1 files changed, 27 insertions, 2 deletions
diff --git a/test/ruby/test_symbol.rb b/test/ruby/test_symbol.rb
index f7f17b8d67..fa65dca225 100644
--- a/test/ruby/test_symbol.rb
+++ b/test/ruby/test_symbol.rb
@@ -36,6 +36,19 @@ class TestSymbol < Test::Unit::TestCase
     assert_eval_inspected(:"@@1", false)
     assert_eval_inspected(:"@", false)
     assert_eval_inspected(:"@@", false)
+    assert_eval_inspected(:"[]=")
+    assert_eval_inspected(:"[][]", false)
+    assert_eval_inspected(:"[][]=", false)
+    assert_eval_inspected(:"@=", false)
+    assert_eval_inspected(:"@@=", false)
+    assert_eval_inspected(:"@x=", false)
+    assert_eval_inspected(:"@@x=", false)
+    assert_eval_inspected(:"$$=", false)
+    assert_eval_inspected(:"$==", false)
+    assert_eval_inspected(:"$x=", false)
+    assert_eval_inspected(:"$$$=", false)
+    assert_eval_inspected(:"foo?=", false)
+    assert_eval_inspected(:"foo!=", false)
   end
 
   def assert_inspect_evaled(n)
@@ -77,12 +90,15 @@ class TestSymbol < Test::Unit::TestCase
   end
 
   def test_inspect_dollar
+    verbose_bak, $VERBOSE = $VERBOSE, nil
     # 4) :$- always treats next character literally:
     assert_raise(SyntaxError) {eval ':$-'}
     assert_raise(SyntaxError) {eval ":$-\n"}
     assert_raise(SyntaxError) {eval ":$- "}
     assert_raise(SyntaxError) {eval ":$-#"}
     assert_raise(SyntaxError) {eval ':$-('}
+  ensure
+    $VERBOSE = verbose_bak
   end
 
   def test_inspect_number
@@ -105,6 +121,14 @@ class TestSymbol < Test::Unit::TestCase
     end
   end
 
+  def test_inspect_under_gc_compact_stress
+    omit "compaction doesn't work well on s390x" if RUBY_PLATFORM =~ /s390x/ # https://github.com/ruby/ruby/pull/5077
+
+    EnvUtil.under_gc_compact_stress do
+      assert_inspect_evaled(':testing')
+    end
+  end
+
   def test_name
     assert_equal("foo", :foo.name)
     assert_same(:foo.name, :foo.name)
@@ -393,8 +417,9 @@ class TestSymbol < Test::Unit::TestCase
   def test_match_method
     assert_equal("bar", :"foobarbaz".match(/bar/).to_s)
 
-    o = Regexp.new('foo')
-    def o.match(x, y, z); x + y + z; end
+    o = Class.new(Regexp) {
+      def match(x, y, z) = x + y + z
+    }.new('foo')
     assert_equal("foobarbaz", :"foo".match(o, "bar", "baz"))
     x = nil
     :"foo".match(o, "bar", "baz") {|y| x = y }