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1b541acd69
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@25050 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
297 lines
6.8 KiB
Ruby
297 lines
6.8 KiB
Ruby
require 'test/unit'
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require 'delegate'
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class TestRange < Test::Unit::TestCase
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def test_range_string
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# XXX: Is this really the test of Range?
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assert_equal([], ("a" ... "a").to_a)
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assert_equal(["a"], ("a" .. "a").to_a)
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assert_equal(["a"], ("a" ... "b").to_a)
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assert_equal(["a", "b"], ("a" .. "b").to_a)
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end
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def test_range_numeric_string
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assert_equal(["6", "7", "8"], ("6".."8").to_a, "[ruby-talk:343187]")
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assert_equal(["6", "7"], ("6"..."8").to_a)
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assert_equal(["9", "10"], ("9".."10").to_a)
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assert_equal(["09", "10"], ("09".."10").to_a, "[ruby-dev:39361]")
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assert_equal(["9", "10"], (SimpleDelegator.new("9").."10").to_a)
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assert_equal(["9", "10"], ("9"..SimpleDelegator.new("10")).to_a)
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end
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def test_range_symbol
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assert_equal([:a, :b], (:a .. :b).to_a)
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end
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def test_evaluation_order
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arr = [1,2]
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r = (arr.shift)..(arr.shift)
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assert_equal(1..2, r, "[ruby-dev:26383]")
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end
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class DuckRange
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def initialize(b,e,excl=false)
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@begin = b
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@end = e
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@excl = excl
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end
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attr_reader :begin, :end
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def exclude_end?
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@excl
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end
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end
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def test_duckrange
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assert_equal("bc", "abcd"[DuckRange.new(1,2)])
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end
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def test_min
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assert_equal(1, (1..2).min)
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assert_equal(nil, (2..1).min)
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assert_equal(1, (1...2).min)
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assert_equal(1.0, (1.0..2.0).min)
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assert_equal(nil, (2.0..1.0).min)
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assert_equal(1, (1.0...2.0).min)
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assert_equal(0, (0..0).min)
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assert_equal(nil, (0...0).min)
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end
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def test_max
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assert_equal(2, (1..2).max)
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assert_equal(nil, (2..1).max)
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assert_equal(1, (1...2).max)
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assert_equal(2.0, (1.0..2.0).max)
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assert_equal(nil, (2.0..1.0).max)
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assert_raise(TypeError) { (1.0...2.0).max }
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assert_equal(-0x80000002, ((-0x80000002)...(-0x80000001)).max)
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assert_equal(0, (0..0).max)
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assert_equal(nil, (0...0).max)
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end
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def test_initialize_twice
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r = eval("1..2")
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assert_raise(NameError) { r.instance_eval { initialize 3, 4 } }
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end
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def test_uninitialized_range
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r = Range.allocate
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s = Marshal.dump(r)
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r = Marshal.load(s)
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assert_nothing_raised { r.instance_eval { initialize 5, 6} }
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end
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def test_bad_value
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assert_raise(ArgumentError) { (1 .. :a) }
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end
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def test_exclude_end
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assert(!((0..1).exclude_end?))
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assert((0...1).exclude_end?)
