qtestcase.cpp

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            printf(" Usage: %s [options] [testfunctions[:testdata]]...\n"
                   "    By default, all testfunction will be run.\n\n"
                   "%s", argv[0], testOptions);
            exit(0);
        } else if (strcmp(argv[i], "-functions") == 0) {
            qPrintTestSlots();
            exit(0);
        } else if (strcmp(argv[i], "-xml") == 0) {
            QTestLog::setLogMode(QTestLog::XML);
        } else if (strcmp(argv[i], "-lightxml") == 0) {
            QTestLog::setLogMode(QTestLog::LightXML);
        } else if (strcmp(argv[i], "-silent") == 0) {
            QTestLog::setVerboseLevel(-1);
        } else if (strcmp(argv[i], "-v1") == 0) {
            QTestLog::setVerboseLevel(1);
        } else if (strcmp(argv[i], "-v2") == 0) {
            QTestLog::setVerboseLevel(2);
        } else if (strcmp(argv[i], "-vs") == 0) {
            QSignalDumper::startDump();
        } else if (strcmp(argv[i], "-o") == 0) {
            if (i + 1 >= argc) {
                printf("-o needs an extra parameter specifying the filename\n");
                exit(1);
            } else {
                QTestLog::redirectOutput(argv[++i]);
            }
        } else if (strcmp(argv[i], "-eventdelay") == 0) {
            if (i + 1 >= argc) {
                printf("-eventdelay needs an extra parameter to indicate the delay(ms)\n");
                exit(1);
            } else {
                QTest::eventDelay = qToInt(argv[++i]);
            }
        } else if (strcmp(argv[i], "-keydelay") == 0) {
            if (i + 1 >= argc) {
                printf("-keydelay needs an extra parameter to indicate the delay(ms)\n");
                exit(1);
            } else {
                QTest::keyDelay = qToInt(argv[++i]);
            }
        } else if (strcmp(argv[i], "-mousedelay") == 0) {
            if (i + 1 >= argc) {
                printf("-mousedelay needs an extra parameter to indicate the delay(ms)\n");
                exit(1);
            } else {
                QTest::mouseDelay = qToInt(argv[++i]);
            }
        } else if (strcmp(argv[i], "-maxwarnings") == 0) {
            if (i + 1 >= argc) {
                printf("-maxwarnings needs an extra parameter with the amount of warnings\n");
                exit(1);
            } else {
                QTestLog::setMaxWarnings(qToInt(argv[++i]));
            }
        } else if (strcmp(argv[i], "-keyevent-verbose") == 0) {
            QTest::keyVerbose = 1;
        } else if (strcmp(argv[i], "-qws") == 0) {
            // do nothing
        } else if (argv[i][0] == '-') {
            printf("Unknown option: '%s'\n\n%s", argv[i], testOptions);
            exit(1);
        } else {
            int colon = -1;
            char buf[512], *data=0;
            for(int off = 0; *(argv[i]+off); ++off) {
                if (*(argv[i]+off) == ':') {
                    colon = off;
                    break;
                }
            }
            if(colon != -1) {
                *(argv[i]+colon) = '\0';
                data = qstrdup(argv[i]+colon+1);
            }
            QTest::qt_snprintf(buf, 512, "%s()", argv[i]);
            int idx = QTest::currentTestObject->metaObject()->indexOfMethod(buf);
            if (idx < 0 || !isValidSlot(QTest::currentTestObject->metaObject()->method(idx))) {
                printf("Unknown testfunction: '%s'\n", buf);
                printf("Available testfunctions:\n");
                qPrintTestSlots();
                exit(1);
            }
            ++QTest::lastTestFuncIdx;
            QTest::testFuncs[QTest::lastTestFuncIdx].function = idx;
            QTest::testFuncs[QTest::lastTestFuncIdx].data = data;
            QTEST_ASSERT(QTest::lastTestFuncIdx < 512);
        }
    }
}

struct QTestDataSetter
{
    QTestDataSetter(QTestData *data)
    {
        QTestResult::setCurrentTestData(data);
    }
    ~QTestDataSetter()
    {
        QTestResult::setCurrentTestData(0);
    }
};

