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# frozen_string_literal: false
require 'test/unit'
require "-test-/rational"
class TestRational < Test::Unit::TestCase
class TestGCD < Test::Unit::TestCase
def test_gcd_normal
x = 2*2*3*3*3
y = 2*2*2*3*3
gcd = 2*2*3*3
assert_equal(gcd, x.gcd_normal(y))
end
def test_gcd_gmp
x = 2*2*3*3*3
y = 2*2*2*3*3
gcd = 2*2*3*3
assert_equal(gcd, x.gcd_gmp(y))
rescue NotImplementedError
end
def test_gcd_gmp_brute_force
-13.upto(13) {|x|
-13.upto(13) {|y|
assert_equal(x.gcd_normal(y), x.gcd_gmp(y))
}
}
rescue NotImplementedError
end
end
def test_rb_rational_raw
rat = Rational.raw(1, 2)
assert_equal(1, rat.numerator)
assert_equal(2, rat.denominator)
rat = Rational.raw(-1, 2)
assert_equal(-1, rat.numerator)
assert_equal(2, rat.denominator)
rat = Rational.raw(1, -2)
assert_equal(-1, rat.numerator)
assert_equal(2, rat.denominator)
assert_equal(1/2r, Rational.raw(1.0, 2.0))
assert_raise(TypeError) { Rational.raw("1", 2) }
assert_raise(TypeError) { Rational.raw(1, "2") }
class << (o = Object.new)
def to_i; 42; end
end
assert_raise(TypeError) { Rational.raw(o, 2) }
assert_raise(TypeError) { Rational.raw(1, o) }
class << (o = Object.new)
def to_int; 42; end
end
rat = Rational.raw(o, 2)
assert_equal(42, rat.numerator)
assert_equal(2, rat.denominator)
rat = Rational.raw(2, o)
assert_equal(2, rat.numerator)
assert_equal(42, rat.denominator)
end
end
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