diff options
Diffstat (limited to 'test/ruby/test_array.rb')
| -rw-r--r-- | test/ruby/test_array.rb | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/test/ruby/test_array.rb b/test/ruby/test_array.rb index 66251b9fb0..797ae95e97 100644 --- a/test/ruby/test_array.rb +++ b/test/ruby/test_array.rb @@ -1114,6 +1114,33 @@ class TestArray < Test::Unit::TestCase assert_not_include(a, [1,2]) end + def test_monkey_patch_include? + assert_separately([], "#{<<~"begin;"}\n#{<<~'end;'}", timeout: 30) + begin; + $-w = false + class Array + alias :old_include? :include? + def include? x + return true if x == :always + old_include?(x) + end + end + def test + a, c, always = :a, :c, :always + [ + [:a, :b].include?(a), + [:a, :b].include?(c), + [:a, :b].include?(always), + ] + end + v = test + class Array + alias :include? :old_include? + end + assert_equal [true, false, true], v + end; + end + def test_intersect? a = @cls[ 1, 2, 3] assert_send([a, :intersect?, [3]]) |