
+ assert_equal(nil, (2..1).min)
+ assert_equal(1, (1...2).min)
+
+ assert_equal(1.0, (1.0..2.0).min)
+ assert_equal(nil, (2.0..1.0).min)
+ assert_equal(1, (1.0...2.0).min)
+
+ assert_equal(0, (0..0).min)
+ assert_equal(nil, (0...0).min)
+ end
+
+ def test_max
+ assert_equal(2, (1..2).max)
+ assert_equal(nil, (2..1).max)
+ assert_equal(1, (1...2).max)
+
+ assert_equal(2.0, (1.0..2.0).max)
+ assert_equal(nil, (2.0..1.0).max)
+ assert_raise(TypeError) { (1.0...2.0).max }
+
+ assert_equal(-0x80000002, ((-0x80000002)...(-0x80000001)).max)
+
+ assert_equal(0, (0..0).max)
+ assert_equal(nil, (0...0).max)
+ end
+
+ def test_initialize_twice
+ r = eval("1..2")
+ assert_raise(NameError) { r.instance_eval { initialize 3, 4 } }
+ end
+
+ def test_uninitialized_range
+ r = Range.allocate
+ s = Marshal.dump(r)
+ r = Marshal.load(s)
+ assert_nothing_raised { r.instance_eval { initialize 5, 6} }
+ end
+
+ def test_bad_value
+ assert_raise(ArgumentError) { (1 .. :a) }
+ end
+
+ def test_exclude_end
+ assert(!((0..1).exclude_end?))
+ assert((0...1).exclude_end?)
+ end
+
+ def test_eq
+ r = (0..1)
+ assert(r == r)
+ assert(r == (0..1))
+ assert(r != 0)
+ assert(r != (1..2))
+ assert(r != (0..2))
+ assert(r != (0...1))
+ end
+
+ def test_eql
+ r = (0..1)
+ assert(r.eql?(r))
+ assert(r.eql?(0..1))
+ assert(!r.eql?(0))
+ assert(!r.eql?(1..2))
+ assert(!r.eql?(0..2))
+ assert(!r.eql?(0...1))
+ end
+
+ def test_hash
+ assert((0..1).hash.is_a?(Fixnum))
+ end
+
+ def test_step
+ a = []
+ (0..10).step {|x| a << x }
+ assert_equal([0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10], a)
+
+ a = []
+ (0..10).step(2) {|x| a << x }
+ assert_equal([0, 2, 4, 6, 8, 10], a)
+
+ assert_raise(ArgumentError) { (0..10).step(-1) { } }
+ assert_raise(ArgumentError) { (0..10).step(0) { } }
+
+ a = []
+ ("a" .. "z").step(2) {|x| a << x }
+ assert_equal(%w(a c e g i k m o q s u w y), a)
+
+ a = []
+ ("a" .. "z").step(2**32) {|x| a << x }
+ assert_equal(["a"], a)
+
+ a = []
+ (2**32-1 .. 2**32+1).step(2) {|x| a << x }
+ assert_equal([4294967295, 4294967297], a)
+ zero = (2**32).coerce(0).first
+ assert_raise(ArgumentError) { (2**32-1 .. 2**32+1).step(zero) { } }
+
+ o1 = Object.new
+ o2 = Object.new
+ def o1.<=>(x); -1; end
+ def o2.<=>(x); 0; end
+ assert_raise(TypeError) { (o1..o2).step(1) { } }
+
+ class << o1; self; end.class_eval do
+ define_method(:succ) { o2 }
+ end
+ a = []
+ (o1..o2).step(1) {|x| a << x }
+ assert_equal([o1, o2], a)
+
+ a = []
+ (o1...o2).step(1) {|x| a << x }
+ assert_equal([o1], a)
+
+ assert_nothing_raised("[ruby-dev:34557]") { (0..2).step(0.5) {|x| } }
+
+ a = []
+ (0..2).step(0.5) {|x| a << x }
+ assert_equal([0, 0.5, 1.0, 1.5, 2.0], a)
+
+ a = []
+ (0x40000000..0x40000002).step(0.5) {|x| a << x }
+ assert_equal([1073741824, 1073741824.5, 1073741825.0, 1073741825.5, 1073741826], a)
+
+ o = Object.new
+ def o.to_int() 1 end
+ assert_nothing_raised("[ruby-dev:34558]") { (0..2).step(o) {|x| } }
+ end
+
+ def test_each
+ a = []
+ (0..10).each {|x| a << x }
+ assert_equal([0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10], a)
+
+ o1 = Object.new
+ o2 = Object.new
+ def o1.<=>(x); -1; end
+ def o2.<=>(x); 0; end
+ class << o1; self; end.class_eval do
+ define_method(:succ) { o2 }
+ end
+
+ r1 = (o1..o2)
+ r2 = (o1...o2)
+
+ a = []
+ r1.each {|x| a << x }
+ assert_equal([o1, o2], a)
+
+ a = []
+ r2.each {|x| a << x }
+ assert_equal([o1], a)
+
+ def o2.<=>(x); 1; end
+
+ a = []
+ r1.each {|x| a << x }
+ assert_equal([o1], a)
+
+ def o2.<=>(x); nil; end
+
+ a = []
+ r1.each {|x| a << x }
+ assert_equal([o1], a)
+
+ def o1.<=>(x); nil; end
+
+ a = []
+ r2.each {|x| a << x }
+ assert_equal([], a)
+ end
+
+ def test_begin_end
+ assert_equal(0, (0..1).begin)
+ assert_equal(1, (0..1).end)
+ end
+
+ def test_first_last
+ assert_equal([0, 1, 2], (0..10).first(3))
+ assert_equal([8, 9, 10], (0..10).last(3))
+ end
+
+ def test_to_s
+ assert_equal("0..1", (0..1).to_s)
+ assert_equal("0...1", (0...1).to_s)
+ end
+
+ def test_inspect
+ assert_equal("0..1", (0..1).inspect)
+ assert_equal("0...1", (0...1).inspect)
+ end
+
+ def test_eqq
+ assert((0..10) === 5)
+ assert(!((0..10) === 11))
+ end
+
+ def test_include
+ assert(("a".."z").include?("c"))
+ assert(!(("a".."z").include?("5")))
+ assert(("a"..."z").include?("y"))
+ assert(!(("a"..."z").include?("z")))
+ assert(!(("a".."z").include?("cc")))
+ assert((0...10).include?(5))
+ end
+
+ def test_cover
+ assert(("a".."z").cover?("c"))
+ assert(!(("a".."z").cover?("5")))
+ assert(("a"..."z").cover?("y"))
+ assert(!(("a"..."z").cover?("z")))
+ assert(("a".."z").cover?("cc"))
+ end
+
+ def test_beg_len
+ o = Object.new
+ assert_raise(TypeError) { [][o] }
+ def o.begin; -10; end
+ assert_raise(TypeError) { [][o] }
+ def o.end; 0; end
+ assert_raise(NoMethodError) { [][o] }
+ def o.exclude_end?; false; end
+ assert_nil([0][o])
+ assert_raise(RangeError) { [0][o] = 1 }
+ def o.begin; 10; end
+ def o.end; 10; end
+ assert_nil([0][o])
+ def o.begin; 0; end
+ assert_equal([0], [0][o])
+ def o.begin; 2; end
+ def o.end; 0; end
+ assert_equal([], [0, 1, 2][o])
+ end
+end
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