diff options
Diffstat (limited to 'test/ruby/test_rand.rb')
-rw-r--r-- | test/ruby/test_rand.rb | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/test/ruby/test_rand.rb b/test/ruby/test_rand.rb index b482773c00..9fabfc607f 100644 --- a/test/ruby/test_rand.rb +++ b/test/ruby/test_rand.rb @@ -1,4 +1,5 @@ require 'test/unit' +require_relative 'envutil' class TestRand < Test::Unit::TestCase def assert_random_int(ws, m, init = 0) @@ -514,4 +515,18 @@ END l.call end end + + def test_random_ulong_limited + def (gen = Object.new).rand(*) 1 end + assert_equal([2], (1..100).map {[1,2,3].sample(random: gen)}.uniq) + + def (gen = Object.new).rand(*) 100 end + e = assert_raise(RangeError) {[1,2,3].sample(random: gen)} + assert_match(/big 100\z/, e.message) + + bug7903 = '[ruby-dev:47061] [Bug #7903]' + def (gen = Object.new).rand(*) -1 end + e = assert_raise(RangeError) {[1,2,3].sample(random: gen)} + assert_match(/small -1\z/, e.message, bug7903) + end end |