486 lines
15 KiB
Ruby
486 lines
15 KiB
Ruby
# frozen_string_literal: false
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require 'test/unit'
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class TestNumeric < Test::Unit::TestCase
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def test_coerce
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a, b = 1.coerce(2)
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assert_kind_of(Integer, a)
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assert_kind_of(Integer, b)
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a, b = 1.coerce(2.0)
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assert_equal(Float, a.class)
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assert_equal(Float, b.class)
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assert_raise(TypeError) { -Numeric.new }
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assert_raise_with_message(TypeError, /can't be coerced into /) {1+:foo}
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assert_raise_with_message(TypeError, /can't be coerced into /) {1&:foo}
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assert_raise_with_message(TypeError, /can't be coerced into /) {1|:foo}
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assert_raise_with_message(TypeError, /can't be coerced into /) {1^:foo}
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assert_raise_with_message(TypeError, /:\u{3042}/) {1+:"\u{3042}"}
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assert_raise_with_message(TypeError, /:\u{3042}/) {1&:"\u{3042}"}
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assert_raise_with_message(TypeError, /:\u{3042}/) {1|:"\u{3042}"}
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assert_raise_with_message(TypeError, /:\u{3042}/) {1^:"\u{3042}"}
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assert_raise_with_message(TypeError, /:"\\u3042"/) {1+:"\u{3042}"}
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assert_raise_with_message(TypeError, /:"\\u3042"/) {1&:"\u{3042}"}
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assert_raise_with_message(TypeError, /:"\\u3042"/) {1|:"\u{3042}"}
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assert_raise_with_message(TypeError, /:"\\u3042"/) {1^:"\u{3042}"}
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assert_raise_with_message(TypeError, /:\u{3044}/) {1+"\u{3044}".to_sym}
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assert_raise_with_message(TypeError, /:\u{3044}/) {1&"\u{3044}".to_sym}
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assert_raise_with_message(TypeError, /:\u{3044}/) {1|"\u{3044}".to_sym}
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assert_raise_with_message(TypeError, /:\u{3044}/) {1^"\u{3044}".to_sym}
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bug10711 = '[ruby-core:67405] [Bug #10711]'
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exp = "1.2 can't be coerced into Integer"
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assert_raise_with_message(TypeError, exp, bug10711) { 1 & 1.2 }
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end
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def test_dummynumeric
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a = Class.new(Numeric) do
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def coerce(x); nil; end
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end.new
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assert_raise(TypeError) { -a }
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assert_nil(1 <=> a)
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assert_raise(ArgumentError) { 1 <= a }
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a = Class.new(Numeric) do
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def coerce(x); 1.coerce(x); end
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end.new
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assert_equal(2, 1 + a)
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assert_equal(0, 1 <=> a)
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assert_operator(1, :<=, a)
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a = Class.new(Numeric) do
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def coerce(x); [x, 1]; end
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end.new
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assert_equal(-1, -a)
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a = Class.new(Numeric) do
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def coerce(x); raise StandardError, "my error"; end
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end.new
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assert_raise_with_message(StandardError, "my error") { 1 + a }
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assert_raise_with_message(StandardError, "my error") { 1 < a }
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a = Class.new(Numeric) do
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def coerce(x); :bad_return_value; end
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end.new
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assert_raise_with_message(TypeError, "coerce must return [x, y]") { 1 + a }
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assert_raise_with_message(TypeError, "coerce must return [x, y]") { 1 < a }
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end
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def test_singleton_method
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a = Numeric.new
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assert_raise_with_message(TypeError, /foo/) { def a.foo; end }
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assert_raise_with_message(TypeError, /\u3042/) { eval("def a.\u3042; end") }
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end
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def test_dup
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a = Numeric.new
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assert_same a, a.dup
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end
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def test_clone
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a = Numeric.new
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assert_same a, a.clone
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assert_raise(ArgumentError) {a.clone(freeze: false)}
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c = EnvUtil.labeled_class("\u{1f4a9}", Numeric)
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assert_raise_with_message(ArgumentError, /\u{1f4a9}/) do
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c.new.clone(freeze: false)
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end
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end
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def test_quo
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a = Numeric.new
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assert_raise(TypeError) {a.quo(1)}
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end
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def test_quo_ruby_core_41575
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rat = 84.quo(1)
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x = Class.new(Numeric) do
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define_method(:to_r) { rat }
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end.new
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assert_equal(2.quo(1), x.quo(42), '[ruby-core:41575]')
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end
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def test_divmod
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=begin
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x = Class.new(Numeric) do
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def /(x); 42.0; end
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def %(x); :mod; end
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end.new
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assert_equal(42, x.div(1))
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assert_equal(:mod, x.modulo(1))
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assert_equal([42, :mod], x.divmod(1))
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=end
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assert_kind_of(Integer, 11.divmod(3.5).first, '[ruby-dev:34006]')
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end
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def test_real_p
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assert_predicate(Numeric.new, :real?)
