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-rw-r--r--test/ruby/test_pattern_matching.rb12
1 files changed, 12 insertions, 0 deletions
diff --git a/test/ruby/test_pattern_matching.rb b/test/ruby/test_pattern_matching.rb
index 36731e14f9..fbb934dc84 100644
--- a/test/ruby/test_pattern_matching.rb
+++ b/test/ruby/test_pattern_matching.rb
@@ -1570,6 +1570,18 @@ END
assert_equal false, (1 in 2)
end
+ def test_bug18990
+ {a: 0} => a:
+ assert_equal 0, a
+ {a: 0} => a:
+ assert_equal 0, a
+
+ {a: 0} in a:
+ assert_equal 0, a
+ {a: 0} in a:
+ assert_equal 0, a
+ end
+
################################################################
def test_single_pattern_error_value_pattern