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end
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def test_eq
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r = (0..1)
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assert(r == r)
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assert(r == (0..1))
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assert(r != 0)
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assert(r != (1..2))
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assert(r != (0..2))
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assert(r != (0...1))
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subclass = Class.new(Range)
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assert(r == subclass.new(0,1))
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end
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def test_eql
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r = (0..1)
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assert(r.eql?(r))
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assert(r.eql?(0..1))
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assert(!r.eql?(0))
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assert(!r.eql?(1..2))
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assert(!r.eql?(0..2))
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assert(!r.eql?(0...1))
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subclass = Class.new(Range)
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assert(r.eql?(subclass.new(0,1)))
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end
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def test_hash
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assert((0..1).hash.is_a?(Fixnum))
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end
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def test_step
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a = []
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(0..10).step {|x| a << x }
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assert_equal([0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10], a)
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a = []
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(0..10).step(2) {|x| a << x }
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assert_equal([0, 2, 4, 6, 8, 10], a)
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assert_raise(ArgumentError) { (0..10).step(-1) { } }
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assert_raise(ArgumentError) { (0..10).step(0) { } }
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a = []
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("a" .. "z").step(2) {|x| a << x }
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assert_equal(%w(a c e g i k m o q s u w y), a)
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a = []
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("a" .. "z").step(2**32) {|x| a << x }
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assert_equal(["a"], a)
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a = []
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(2**32-1 .. 2**32+1).step(2) {|x| a << x }
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assert_equal([4294967295, 4294967297], a)
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zero = (2**32).coerce(0).first
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assert_raise(ArgumentError) { (2**32-1 .. 2**32+1).step(zero) { } }
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o1 = Object.new
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o2 = Object.new
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def o1.<=>(x); -1; end
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def o2.<=>(x); 0; end
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assert_raise(TypeError) { (o1..o2).step(1) { } }
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class << o1; self; end.class_eval do
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define_method(:succ) { o2 }
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end
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a = []
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(o1..o2).step(1) {|x| a << x }
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assert_equal([o1, o2], a)
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a = []
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(o1...o2).step(1) {|x| a << x }
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assert_equal([o1], a)
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assert_nothing_raised("[ruby-dev:34557]") { (0..2).step(0.5) {|x| } }
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a = []
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(0..2).step(0.5) {|x| a << x }
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assert_equal([0, 0.5, 1.0, 1.5, 2.0], a)
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a = []
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(0x40000000..0x40000002).step(0.5) {|x| a << x }
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assert_equal([1073741824, 1073741824.5, 1073741825.0, 1073741825.5, 1073741826], a)
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o = Object.new
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def o.to_int() 1 end
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assert_nothing_raised("[ruby-dev:34558]") { (0..2).step(o) {|x| } }
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end
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def test_each
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a = []
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(0..10).each {|x| a << x }
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assert_equal([0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10], a)
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o1 = Object.new
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o2 = Object.new
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def o1.<=>(x); -1; end
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def o2.<=>(x); 0; end
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class << o1; self; end.class_eval do
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define_method(:succ) { o2 }
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end
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r1 = (o1..o2)
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r2 = (o1...o2)
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a = []
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r1.each {|x| a << x }
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assert_equal([o1, o2], a)
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a = []
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r2.each {|x| a << x }
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assert_equal([o1], a)
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def o2.<=>(x); 1; end
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a = []
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r1.each {|x| a << x }
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assert_equal([o1], a)
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def o2.<=>(x); nil; end
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a = []
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r1.each {|x| a << x }
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assert_equal([o1], a)
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def o1.<=>(x); nil; end
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a = []
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r2.each {|x| a << x }
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assert_equal([], a)
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end
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def test_begin_end
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assert_equal(0, (0..1).begin)
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assert_equal(1, (0..1).end)
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end
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def test_first_last
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assert_equal([0, 1, 2], (0..10).first(3))
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assert_equal([8, 9, 10], (0..10).last(3))
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end
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def test_to_s
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assert_equal("0..1", (0..1).to_s)
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assert_equal("0...1", (0...1).to_s)
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end
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def test_inspect
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assert_equal("0..1", (0..1).inspect)
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assert_equal("0...1", (0...1).inspect)
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end
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def test_eqq
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assert((0..10) === 5)
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assert(!((0..10) === 11))
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end
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def test_include
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assert(("a".."z").include?("c"))
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assert(!(("a".."z").include?("5")))
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assert(("a"..."z").include?("y"))
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assert(!(("a"..."z").include?("z")))
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assert(!(("a".."z").include?("cc")))
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assert((0...10).include?(5))
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end
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def test_cover
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assert(("a".."z").cover?("c"))
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assert(!(("a".."z").cover?("5")))
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assert(("a"..."z").cover?("y"))
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assert(!(("a"..."z").cover?("z")))
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assert(("a".."z").cover?("cc"))
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end
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def test_beg_len
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o = Object.new
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assert_raise(TypeError) { [][o] }
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def o.begin; -10; end
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assert_raise(TypeError) { [][o] }
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def o.end; 0; end
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assert_raise(NoMethodError) { [][o] }
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def o.exclude_end?; false; end
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assert_nil([0][o])
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assert_raise(RangeError) { [0][o] = 1 }
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def o.begin; 10; end
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def o.end; 10; end
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assert_nil([0][o])
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def o.begin; 0; end
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assert_equal([0], [0][o])
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def o.begin; 2; end
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def o.end; 0; end
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assert_equal([], [0, 1, 2][o])
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end
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class CyclicRange < Range
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def <=>(other); true; end
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end
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def test_cyclic_range_inspect
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o = CyclicRange.allocate
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o.instance_eval { initialize(o, 1) }
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assert_equal("(... .. ...)..1", o.inspect)
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end
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end
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