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end
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def test_integer_p
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assert_not_predicate(Numeric.new, :integer?)
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end
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def test_abs
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a = Class.new(Numeric) do
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def -@; :ok; end
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def <(x); true; end
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end.new
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assert_equal(:ok, a.abs)
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a = Class.new(Numeric) do
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def <(x); false; end
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end.new
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assert_equal(a, a.abs)
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end
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def test_zero_p
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a = Class.new(Numeric) do
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def ==(x); true; end
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end.new
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assert_predicate(a, :zero?)
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end
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def test_nonzero_p
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a = Class.new(Numeric) do
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def zero?; true; end
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end.new
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assert_nil(a.nonzero?)
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a = Class.new(Numeric) do
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def zero?; false; end
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end.new
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assert_equal(a, a.nonzero?)
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end
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def test_positive_p
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a = Class.new(Numeric) do
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def >(x); true; end
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end.new
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assert_predicate(a, :positive?)
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a = Class.new(Numeric) do
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def >(x); false; end
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end.new
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assert_not_predicate(a, :positive?)
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end
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def test_negative_p
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a = Class.new(Numeric) do
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def <(x); true; end
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end.new
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assert_predicate(a, :negative?)
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a = Class.new(Numeric) do
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def <(x); false; end
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end.new
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assert_not_predicate(a, :negative?)
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end
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def test_to_int
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a = Class.new(Numeric) do
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def to_i; :ok; end
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end.new
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assert_equal(:ok, a.to_int)
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end
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def test_cmp
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a = Numeric.new
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assert_equal(0, a <=> a)
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assert_nil(a <=> :foo)
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end
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def test_float_round_ndigits
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bug14635 = "[ruby-core:86323]"
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f = 0.5
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31.times do |i|
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assert_equal(0.5, f.round(i+1), bug14635 + " (argument: #{i+1})")
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end
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end
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def test_floor_ceil_round_truncate
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a = Class.new(Numeric) do
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def to_f; 1.5; end
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end.new
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assert_equal(1, a.floor)
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assert_equal(2, a.ceil)
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assert_equal(2, a.round)
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assert_equal(1, a.truncate)
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a = Class.new(Numeric) do
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def to_f; 1.4; end
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end.new
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assert_equal(1, a.floor)
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assert_equal(2, a.ceil)
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assert_equal(1, a.round)
