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Diffstat (limited to 'test/ruby/test_hash.rb')
-rw-r--r-- | test/ruby/test_hash.rb | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/test/ruby/test_hash.rb b/test/ruby/test_hash.rb index f79879c20a..eaff09d434 100644 --- a/test/ruby/test_hash.rb +++ b/test/ruby/test_hash.rb @@ -1069,6 +1069,19 @@ class TestHash < Test::Unit::TestCase assert_equal("FOO", h.shift) end + def test_shift_for_empty_hash + # [ruby-dev:51159] + h = @cls[] + 100.times{|n| + while h.size < n + k = Random.rand 0..1<<30 + h[k] = 1 + end + 0 while h.shift + assert_equal({}, h) + } + end + def test_reject_bang2 assert_equal({1=>2}, @cls[1=>2,3=>4].reject! {|k, v| k + v == 7 }) assert_nil(@cls[1=>2,3=>4].reject! {|k, v| k == 5 }) |