diff options
Diffstat (limited to 'test/ruby/test_enumerator.rb')
-rw-r--r-- | test/ruby/test_enumerator.rb | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/test/ruby/test_enumerator.rb b/test/ruby/test_enumerator.rb index 31382b03b1..8645b7acf7 100644 --- a/test/ruby/test_enumerator.rb +++ b/test/ruby/test_enumerator.rb @@ -91,6 +91,25 @@ class TestEnumerator < Test::Unit::TestCase assert_equal([[1,0],[2,1],[3,2]], @obj.to_enum(:foo, 1, 2, 3).with_index.to_a) end + def test_with_memo + r = 1..10 + assert_equal([55, 3628800], (1..10).each.with_memo([0,1]) {|i, memo| + memo[0] += i + memo[1] *= i + }) + + a = [2,5,2,1,5,3,4,2,1,0] + a.delete_if.with_memo({}) {|i, seen| + if seen.key?(i) + true + else + seen[i] = true + false + end + } + assert_equal([2, 5, 1, 3, 4, 0], a) + end + def test_next_rewind e = @obj.to_enum(:foo, 1, 2, 3) assert_equal(1, e.next) |