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assert_equal(1, a.truncate)
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a = Class.new(Numeric) do
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def to_f; -1.5; end
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end.new
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assert_equal(-2, a.floor)
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assert_equal(-1, a.ceil)
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assert_equal(-2, a.round)
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assert_equal(-1, a.truncate)
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end
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def test_floor_ceil_ndigits
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bug17183 = "[ruby-core:100090]"
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f = 291.4
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31.times do |i|
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assert_equal(291.4, f.floor(i+1), bug17183)
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assert_equal(291.4, f.ceil(i+1), bug17183)
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end
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end
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def assert_step(expected, (from, *args), inf: false)
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kw = args.last.is_a?(Hash) ? args.pop : {}
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enum = from.step(*args, **kw)
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size = enum.size
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xsize = expected.size
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if inf
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assert_send [size, :infinite?], "step size: +infinity"
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assert_send [size, :>, 0], "step size: +infinity"
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a = []
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from.step(*args, **kw) { |x| a << x; break if a.size == xsize }
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assert_equal expected, a, "step"
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a = []
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enum.each { |x| a << x; break if a.size == xsize }
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assert_equal expected, a, "step enumerator"
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else
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assert_equal expected.size, size, "step size"
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a = []
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from.step(*args, **kw) { |x| a << x }
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assert_equal expected, a, "step"
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a = []
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enum.each { |x| a << x }
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assert_equal expected, a, "step enumerator"
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end
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end
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def test_step
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bignum = RbConfig::LIMITS['FIXNUM_MAX'] + 1
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assert_raise(ArgumentError) { 1.step(10, 1, 0) { } }
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assert_raise(ArgumentError) { 1.step(10, 1, 0).size }
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assert_raise(ArgumentError) { 1.step(10, 0) { } }
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assert_raise(ArgumentError) { 1.step(10, "1") { } }
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assert_raise(ArgumentError) { 1.step(10, "1").size }
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assert_raise(TypeError) { 1.step(10, nil) { } }
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assert_nothing_raised { 1.step(10, nil).size }
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assert_nothing_raised { 1.step(by: nil) }
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assert_nothing_raised { 1.step(by: nil).size }
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assert_kind_of(Enumerator::ArithmeticSequence, 1.step(10))
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assert_kind_of(Enumerator::ArithmeticSequence, 1.step(10, 2))
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assert_kind_of(Enumerator::ArithmeticSequence, 1.step(10, by: 2))
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assert_kind_of(Enumerator::ArithmeticSequence, 1.step(by: 2))
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assert_kind_of(Enumerator::ArithmeticSequence, 1.step(by: 2, to: nil))
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assert_kind_of(Enumerator::ArithmeticSequence, 1.step(by: 2, to: 10))
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assert_kind_of(Enumerator::ArithmeticSequence, 1.step(by: -1))
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bug9811 = '[ruby-dev:48177] [Bug #9811]'
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assert_raise(ArgumentError, bug9811) { 1.step(10, foo: nil) {} }
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assert_raise(ArgumentError, bug9811) { 1.step(10, foo: nil).size }
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assert_raise(ArgumentError, bug9811) { 1.step(10, to: 11) {} }
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assert_raise(ArgumentError, bug9811) { 1.step(10, to: 11).size }
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assert_raise(ArgumentError, bug9811) { 1.step(10, 1, by: 11) {} }
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assert_raise(ArgumentError, bug9811) { 1.step(10, 1, by: 11).size }
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feature15573 = "[ruby-core:91324] [Feature #15573]"
