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author | nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2013-08-13 13:13:02 +0000 |
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committer | nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2013-08-13 13:13:02 +0000 |
commit | 26feae3958eff107ce0ff297981f2ed515a19f16 (patch) | |
tree | 3714e1f1a96295541ae5656d31f63ba9696ba694 /test | |
parent | 944c620dfabbf46e7a96b96b5dad527d985492d3 (diff) | |
download | ruby-26feae3958eff107ce0ff297981f2ed515a19f16.tar.gz |
random.c: coerce before check negative
* random.c (rb_random_ulong_limited): coerce before check negative.
[Fixes GH-379]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@42542 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'test')
-rw-r--r-- | test/ruby/test_array.rb | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/test/ruby/test_array.rb b/test/ruby/test_array.rb index 5123ab5a94..b4f35af84d 100644 --- a/test/ruby/test_array.rb +++ b/test/ruby/test_array.rb @@ -2044,6 +2044,19 @@ class TestArray < Test::Unit::TestCase alias rand call end assert_raise(RuntimeError) {ary.shuffle!(random: gen)} + + zero = Object.new + def zero.to_int + 0 + end + gen_to_int = proc do |max| + zero + end + class << gen_to_int + alias rand call + end + ary = (0...10000).to_a + assert_equal(ary.rotate, ary.shuffle(random: gen_to_int)) end def test_sample @@ -2127,6 +2140,19 @@ class TestArray < Test::Unit::TestCase assert_equal([5000, 0, 5001, 2, 5002, 4, 5003, 6, 5004, 8, 5005], ary.sample(11, random: gen0)) ary.sample(11, random: gen1) # implementation detail, may change in the future assert_equal([], ary) + + half = Object.new + def half.to_int + 5000 + end + gen_to_int = proc do |max| + half + end + class << gen_to_int + alias rand call + end + ary = (0...10000).to_a + assert_equal(5000, ary.sample(random: gen_to_int)) end def test_cycle |