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7a856b11c8
[Feature #10169][[ruby-core:64553]] git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@58432 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
650 lines
18 KiB
Ruby
650 lines
18 KiB
Ruby
# frozen_string_literal: false
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require 'test/unit'
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require 'delegate'
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require 'timeout'
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require 'bigdecimal'
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class TestRange < Test::Unit::TestCase
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def test_new
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assert_equal((0..2), Range.new(0, 2))
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assert_equal((0..2), Range.new(0, 2, false))
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assert_equal((0...2), Range.new(0, 2, true))
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end
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def test_frozen_initialize
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r = Range.allocate
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r.freeze
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assert_raise(RuntimeError){r.__send__(:initialize, 1, 2)}
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end
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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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assert_equal([0,1,2], (0..10).min(3))
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assert_equal([0,1], (0..1).min(3))
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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_raise(TypeError) { (1...1.5).max }
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assert_raise(TypeError) { (1.5...2).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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assert_equal([10,9,8], (0..10).max(3))
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assert_equal([9,8,7], (0...10).max(3))
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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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assert_raise(NameError) { r.instance_eval { initialize_copy 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_marshal
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r = 1..2
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assert_equal(r, Marshal.load(Marshal.dump(r)))
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r = 1...2
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assert_equal(r, Marshal.load(Marshal.dump(r)))
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s = Marshal.dump(r)
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s.sub!(/endi./n, 'end0')
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assert_raise(ArgumentError) {Marshal.load(s)}
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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_not_predicate(0..1, :exclude_end?)
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assert_predicate(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_equal(r, r)
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assert_equal(r, (0..1))
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assert_not_equal(r, 0)
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assert_not_equal(r, (1..2))
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assert_not_equal(r, (0..2))
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assert_not_equal(r, (0...1))
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subclass = Class.new(Range)
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assert_equal(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_operator(r, :eql?, r)
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assert_operator(r, :eql?, 0..1)
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assert_not_operator(r, :eql?, 0)
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assert_not_operator(r, :eql?, 1..2)
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assert_not_operator(r, :eql?, 0..2)
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assert_not_operator(r, :eql?, 0...1)
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subclass = Class.new(Range)
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assert_operator(r, :eql?, subclass.new(0,1))
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end
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def test_hash
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assert_kind_of(Integer, (0..1).hash)
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assert_equal((0..1).hash, (0..1).hash)
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assert_not_equal((0..1).hash, (0...1).hash)
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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_step_ruby_core_35753
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assert_equal(6, (1...6.3).step.to_a.size)
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assert_equal(5, (1.1...6).step.to_a.size)
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assert_equal(5, (1...6).step(1.1).to_a.size)
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assert_equal(3, (1.0...5.4).step(1.5).to_a.size)
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assert_equal(3, (1.0...5.5).step(1.5).to_a.size)
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assert_equal(4, (1.0...5.6).step(1.5).to_a.size)
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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.setcmp(v) @cmpresult = v end
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o1.setcmp(-1)
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def o1.<=>(x); @cmpresult; end
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def o2.setcmp(v) @cmpresult = v end
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o2.setcmp(0)
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def o2.<=>(x); @cmpresult; 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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o2.setcmp(1)
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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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o2.setcmp(nil)
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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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o1.setcmp(nil)
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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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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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assert_equal(0, (0..10).first)
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assert_equal(10, (0..10).last)
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assert_equal("a", ("a".."c").first)
