diff --git a/test/test_parser.rb b/test/test_parser.rb
index 2831c9eb6..d18337002 100644
--- a/test/test_parser.rb
+++ b/test/test_parser.rb
@@ -11148,4 +11148,36 @@ def test_kwoptarg_with_kwrestarg_and_forwarded_args
       %q{},
       SINCE_3_2)
   end
+
+  def test_argument_forwarding_with_anon_rest_kwrest_and_block
+    assert_diagnoses(
+      [:error, :unexpected_token, { token: 'tBDOT3' }],
+      %q{def f(*, **, &); g(...); end},
+      %q{},
+      SINCE_3_2)
+
+    assert_diagnoses(
+      [:error, :no_anonymous_restarg],
+      %q{def f(...); g(*); end},
+      %q{},
+      SINCE_3_2)
+
+    assert_diagnoses(
+      [:error, :no_anonymous_restarg],
+      %q{def f(...); g(0, *); end},
+      %q{},
+      SINCE_3_2)
+
+    assert_diagnoses(
+      [:error, :no_anonymous_kwrestarg],
+      %q{def f(...); g(**); end},
+      %q{},
+      SINCE_3_2)
+
+    assert_diagnoses(
+      [:error, :no_anonymous_kwrestarg],
+      %q{def f(...); g(x: 1, **); end},
+      %q{},
+      SINCE_3_2)
+  end
 end