Method checkResponse

tests/testvalidator.cpp:1215–1222

        ValidatorMessages(nullptr, "invalid", "parsingerror", "validationdataerror");

    void checkResponse(Context *c, const ValidatorResult &r)
    {
        if (r) {
            c->response()->setBody("valid"_ba);
        } else {
            c->response()->setBody(r.errorStrings().constFirst());
        }
    }
};

void TestValidator::initTestCase()