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-rw-r--r--test/ruby/test_encoding.rb6
1 files changed, 6 insertions, 0 deletions
diff --git a/test/ruby/test_encoding.rb b/test/ruby/test_encoding.rb
index 6cb13fda9c..de96ebd17d 100644
--- a/test/ruby/test_encoding.rb
+++ b/test/ruby/test_encoding.rb
@@ -104,4 +104,10 @@ class TestEncoding < Test::Unit::TestCase
bug5279 = '[ruby-dev:44469]'
assert_ruby_status([], '$SAFE=4; "a".encode("utf-16be")', bug5279)
end
+
+ def test_compatible_p
+ ua = "abc".force_encoding(Encoding::UTF_8)
+ assert_equal(Encoding::UTF_8, Encoding.compatible?(ua, :abc))
+ assert_equal(nil, Encoding.compatible?(ua, 1))
+ end
end