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assert_equal("c", ("a".."c").last)
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assert_equal(0, (2..0).last)
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assert_equal([0, 1, 2], (0...10).first(3))
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assert_equal([7, 8, 9], (0...10).last(3))
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assert_equal(0, (0...10).first)
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assert_equal(10, (0...10).last)
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assert_equal("a", ("a"..."c").first)
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assert_equal("c", ("a"..."c").last)
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assert_equal(0, (2...0).last)
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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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bug11767 = '[ruby-core:71811] [Bug #11767]'
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assert_predicate(("0".taint.."1").to_s, :tainted?, bug11767)
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assert_predicate(("0".."1".taint).to_s, :tainted?, bug11767)
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assert_predicate(("0".."1").taint.to_s, :tainted?, bug11767)
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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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bug11767 = '[ruby-core:71811] [Bug #11767]'
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assert_predicate(("0".taint.."1").inspect, :tainted?, bug11767)
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assert_predicate(("0".."1".taint).inspect, :tainted?, bug11767)
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assert_predicate(("0".."1").taint.inspect, :tainted?, bug11767)
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end
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def test_eqq
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assert_operator(0..10, :===, 5)
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assert_not_operator(0..10, :===, 11)
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end
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def test_eqq_time
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bug11113 = '[ruby-core:69052] [Bug #11113]'
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t = Time.now
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assert_nothing_raised(TypeError, bug11113) {
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assert_operator(t..(t+10), :===, t+5)
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}
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end
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def test_eqq_non_linear
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bug12003 = '[ruby-core:72908] [Bug #12003]'
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c = Class.new {
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attr_reader :value
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def initialize(value)
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@value = value
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end
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def succ
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self.class.new(@value.succ)
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end
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def ==(other)
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@value == other.value
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end
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def <=>(other)
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@value <=> other.value
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end
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}
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assert_operator(c.new(0)..c.new(10), :===, c.new(5), bug12003)
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end
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def test_include
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assert_include("a".."z", "c")
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assert_not_include("a".."z", "5")
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assert_include("a"..."z", "y")
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assert_not_include("a"..."z", "z")
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assert_not_include("a".."z", "cc")
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assert_include(0...10, 5)
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end
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def test_cover
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assert_operator("a".."z", :cover?, "c")
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assert_not_operator("a".."z", :cover?, "5")
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assert_operator("a"..."z", :cover?, "y")
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assert_not_operator("a"..."z", :cover?, "z")
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assert_operator("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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class << o; attr_accessor :begin end
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o.begin = -10
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assert_raise(TypeError) { [][o] }
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class << o; attr_accessor :end end
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o.end = 0
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assert_raise(NoMethodError) { [][o] }
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def o.exclude_end=(v) @exclude_end = v end
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def o.exclude_end?() @exclude_end end
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o.exclude_end = false
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assert_nil([0][o])
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assert_raise(RangeError) { [0][o] = 1 }
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o.begin = 10
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o.end = 10
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assert_nil([0][o])
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o.begin = 0
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assert_equal([0], [0][o])
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o.begin = 2
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o.end = 0
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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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def test_comparison_when_recursive
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x = CyclicRange.allocate; x.send(:initialize, x, 1)
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y = CyclicRange.allocate; y.send(:initialize, y, 1)
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Timeout.timeout(1) {
