mirror of
https://github.com/mruby/mruby
synced 2026-06-08 16:11:16 +00:00
dearblue
80fe9838d2
* The `Fixnum` constant is now an alias for the `Integer` class. * Remove `struct mrb_state::fixnum_class` member. If necessary, use `struct mrb_state::integer_class` instead.
309 lines
9.8 KiB
Ruby
309 lines
9.8 KiB
Ruby
class UserDefinedNumeric < Numeric
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def initialize(n)
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@n = n
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end
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def <=>(rhs)
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return nil unless rhs.respond_to?(:to_i)
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rhs = rhs.to_i
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rhs < 0 ? nil : @n <=> rhs
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end
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def inspect
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"#{self.class}(#{@n})"
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end
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end
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class ComplexLikeNumeric < UserDefinedNumeric
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def ==(rhs)
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@n == 0 && rhs == 0
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end
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undef <=>
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end
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def assert_rational(exp, real)
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assert "assert_rational" do
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assert_float exp.numerator, real.numerator
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assert_float exp.denominator, real.denominator
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end
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end
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def assert_equal_rational(exp, o1, o2)
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assert "assert_equal_rational" do
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if exp
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assert_operator(o1, :==, o2)
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assert_not_operator(o1, :!=, o2)
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else
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assert_not_operator(o1, :==, o2)
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assert_operator(o1, :!=, o2)
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end
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end
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end
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def assert_cmp(exp, o1, o2)
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if exp == (o1 <=> o2)
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pass
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else
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flunk "", " Expected #{o1.inspect} <=> #{o2.inspect} to be #{exp}."
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end
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end
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assert 'Rational' do
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r = 5r
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assert_equal(Rational, r.class)
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assert_equal([5, 1], [r.numerator, r.denominator])
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end
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assert 'Kernel#Rational' do
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r = Rational(4,10)
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assert_equal(2, r.numerator)
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assert_equal(5, r.denominator)
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r = Rational(3)
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assert_equal(3, r.numerator)
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assert_equal(1, r.denominator)
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assert_raise(ArgumentError) { Rational() }
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assert_raise(ArgumentError) { Rational(1,2,3) }
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end
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assert 'Rational#to_f' do
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assert_float(2.0, Rational(2).to_f)
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assert_float(2.25, Rational(9, 4).to_f)
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assert_float(-0.75, Rational(-3, 4).to_f)
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assert_float(6.666666666666667, Rational(20, 3).to_f)
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end
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assert 'Rational#to_i' do
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assert_equal(0, Rational(2, 3).to_i)
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assert_equal(3, Rational(3).to_i)
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assert_equal(300, Rational(300.6).to_i)
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assert_equal(1, Rational(98, 71).to_i)
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assert_equal(-15, Rational(-30, 2).to_i)
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end
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assert 'Rational#*' do
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assert_rational(Rational(4, 9), Rational(2, 3) * Rational(2, 3))
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assert_rational(Rational(900, 1), Rational(900) * Rational(1))
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assert_rational(Rational(1, 1), Rational(-2, 9) * Rational(-9, 2))
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assert_rational(Rational(9, 2), Rational(9, 8) * 4)
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assert_float( 21.77777777777778, Rational(20, 9) * 9.8)
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end
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assert 'Rational#+' do
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assert_rational(Rational(4, 3), Rational(2, 3) + Rational(2, 3))
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assert_rational(Rational(901, 1), Rational(900) + Rational(1))
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assert_rational(Rational(-85, 18), Rational(-2, 9) + Rational(-9, 2))
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assert_rational(Rational(41, 8), Rational(9, 8) + 4)
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assert_float( 12.022222222222222, Rational(20, 9) + 9.8)
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end
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assert 'Rational#-' do
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assert_rational(Rational(0, 1), Rational(2, 3) - Rational(2, 3))
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assert_rational(Rational(899, 1), Rational(900) - Rational(1))
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assert_rational(Rational(77, 18), Rational(-2, 9) - Rational(-9, 2))
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assert_rational(Rational(-23, 8), Rational(9, 8) - 4)
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assert_float( -7.577777777777778, Rational(20, 9) - 9.8)
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end
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assert 'Rational#/' do
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assert_rational(Rational(1, 1), Rational(2, 3) / Rational(2, 3))
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assert_rational(Rational(900, 1), Rational(900) / Rational(1))
