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* numeric.c (num_positive_p, num_negative_p): add methods Numeric#positive? and Numeric#negative?. [ruby-core:69173] [Feature #11151] * numeric.c (flo_positive_p, flo_negative_p): specialiazed functions for Float. * complex.c (Init_Complex): Complex do not have positive? and negative? methods git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@50522 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
338 lines
10 KiB
Ruby
338 lines
10 KiB
Ruby
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_equal(Fixnum, a.class)
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assert_equal(Fixnum, b.class)
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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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EnvUtil.with_default_external(Encoding::UTF_8) do
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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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end
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EnvUtil.with_default_external(Encoding::US_ASCII) do
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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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end
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bug10711 = '[ruby-core:67405] [Bug #10711]'
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exp = "1.2 can't be coerced into Fixnum"
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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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bug7688 = '[ruby-core:51389] [Bug #7688]'
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a = Class.new(Numeric) do
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def coerce(x); raise StandardError; end
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end.new
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assert_raise_with_message(TypeError, /can't be coerced into /) { 1 + a }
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warn = /will no more rescue exceptions of #coerce.+ in the next release/m
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assert_warn(warn, bug7688) { assert_raise(ArgumentError) { 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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warn = /Bad return value for #coerce.+next release will raise an error/m
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assert_warn(warn, bug7688) { assert_raise(ArgumentError) { 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_raise(TypeError) { a.dup }
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c = Module.new do
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break eval("class C\u{3042} < Numeric; self; end")
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end
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assert_raise_with_message(TypeError, /C\u3042/) {c.new.dup}
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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_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_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 assert_step(expected, (from, *args), inf: false)
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enum = from.step(*args)
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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) { |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) { |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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i, bignum = 32, 1 << 30
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bignum <<= (i <<= 1) - 32 until bignum.is_a?(Bignum)
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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, 0).size }
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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_raise(TypeError) { 1.step(10, nil).size }
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assert_nothing_raised { 1.step(by: 0, to: nil) }
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assert_nothing_raised { 1.step(by: 0, to: nil).size }
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assert_nothing_raised { 1.step(by: 0) }
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assert_nothing_raised { 1.step(by: 0).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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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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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_operator((0.0).step(bignum.to_f, 1.0).size, :>=, bignum) # may loose precision
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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 [3, 3, 3, 3], [3, by: 0], inf: true
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assert_step [3, 3, 3, 3], [3, by: 0, to: 42], inf: true
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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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assert_step [42, 42, 42, 42], [42, by: 0, to: -Float::INFINITY], inf: true
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assert_step [42, 42, 42, 42], [42, by: 0, to: 42.5], inf: true
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assert_step [4.2, 4.2, 4.2, 4.2], [4.2, by: 0.0], inf: true
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assert_step [4.2, 4.2, 4.2, 4.2], [4.2, by: -0.0], inf: true
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assert_step [42.0, 42.0, 42.0, 42.0], [42, by: 0.0, to: 44], inf: true
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assert_step [42.0, 42.0, 42.0, 42.0], [42, by: 0.0, to: 0], inf: true
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assert_step [42.0, 42.0, 42.0, 42.0], [42, by: -0.0, to: 44], inf: true
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assert_step [bignum]*4, [bignum, by: 0], inf: true
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assert_step [bignum]*4, [bignum, by: 0.0], inf: true
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assert_step [bignum]*4, [bignum, by: 0, to: bignum+1], inf: true
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assert_step [bignum]*4, [bignum, by: 0, to: 0], 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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end
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