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assert_equal x, y
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assert_operator x, :eql?, y
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}
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z = CyclicRange.allocate; z.send(:initialize, z, :another)
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Timeout.timeout(1) {
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assert_not_equal x, z
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assert_not_operator x, :eql?, z
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}
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x = CyclicRange.allocate
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y = CyclicRange.allocate
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x.send(:initialize, y, 1)
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y.send(:initialize, x, 1)
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Timeout.timeout(1) {
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assert_equal x, y
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assert_operator x, :eql?, y
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}
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x = CyclicRange.allocate
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z = CyclicRange.allocate
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x.send(:initialize, z, 1)
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z.send(:initialize, x, :other)
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Timeout.timeout(1) {
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assert_not_equal x, z
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assert_not_operator x, :eql?, z
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}
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end
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def test_size
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assert_equal 42, (1..42).size
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assert_equal 41, (1...42).size
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assert_equal 6, (1...6.3).size
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assert_equal 5, (1.1...6).size
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assert_equal 42, (1..42).each.size
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end
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def test_bsearch_typechecks_return_values
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assert_raise(TypeError) do
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(1..42).bsearch{ "not ok" }
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end
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c = eval("class C\u{309a 26a1 26c4 1f300};self;end")
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assert_raise_with_message(TypeError, /C\u{309a 26a1 26c4 1f300}/) do
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(1..42).bsearch {c.new}
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end
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assert_equal (1..42).bsearch{}, (1..42).bsearch{false}
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end
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def test_bsearch_with_no_block
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enum = (42...666).bsearch
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assert_nil enum.size
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assert_equal 200, enum.each{|x| x >= 200 }
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end
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def test_bsearch_for_other_numerics
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assert_raise(TypeError) {
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(Rational(-1,2)..Rational(9,4)).bsearch
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}
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assert_raise(TypeError) {
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(BigDecimal('0.5')..BigDecimal('2.25')).bsearch
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}
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end
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def test_bsearch_for_fixnum
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ary = [3, 4, 7, 9, 12]
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assert_equal(0, (0...ary.size).bsearch {|i| ary[i] >= 2 })
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assert_equal(1, (0...ary.size).bsearch {|i| ary[i] >= 4 })
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assert_equal(2, (0...ary.size).bsearch {|i| ary[i] >= 6 })
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assert_equal(3, (0...ary.size).bsearch {|i| ary[i] >= 8 })
|
|
assert_equal(4, (0...ary.size).bsearch {|i| ary[i] >= 10 })
|
|
assert_equal(nil, (0...ary.size).bsearch {|i| ary[i] >= 100 })
|
|
assert_equal(0, (0...ary.size).bsearch {|i| true })
|
|
assert_equal(nil, (0...ary.size).bsearch {|i| false })
|
|
|
|
ary = [0, 100, 100, 100, 200]
|
|
assert_equal(1, (0...ary.size).bsearch {|i| ary[i] >= 100 })
|
|
end
|
|
|
|
def test_bsearch_for_float
|
|
inf = Float::INFINITY
|
|
assert_in_delta(10.0, (0.0...100.0).bsearch {|x| x > 0 && Math.log(x / 10) >= 0 }, 0.0001)
|
|
assert_in_delta(10.0, (0.0...inf).bsearch {|x| x > 0 && Math.log(x / 10) >= 0 }, 0.0001)
|
|
assert_in_delta(-10.0, (-inf..100.0).bsearch {|x| x >= 0 || Math.log(-x / 10) < 0 }, 0.0001)
|
|
assert_in_delta(10.0, (-inf..inf).bsearch {|x| x > 0 && Math.log(x / 10) >= 0 }, 0.0001)
|
|
assert_equal(nil, (-inf..5).bsearch {|x| x > 0 && Math.log(x / 10) >= 0 }, 0.0001)
|
|
|
|
assert_in_delta(10.0, (-inf.. 10).bsearch {|x| x > 0 && Math.log(x / 10) >= 0 }, 0.0001)
|
|
assert_equal(nil, (-inf...10).bsearch {|x| x > 0 && Math.log(x / 10) >= 0 }, 0.0001)
|
|
|
|
assert_equal(nil, (-inf..inf).bsearch { false })
|
|
assert_equal(-inf, (-inf..inf).bsearch { true })
|
|
|
|
assert_equal(inf, (0..inf).bsearch {|x| x == inf })
|
|
assert_equal(nil, (0...inf).bsearch {|x| x == inf })
|
|
|
|
v = (-inf..0).bsearch {|x| x != -inf }
|
|
assert_operator(-Float::MAX, :>=, v)
|
|
assert_operator(-inf, :<, v)
|
|
|
|
v = (0.0..1.0).bsearch {|x| x > 0 } # the nearest positive value to 0.0
|
|
assert_in_delta(0, v, 0.0001)
|
|
assert_operator(0, :<, v)
|
|
assert_equal(0.0, (-1.0..0.0).bsearch {|x| x >= 0 })
|
|
assert_equal(nil, (-1.0...0.0).bsearch {|x| x >= 0 })
|
|
|
|
v = (0..Float::MAX).bsearch {|x| x >= Float::MAX }
|
|
assert_in_delta(Float::MAX, v)
|
|
assert_equal(nil, v.infinite?)
|
|
|
|
v = (0..inf).bsearch {|x| x >= Float::MAX }
|
|
assert_in_delta(Float::MAX, v)
|
|
assert_equal(nil, v.infinite?)
|
|
|
|
v = (-Float::MAX..0).bsearch {|x| x > -Float::MAX }
|
|
assert_operator(-Float::MAX, :<, v)
|
|
assert_equal(nil, v.infinite?)
|
|
|
|
v = (-inf..0).bsearch {|x| x >= -Float::MAX }
|
|
assert_in_delta(-Float::MAX, v)
|
|
assert_equal(nil, v.infinite?)
|
|
|
|
v = (-inf..0).bsearch {|x| x > -Float::MAX }
|
|
assert_operator(-Float::MAX, :<, v)
|
|
assert_equal(nil, v.infinite?)
