test/keyword_args_test.rb in invokr-0.0.4 vs test/keyword_args_test.rb in invokr-0.0.5

@@ -27,9 +27,24 @@
     def test_querying_optional_keyword_argument
       method = Invokr.query_method TestMethodBank.method :optional_keyword_argument
 
       assert_equal [:album], method.optional_dependencies
     end
+
+    def test_passing_in_splat_raises_error
+      error = assert_raises Invokr::UnsupportedArgumentsError do
+        Invokr.invoke(
+          method: :keyword_splat_argument,
+          on:     TestMethodBank,
+          with:   { guitarist: 'trey' },
+        )
+      end
+
+      assert_equal(
+        "unsupported splat argument(s) `rest' when invoking method `keyword_splat_argument' on #<TestMethodBank:0xdeadbeef>",
+        error.message,
+      )
+    end
   end
 
   class RequiredKeywordArgsTest < Minitest::Test
     def setup
       skip unless RUBY_VERSION >= '2.1'