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-rw-r--r--bootstraptest/test_syntax.rb15
1 files changed, 15 insertions, 0 deletions
diff --git a/bootstraptest/test_syntax.rb b/bootstraptest/test_syntax.rb
index 3e4c79bece..0ba8f658f2 100644
--- a/bootstraptest/test_syntax.rb
+++ b/bootstraptest/test_syntax.rb
@@ -628,3 +628,18 @@ assert_match /illegal multibyte char/, %q{
STDERR.reopen(STDOUT)
eval("\"\xf0".force_encoding("utf-8"))
}, '[ruby-dev:32429]'
+
+# method ! and !=
+assert_equal 'true', %q{!false}
+assert_equal 'true', %q{1 == 1}
+assert_equal 'true', %q{1 != 2}
+assert_equal 'true', %q{
+ class C; def !=(obj); true; end; end
+ C.new != 1
+}
+assert_equal 'true', %q{
+ class C; def !@; true; end; end
+ !C.new
+}
+
+