|
|
|
|
assert_in_delta(1.0, (0.0..inf).bsearch {|x| Math.log(x) >= 0 })
|
|
assert_in_delta(7.0, (0.0..10).bsearch {|x| 7.0 - x })
|
|
end
|
|
|
|
def check_bsearch_values(range, search, a)
|
|
from, to = range.begin, range.end
|
|
cmp = range.exclude_end? ? :< : :<=
|
|
r = nil
|
|
|
|
a.for "(0) trivial test" do
|
|
r = Range.new(to, from, range.exclude_end?).bsearch do |x|
|
|
fail "#{to}, #{from}, #{range.exclude_end?}, #{x}"
|
|
end
|
|
assert_nil r
|
|
|
|
r = (to...to).bsearch do
|
|
fail
|
|
end
|
|
assert_nil r
|
|
end
|
|
|
|
# prepare for others
|
|
yielded = []
|
|
r = range.bsearch do |val|
|
|
yielded << val
|
|
val >= search
|
|
end
|
|
|
|
a.for "(1) log test" do
|
|
max = case from
|
|
when Float then 65
|
|
when Integer then Math.log(to-from+(range.exclude_end? ? 0 : 1), 2).to_i + 1
|
|
end
|
|
assert_operator yielded.size, :<=, max
|
|
end
|
|
|
|
a.for "(2) coverage test" do
|
|
expect = case
|
|
when search < from
|
|
from
|
|
when search.send(cmp, to)
|
|
search
|
|
else
|
|
nil
|
|
end
|
|
assert_equal expect, r
|
|
end
|
|
|
|
a.for "(3) uniqueness test" do
|
|
assert_nil yielded.uniq!
|
|
end
|
|
|
|
a.for "(4) end of range test" do
|
|
case
|
|
when range.exclude_end?
|
|
assert_not_include yielded, to
|
|
assert_not_equal r, to
|
|
when search >= to
|
|
assert_include yielded, to
|
|
assert_equal search == to ? to : nil, r
|
|
end
|
|
end
|
|
|
|
a.for "(5) start of range test" do
|
|
if search <= from
|
|
assert_include yielded, from
|
|
assert_equal from, r
|
|
end
|
|
end
|
|
|
|
a.for "(6) out of range test" do
|
|
yielded.each do |val|
|
|
assert_operator from, :<=, val
|
|
assert_send [val, cmp, to]
|
|
end
|
|
end
|
|
end
|
|
|
|
def test_range_bsearch_for_floats
|
|
ints = [-1 << 100, -123456789, -42, -1, 0, 1, 42, 123456789, 1 << 100]
|
|
floats = [-Float::INFINITY, -Float::MAX, -42.0, -4.2, -Float::EPSILON, -Float::MIN, 0.0, Float::MIN, Float::EPSILON, Math::PI, 4.2, 42.0, Float::MAX, Float::INFINITY]
|
|
|
|
all_assertions do |a|
|
|
[ints, floats].each do |values|
|
|
values.combination(2).to_a.product(values).each do |(from, to), search|
|
|
check_bsearch_values(from..to, search, a)
|
|
check_bsearch_values(from...to, search, a)
|
|
end
|
|
end
|
|
end
|
|
end
|
|
|
|
def test_bsearch_for_bignum
|
|
bignum = 2**100
|
|
ary = [3, 4, 7, 9, 12]
|
|
assert_equal(bignum + 0, (bignum...bignum+ary.size).bsearch {|i| ary[i - bignum] >= 2 })
|
|
assert_equal(bignum + 1, (bignum...bignum+ary.size).bsearch {|i| ary[i - bignum] >= 4 })
|
|
assert_equal(bignum + 2, (bignum...bignum+ary.size).bsearch {|i| ary[i - bignum] >= 6 })
|
|
assert_equal(bignum + 3, (bignum...bignum+ary.size).bsearch {|i| ary[i - bignum] >= 8 })
|
|
assert_equal(bignum + 4, (bignum...bignum+ary.size).bsearch {|i| ary[i - bignum] >= 10 })
|
|
assert_equal(nil, (bignum...bignum+ary.size).bsearch {|i| ary[i - bignum] >= 100 })
|
|
assert_equal(bignum + 0, (bignum...bignum+ary.size).bsearch {|i| true })
|
|
assert_equal(nil, (bignum...bignum+ary.size).bsearch {|i| false })
|
|
|
|
assert_raise(TypeError) { ("a".."z").bsearch {} }
|
|
end
|
|
|
|
def test_each_no_blockarg
|
|
a = "a"
|
|
def a.upto(x, e, &b)
|
|
super {|y| b.call(y) {|z| assert(false)}}
|
|
end
|
|
(a.."c").each {|x, &b| assert_nil(b)}
|
|
end
|
|
end
|