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* test/ruby/test_math.rb: add tests for the above change.

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git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@49819 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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gogotanaka 2015-03-03 05:59:40 +00:00
parent 972713cee1
commit b5f8aec516
2 changed files with 23 additions and 0 deletions
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ChangeLog
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@ -3,6 +3,8 @@ Tue Mar 3 14:47:30 2015 Kazuki Tanaka <gogotanaka@ruby-lang.org>
* math.c (num2dbl_with_to_f): direct casting from Rational to double.
[Feature #10909]
* test/ruby/test_math.rb: add tests for the above change.
Tue Mar 3 07:52:20 2015 Rei Odaira <Rei.Odaira@gmail.com>
* test/ruby/test_symbol.rb: avoid a false positive in AIX.

21
test/ruby/test_math.rb
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@ -42,6 +42,12 @@ class TestMath < Test::Unit::TestCase
check(0.0, Math.cos(2 * Math::PI / 4))
check(-1.0, Math.cos(4 * Math::PI / 4))
check(0.0, Math.cos(6 * Math::PI / 4))
check(0.5403023058681398, Math.cos(1))
check(-0.7112665029764864, Math.cos(1 << 62))
check(0.9289154176164999, Math.cos((2 ** 62)/(3 ** 40).to_r))
check(0.9820680774815206, Math.cos((2 ** 61)/(3 ** 40).to_r))
check(0.4194382061248139, Math.cos((2 ** 62)/(3 ** 39).to_r))
check(0.8424482791616391, Math.cos((2 ** 61)/(3 ** 39).to_r))
end
def test_sin
@ -319,4 +325,19 @@ class TestMath < Test::Unit::TestCase
Bignum.class_eval { alias to_f _to_f }
end
def test_override_rational_to_f
Rational.class_eval do
alias _to_f to_f
def to_f
(self + 1)._to_f
end
end
check(Math.cos((0r + 1)._to_f), Math.cos(0r))
check(Math.exp((0r + 1)._to_f), Math.exp(0r))
check(Math.log((0r + 1)._to_f), Math.log(0r))
Rational.class_eval { alias to_f _to_f }
end
end