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assert_rational(Rational(4, 81), Rational(-2, 9) / Rational(-9, 2))
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assert_rational(Rational(9, 32), Rational(9, 8) / 4)
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assert_float( 0.22675736961451246, Rational(20, 9) / 9.8)
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end
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assert 'Rational#==, Rational#!=' do
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assert_equal_rational(true, Rational(1,1), Rational(1))
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assert_equal_rational(true, Rational(-1,1), -1r)
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assert_equal_rational(true, Rational(13,4), 3.25)
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assert_equal_rational(true, Rational(13,3.25), Rational(4,1))
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assert_equal_rational(true, Rational(-3,-4), Rational(3,4))
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assert_equal_rational(true, Rational(-4,5), Rational(4,-5))
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assert_equal_rational(true, Rational(4,2), 2)
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assert_equal_rational(true, Rational(-4,2), -2)
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assert_equal_rational(true, Rational(4,-2), -2)
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assert_equal_rational(true, Rational(4,2), 2.0)
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assert_equal_rational(true, Rational(-4,2), -2.0)
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assert_equal_rational(true, Rational(4,-2), -2.0)
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assert_equal_rational(true, Rational(8,6), Rational(4,3))
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assert_equal_rational(false, Rational(13,4), 3)
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assert_equal_rational(false, Rational(13,4), 3.3)
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assert_equal_rational(false, Rational(2,1), 1r)
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assert_equal_rational(false, Rational(1), nil)
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assert_equal_rational(false, Rational(1), '')
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assert_equal_rational(true, 0r, UserDefinedNumeric.new(0))
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assert_equal_rational(true, 1r, UserDefinedNumeric.new(1))
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assert_equal_rational(false, 1r, UserDefinedNumeric.new(2))
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assert_equal_rational(false, -1r, UserDefinedNumeric.new(-1))
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assert_equal_rational(true, 0r, ComplexLikeNumeric.new(0))
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assert_equal_rational(false, 1r, ComplexLikeNumeric.new(1))
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assert_equal_rational(false, 1r, ComplexLikeNumeric.new(2))
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end
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assert 'Integer#==(Rational), Integer#!=(Rational)' do
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assert_equal_rational(true, 2, Rational(4,2))
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assert_equal_rational(true, -2, Rational(-4,2))
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assert_equal_rational(true, -2, Rational(4,-2))
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assert_equal_rational(false, 3, Rational(13,4))
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end
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assert 'Float#==(Rational), Float#!=(Rational)' do
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assert_equal_rational(true, 2.0, Rational(4,2))
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assert_equal_rational(true, -2.0, Rational(-4,2))
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assert_equal_rational(true, -2.0, Rational(4,-2))
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assert_equal_rational(false, 3.3, Rational(13,4))
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end
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assert 'Rational#<=>' do
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assert_cmp(-1, Rational(-1), Rational(0))
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assert_cmp(0, Rational(0), Rational(0))
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assert_cmp(1, Rational(1), Rational(0))
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assert_cmp(-1, Rational(-1), 0)
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assert_cmp(0, Rational(0), 0)
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assert_cmp(1, Rational(1), 0)
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assert_cmp(-1, Rational(-1), 0.0)
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assert_cmp(0, Rational(0), 0.0)
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assert_cmp(1, Rational(1), 0.0)
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assert_cmp(-1, Rational(1,2), Rational(2,3))
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assert_cmp(0, Rational(2,3), Rational(2,3))
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assert_cmp(1, Rational(2,3), Rational(1,2))
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assert_cmp(1, Rational(2,3), Rational(1,2))
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assert_cmp(1, Rational(0), Rational(-1))
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assert_cmp(-1, Rational(0), Rational(1))
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assert_cmp(1, Rational(2,3), Rational(1,2))
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assert_cmp(0, Rational(2,3), Rational(2,3))
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assert_cmp(-1, Rational(1,2), Rational(2,3))
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assert_cmp(-1, Rational(1,2), Rational(2,3))
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assert_cmp(nil, 3r, "3")
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assert_cmp(1, 3r, UserDefinedNumeric.new(2))
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assert_cmp(0, 3r, UserDefinedNumeric.new(3))
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assert_cmp(-1, 3r, UserDefinedNumeric.new(4))
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assert_cmp(nil, Rational(-3), UserDefinedNumeric.new(5))
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assert_raise(NoMethodError) { 0r <=> ComplexLikeNumeric.new(0) }
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assert_raise(NoMethodError) { 1r <=> ComplexLikeNumeric.new(2) }
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end
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assert 'Integer#<=>(Rational)' do
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assert_cmp(-1, -2, Rational(-9,5))
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assert_cmp(0, 5, 5r)
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assert_cmp(1, 3, Rational(8,3))
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end
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assert 'Float#<=>(Rational)' do
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assert_cmp(-1, -2.1, Rational(-9,5))
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assert_cmp(0, 5.0, 5r)
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assert_cmp(1, 2.7, Rational(8,3))
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end
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assert 'Rational#<' do
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assert_operator(Rational(1,2), :<, Rational(2,3))
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assert_not_operator(Rational(2,3), :<, Rational(2,3))
