Add Hash#except ENV#except [Feature #15822]

2 files changed, 19 insertions, 0 deletions

diff --git a/test/ruby/test_env.rb b/test/ruby/test_env.rb
index 6a44cf17dd..c1109cb2ef 100644
--- a/test/ruby/test_env.rb
+++ b/test/ruby/test_env.rb
@@ -287,6 +287,17 @@ class TestEnv < Test::Unit::TestCase
     assert_equal({"foo"=>"bar", "baz"=>"qux"}, ENV.slice("foo", "baz"))
   end
 
+  def test_except
+    ENV.clear
+    ENV["foo"] = "bar"
+    ENV["baz"] = "qux"
+    ENV["bar"] = "rab"
+    assert_equal({"bar"=>"rab", "baz"=>"qux", "foo"=>"bar"}, ENV.except())
+    assert_equal({"bar"=>"rab", "baz"=>"qux", "foo"=>"bar"}, ENV.except(""))
+    assert_equal({"bar"=>"rab", "baz"=>"qux", "foo"=>"bar"}, ENV.except("unknown"))
+    assert_equal({"bar"=>"rab"}, ENV.except("foo", "baz"))
+  end
+
   def test_clear
     ENV.clear
     assert_equal(0, ENV.size)
diff --git a/test/ruby/test_hash.rb b/test/ruby/test_hash.rb
index c0ec078403..e63fdf32fd 100644
--- a/test/ruby/test_hash.rb
+++ b/test/ruby/test_hash.rb
@@ -1036,6 +1036,14 @@ class TestHash < Test::Unit::TestCase
     assert_equal({}, {}.slice)
   end
 
+  def test_except
+    h = @cls[1=>2,3=>4,5=>6]
+    assert_equal({5=>6}, h.except(1, 3))
+    assert_equal({1=>2,3=>4,5=>6}, h.except(7))
+    assert_equal({1=>2,3=>4,5=>6}, h.except)
+    assert_equal({}, {}.except)
+  end
+
   def test_filter
     assert_equal({3=>4,5=>6}, @cls[1=>2,3=>4,5=>6].filter {|k, v| k + v >= 7 })