diff options
Diffstat (limited to 'test')
| -rw-r--r-- | test/ruby/test_enumerator.rb | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/test/ruby/test_enumerator.rb b/test/ruby/test_enumerator.rb index 8a2417c5d5..f8a3b3e32a 100644 --- a/test/ruby/test_enumerator.rb +++ b/test/ruby/test_enumerator.rb @@ -130,5 +130,27 @@ class TestEnumerator < Test::Unit::TestCase assert_equal(3, e.next) assert_raise(StopIteration) { e.next } end + + def test_peek + a = [1] + e = a.each + assert_equal(1, e.peek) + assert_equal(1, e.peek) + assert_equal(1, e.next) + assert_raise(StopIteration) { e.peek } + assert_raise(StopIteration) { e.peek } + end + + def test_next_after_stopiteration + a = [1] + e = a.each + assert_equal(1, e.next) + assert_raise(StopIteration) { e.next } + assert_raise(StopIteration) { e.next } + e.rewind + assert_equal(1, e.next) + assert_raise(StopIteration) { e.next } + assert_raise(StopIteration) { e.next } + end end |