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assert_raise(ArgumentError, feature15573) { 1.step(10, 0) }
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assert_raise(ArgumentError, feature15573) { 1.step(10, by: 0) }
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assert_raise(ArgumentError, feature15573) { 1.step(10, 0) { break } }
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assert_raise(ArgumentError, feature15573) { 1.step(10, by: 0) { break } }
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assert_raise(ArgumentError, feature15573) { 42.step(by: 0, to: -Float::INFINITY) }
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assert_raise(ArgumentError, feature15573) { 42.step(by: 0, to: 42.5) }
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assert_raise(ArgumentError, feature15573) { 4.2.step(by: 0.0) }
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assert_raise(ArgumentError, feature15573) { 4.2.step(by: -0.0) }
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assert_raise(ArgumentError, feature15573) { 42.step(by: 0.0, to: 44) }
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assert_raise(ArgumentError, feature15573) { 42.step(by: 0.0, to: 0) }
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assert_raise(ArgumentError, feature15573) { 42.step(by: -0.0, to: 44) }
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assert_raise(ArgumentError, feature15573) { bignum.step(by: 0) }
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assert_raise(ArgumentError, feature15573) { bignum.step(by: 0.0) }
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assert_raise(ArgumentError, feature15573) { bignum.step(by: 0, to: bignum+1) }
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assert_raise(ArgumentError, feature15573) { bignum.step(by: 0, to: 0) }
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e = 1.step(10, {by: "1"})
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assert_raise(TypeError) {e.next}
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assert_raise(TypeError) {e.size}
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assert_equal(bignum*2+1, (-bignum).step(bignum, 1).size)
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assert_equal(bignum*2, (-bignum).step(bignum-1, 1).size)
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assert_equal(10+1, (0.0).step(10.0, 1.0).size)
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i, bigflo = 1, bignum.to_f
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i <<= 1 until (bigflo - i).to_i < bignum
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bigflo -= i >> 1
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assert_equal(bigflo.to_i, (0.0).step(bigflo-1.0, 1.0).size)
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assert_step [1, 2, 3, 4, 5, 6, 7, 8, 9, 10], [1, 10]
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assert_step [1, 2, 3, 4, 5, 6, 7, 8, 9, 10], [1, to: 10]
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assert_step [1, 2, 3, 4, 5, 6, 7, 8, 9, 10], [1, to: 10, by: nil]
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assert_step [1, 3, 5, 7, 9], [1, 10, 2]
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assert_step [1, 3, 5, 7, 9], [1, to: 10, by: 2]
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assert_step [10, 8, 6, 4, 2], [10, 1, -2]
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assert_step [10, 8, 6, 4, 2], [10, to: 1, by: -2]
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assert_step [1.0, 3.0, 5.0, 7.0, 9.0], [1.0, 10.0, 2.0]
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assert_step [1.0, 3.0, 5.0, 7.0, 9.0], [1.0, to: 10.0, by: 2.0]
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assert_step [1], [1, 10, bignum]
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assert_step [1], [1, to: 10, by: bignum]
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assert_step [], [2, 1, 3]
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assert_step [], [-2, -1, -3]
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assert_step [10], [10, 1, -bignum]
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assert_step [], [1, 0, Float::INFINITY]
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assert_step [], [0, 1, -Float::INFINITY]
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assert_step [10], [10, to: 1, by: -bignum]
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assert_step [10, 11, 12, 13], [10], inf: true
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assert_step [10, 9, 8, 7], [10, by: -1], inf: true
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assert_step [10, 9, 8, 7], [10, by: -1, to: nil], inf: true
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end
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def test_step_bug15537
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assert_step [10.0, 8.0, 6.0, 4.0, 2.0], [10.0, 1, -2]
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assert_step [10.0, 8.0, 6.0, 4.0, 2.0], [10.0, to: 1, by: -2]
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assert_step [10.0, 8.0, 6.0, 4.0, 2.0], [10.0, 1, -2]
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assert_step [10.0, 8.0, 6.0, 4.0, 2.0], [10, to: 1.0, by: -2]
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assert_step [10.0, 8.0, 6.0, 4.0, 2.0], [10, 1.0, -2]
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assert_step [10.0, 9.0, 8.0, 7.0], [10, by: -1.0], inf: true
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assert_step [10.0, 9.0, 8.0, 7.0], [10, by: -1.0, to: nil], inf: true
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assert_step [10.0, 9.0, 8.0, 7.0], [10, nil, -1.0], inf: true
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assert_step [10.0, 9.0, 8.0, 7.0], [10.0, by: -1], inf: true
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assert_step [10.0, 9.0, 8.0, 7.0], [10.0, nil, -1], inf: true
