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authornobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>2016-11-05 09:49:39 +0000
committernobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>2016-11-05 09:49:39 +0000
commitdfe91fcd08e7e255b5cb1b306e53bea1ddb54e5f (patch)
treed209f0b546e45cb8d8fa7fc2bbbb5044e53e2c8f /test/ruby/test_rational.rb
parent76977611dd68e384fdce8c546efda5e1931e67a6 (diff)
numeric.c: round to nearest even
* numeric.c (flo_round, int_round): support round-to-nearest-even semantics of IEEE 754 to match sprintf behavior, and add `half:` optional keyword argument for the old behavior. [ruby-core:76273] [Bug #12548] git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@56590 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'test/ruby/test_rational.rb')
-rw-r--r--test/ruby/test_rational.rb23
1 files changed, 13 insertions, 10 deletions
diff --git a/test/ruby/test_rational.rb b/test/ruby/test_rational.rb
index 387f4121cf..d65c292970 100644
--- a/test/ruby/test_rational.rb
+++ b/test/ruby/test_rational.rb
@@ -597,17 +597,20 @@ class Rational_Test < Test::Unit::TestCase
end
def test_trunc
- [[Rational(13, 5), [ 2, 3, 2, 3]], # 2.6
- [Rational(5, 2), [ 2, 3, 2, 3]], # 2.5
- [Rational(12, 5), [ 2, 3, 2, 2]], # 2.4
- [Rational(-12,5), [-3, -2, -2, -2]], # -2.4
- [Rational(-5, 2), [-3, -2, -2, -3]], # -2.5
- [Rational(-13, 5), [-3, -2, -2, -3]], # -2.6
+ [[Rational(13, 5), [ 2, 3, 2, 3, 3, 3]], # 2.6
+ [Rational(5, 2), [ 2, 3, 2, 2, 2, 3]], # 2.5
+ [Rational(12, 5), [ 2, 3, 2, 2, 2, 2]], # 2.4
+ [Rational(-12,5), [-3, -2, -2, -2, -2, -2]], # -2.4
+ [Rational(-5, 2), [-3, -2, -2, -2, -2, -3]], # -2.5
+ [Rational(-13, 5), [-3, -2, -2, -3, -3, -3]], # -2.6
].each do |i, a|
- assert_equal(a[0], i.floor)
- assert_equal(a[1], i.ceil)
- assert_equal(a[2], i.truncate)
- assert_equal(a[3], i.round)
+ s = proc {i.inspect}
+ assert_equal(a[0], i.floor, s)
+ assert_equal(a[1], i.ceil, s)
+ assert_equal(a[2], i.truncate, s)
+ assert_equal(a[3], i.round, s)
+ assert_equal(a[4], i.round(half: :even), s)
+ assert_equal(a[5], i.round(half: :up), s)
end
end