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assert_operator(Rational(2,3), :<, 1)
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assert_not_operator(2r, :<, 2)
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assert_not_operator(Rational(2,3), :<, -3)
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assert_operator(Rational(-4,3), :<, -0.3)
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assert_not_operator(Rational(13,4), :<, 3.25)
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assert_not_operator(Rational(2,3), :<, 0.6)
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assert_raise(ArgumentError) { 1r < "2" }
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end
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assert 'Integer#<(Rational)' do
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assert_not_operator(1, :<, Rational(2,3))
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assert_not_operator(2, :<, 2r)
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assert_operator(-3, :<, Rational(2,3))
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end
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assert 'Float#<(Rational)' do
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assert_not_operator(-0.3, :<, Rational(-4,3))
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assert_not_operator(3.25, :<, Rational(13,4))
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assert_operator(0.6, :<, Rational(2,3))
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end
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assert 'Rational#<=' do
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assert_operator(Rational(1,2), :<=, Rational(2,3))
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assert_operator(Rational(2,3), :<=, Rational(2,3))
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assert_operator(Rational(2,3), :<=, 1)
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assert_operator(2r, :<=, 2)
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assert_not_operator(Rational(2,3), :<=, -3)
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assert_operator(Rational(-4,3), :<=, -0.3)
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assert_operator(Rational(13,4), :<=, 3.25)
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assert_not_operator(Rational(2,3), :<=, 0.6)
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assert_raise(ArgumentError) { 1r <= "2" }
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end
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assert 'Integer#<=(Rational)' do
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assert_not_operator(1, :<=, Rational(2,3))
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assert_operator(2, :<=, 2r)
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assert_operator(-3, :<=, Rational(2,3))
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end
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assert 'Float#<=(Rational)' do
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assert_not_operator(-0.3, :<=, Rational(-4,3))
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assert_operator(3.25, :<=, Rational(13,4))
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assert_operator(0.6, :<=, Rational(2,3))
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end
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assert 'Rational#>' do
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assert_not_operator(Rational(1,2), :>, Rational(2,3))
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assert_not_operator(Rational(2,3), :>, Rational(2,3))
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assert_not_operator(Rational(2,3), :>, 1)
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assert_not_operator(2r, :>, 2)
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assert_operator(Rational(2,3), :>, -3)
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assert_not_operator(Rational(-4,3), :>, -0.3)
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assert_not_operator(Rational(13,4), :>, 3.25)
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assert_operator(Rational(2,3), :>, 0.6)
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assert_raise(ArgumentError) { 1r > "2" }
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end
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assert 'Integer#>(Rational)' do
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assert_operator(1, :>, Rational(2,3))
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assert_not_operator(2, :>, 2r)
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assert_not_operator(-3, :>, Rational(2,3))
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end
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assert 'Float#>(Rational)' do
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assert_operator(-0.3, :>, Rational(-4,3))
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assert_not_operator(3.25, :>, Rational(13,4))
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assert_not_operator(0.6, :>, Rational(2,3))
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end
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assert 'Rational#>=' do
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assert_not_operator(Rational(1,2), :>=, Rational(2,3))
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assert_operator(Rational(2,3), :>=, Rational(2,3))
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assert_not_operator(Rational(2,3), :>=, 1)
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assert_operator(2r, :>=, 2)
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assert_operator(Rational(2,3), :>=, -3)
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assert_not_operator(Rational(-4,3), :>=, -0.3)
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assert_operator(Rational(13,4), :>=, 3.25)
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assert_operator(Rational(2,3), :>=, 0.6)
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assert_raise(ArgumentError) { 1r >= "2" }
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end
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assert 'Integer#>=(Rational)' do
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assert_operator(1, :>=, Rational(2,3))
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assert_operator(2, :>=, 2r)
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assert_not_operator(-3, :>=, Rational(2,3))
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end
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assert 'Float#>=(Rational)' do
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assert_operator(-0.3, :>=, Rational(-4,3))
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assert_operator(3.25, :>=, Rational(13,4))
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assert_not_operator(0.6, :>=, Rational(2,3))
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end
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assert 'Rational#negative?' do
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assert_predicate(Rational(-2,3), :negative?)
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assert_predicate(Rational(2,-3), :negative?)
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assert_not_predicate(Rational(2,3), :negative?)
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assert_not_predicate(Rational(0), :negative?)
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end
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assert 'Rational#frozen?' do
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assert_predicate(1r, :frozen?)
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assert_predicate(Rational(2,3), :frozen?)
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assert_predicate(4/5r, :frozen?)
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end
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