Method testQObjectCommandHandler

plugins/debuggercommon/tests/test_micommand.cpp:119–154

}

void TestMICommand::testQObjectCommandHandler()
{
    KDevMI::MI::UserCommand command(KDevMI::MI::NonMI, "command");
    command.setToken(1);

    // set the handler and invoke
    auto recordsHandled = 0;
    auto resultHandler = std::make_unique<TestCommandResultHandler>(recordsHandled);
    command.setHandler(resultHandler.get(), &TestCommandResultHandler::handleResult);

    KDevMI::MI::ResultRecord resultRecord1("reason");
    bool success = command.invokeHandler(resultRecord1);

    // check
    QVERIFY(success);
    QCOMPARE(recordsHandled, 1);

    // set the same resultHandler again, delete it, and verify that invoking does not crash
    command.setHandler(resultHandler.get(), &TestCommandResultHandler::handleResult);
    resultHandler.reset();

    const KDevMI::MI::ResultRecord resultRecord2("reason");
    success = command.invokeHandler(resultRecord2);

    // setHandler() created an internal handler wrapper that still exists, hence the invocation succeeds
    QVERIFY(success);
    // the TestCommandResultHandler instance was destroyed before the invocation, so recordsHandled is unchanged
    QCOMPARE(recordsHandled, 1);

    // invoke once more, this time without a handler (each invocation resets the command's handler to nullptr)
    success = command.invokeHandler(resultRecord2);

    // invoking a null handler fails
    QVERIFY(!success);
    QCOMPARE(recordsHandled, 1);
}


QTEST_GUILESS_MAIN(TestMICommand)