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end
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def test_num2long
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assert_raise(TypeError) { 1 & nil }
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assert_raise(TypeError) { 1 & 1.0 }
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assert_raise(TypeError) { 1 & 2147483648.0 }
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assert_raise(TypeError) { 1 & 9223372036854777856.0 }
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o = Object.new
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def o.to_int; 1; end
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assert_raise(TypeError) { assert_equal(1, 1 & o) }
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end
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def test_eql
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assert_equal(1, 1.0)
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assert_not_operator(1, :eql?, 1.0)
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assert_not_operator(1, :eql?, 2)
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end
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def test_coerced_remainder
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assert_separately([], <<-'end;')
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x = Class.new do
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def coerce(a) [self, a]; end
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def %(a) self; end
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end.new
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assert_raise(ArgumentError) {1.remainder(x)}
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end;
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end
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def test_remainder_infinity
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assert_equal(4, 4.remainder(Float::INFINITY))
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assert_equal(4, 4.remainder(-Float::INFINITY))
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assert_equal(-4, -4.remainder(Float::INFINITY))
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assert_equal(-4, -4.remainder(-Float::INFINITY))
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assert_equal(4.2, 4.2.remainder(Float::INFINITY))
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assert_equal(4.2, 4.2.remainder(-Float::INFINITY))
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assert_equal(-4.2, -4.2.remainder(Float::INFINITY))
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assert_equal(-4.2, -4.2.remainder(-Float::INFINITY))
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end
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def test_comparison_comparable
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bug12864 = '[ruby-core:77713] [Bug #12864]'
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myinteger = Class.new do
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include Comparable
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def initialize(i)
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@i = i.to_i
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end
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attr_reader :i
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def <=>(other)
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@i <=> (other.is_a?(self.class) ? other.i : other)
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end
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end
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all_assertions(bug12864) do |a|
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[5, 2**62, 2**61].each do |i|
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a.for("%#x"%i) do
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m = myinteger.new(i)
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assert_equal(i, m)
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assert_equal(m, i)
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|
end
|
|
end
|
|
end
|
|
end
|
|
|
|
def test_pow
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|
assert_equal(2**3, 2.pow(3))
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|
assert_equal(2**-1, 2.pow(-1))
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|
assert_equal(2**0.5, 2.pow(0.5))
|
|
assert_equal((-1)**0.5, -1.pow(0.5))
|
|
assert_equal(3**3 % 8, 3.pow(3, 8))
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|
assert_equal(3**3 % -8, 3.pow(3,-8))
|
|
assert_equal(3**2 % -2, 3.pow(2,-2))
|
|
assert_equal((-3)**3 % 8, -3.pow(3,8))
|
|
assert_equal((-3)**3 % -8, -3.pow(3,-8))
|
|
assert_equal(5**2 % -8, 5.pow(2,-8))
|
|
assert_equal(4481650795473624846969600733813414725093,
|
|
2120078484650058507891187874713297895455.
|
|
pow(5478118174010360425845660566650432540723,
|
|
5263488859030795548286226023720904036518))
|
|
|
|
assert_equal(12, 12.pow(1, 10000000000), '[Bug #14259]')
|
|
assert_equal(12, 12.pow(1, 10000000001), '[Bug #14259]')
|
|
assert_equal(12, 12.pow(1, 10000000002), '[Bug #14259]')
|
|
assert_equal(17298641040, 12.pow(72387894339363242, 243682743764), '[Bug #14259]')
|
|
|
|
integers = [-2, -1, 0, 1, 2, 3, 6, 1234567890123456789]
|
|
integers.each do |i|
|
|
assert_equal(0, i.pow(0, 1), '[Bug #17257]')
|
|
assert_equal(1, i.pow(0, 2))
|
|
assert_equal(1, i.pow(0, 3))
|
|
assert_equal(1, i.pow(0, 6))
|
|
assert_equal(1, i.pow(0, 1234567890123456789))
|
|
|
|
assert_equal(0, i.pow(0, -1))
|
|
assert_equal(-1, i.pow(0, -2))
|
|
assert_equal(-2, i.pow(0, -3))
|
|
assert_equal(-5, i.pow(0, -6))
|
|
assert_equal(-1234567890123456788, i.pow(0, -1234567890123456789))
|
|
end
|
|
|
|
assert_equal(0, 0.pow(2, 1))
|
|
assert_equal(0, 0.pow(3, 1))
|
|
assert_equal(0, 2.pow(3, 1))
|
|
assert_equal(0, -2.pow(3, 1))
|
|
end
|
|
|
|
end
|