Update tests/basic_tests.cpp

tests/basic_tests.cpp

@@ -470,6 +470,9 @@ TYPED_TEST(basic_tests, set_invalid_port) {
   ASSERT_TRUE(url);
   ASSERT_FALSE(url->set_port("invalid80"));
   ASSERT_EQ(url->get_port(), "");
+  ASSERT_FALSE(url->set_port("80valid"));
+  ASSERT_TRUE(url->is_valid);
+  ASSERT_EQ(url->get_port(), "80");
   ASSERT_TRUE(url->is_valid);
   SUCCEED();
 }