/*!
    \internal

    Call init(), slot_data(), slot(), slot(), slot()..., cleanup()
    If data is set then it is the only test that is performed

    If the function was successfully called, true is returned, otherwise
    false.
 */
static bool qInvokeTestMethod(const char *slotName, const char *data=0)
{
    QTEST_ASSERT(slotName);

    char member[512];
    QTestTable table;

    char *slot = qstrdup(slotName);
    slot[strlen(slot) - 2] = '\0';
    QTestResult::setCurrentTestFunction(slot);

    const QTestTable *gTable = QTestTable::globalTestTable();
    const int globalDataCount = gTable->dataCount();
    int curGlobalDataIndex = 0;

    /* For each test function that has a *_data() table/function, do: */
    do {
        if (!gTable->isEmpty())
            QTestResult::setCurrentGlobalTestData(gTable->testData(curGlobalDataIndex));

        if (curGlobalDataIndex == 0) {
            QTestResult::setCurrentTestLocation(QTestResult::DataFunc);
            QTest::qt_snprintf(member, 512, "%s_data", slot);
            QMetaObject::invokeMethod(QTest::currentTestObject, member, Qt::DirectConnection);
            // if we encounter a SkipAll in the _data slot, we skip the whole
            // testfunction, no matter how much global data exists
            if (QTestResult::skipCurrentTest()) {
                QTestResult::setCurrentGlobalTestData(0);
                break;
            }
        }

        bool foundFunction = false;
        if (!QTestResult::skipCurrentTest()) {
            int curDataIndex = 0;
            const int dataCount = table.dataCount();
            QTestResult::setSkipCurrentTest(false);

            /* For each entry in the data table, do: */
            do {
                if (!data || !qstrcmp(data, table.testData(curDataIndex)->dataTag())) {
                    foundFunction = true;
                    QTestDataSetter s(table.isEmpty() ? static_cast<QTestData *>(0)
                                                      : table.testData(curDataIndex));
                    QTestResult::setCurrentTestLocation(QTestResult::InitFunc);
                    QMetaObject::invokeMethod(QTest::currentTestObject, "init");
                    if (QTestResult::skipCurrentTest())
                        break;

                    QTestResult::setCurrentTestLocation(QTestResult::Func);
                    if (!QMetaObject::invokeMethod(QTest::currentTestObject, slot,
                                                  Qt::DirectConnection)) {
                        QTestResult::addFailure("Unable to execute slot", __FILE__, __LINE__);
                        break;
                    }

                    QTestResult::setCurrentTestLocation(QTestResult::CleanupFunc);
                    QMetaObject::invokeMethod(QTest::currentTestObject, "cleanup");
                    QTestResult::setCurrentTestLocation(QTestResult::NoWhere);

                    if (QTestResult::skipCurrentTest())
                        // check whether SkipAll was requested
                        break;
                    if (data)
                        break;
                }
                ++curDataIndex;
            } while (curDataIndex < dataCount);
        }

        if (data && !foundFunction) {
            printf("Unknown testdata for function %s: '%s'\n", slotName, data);
            printf("Available testdata:\n");
            for(int i = 0; i < table.dataCount(); ++i)
                printf("%s\n", table.testData(i)->dataTag());
            return false;
        }

        QTestResult::setCurrentGlobalTestData(0);
        ++curGlobalDataIndex;
    } while (curGlobalDataIndex < globalDataCount);

    QTestResult::finishedCurrentTestFunction();
    QTestResult::setSkipCurrentTest(false);
    QTestResult::setCurrentTestData(0);
    delete[] slot;

    return true;
}

void *fetchData(QTestData *data, const char *tagName, int typeId)
{
    QTEST_ASSERT(typeId);
    QTEST_ASSERT_X(data, "QTest::fetchData()", "Test data requested, but no testdata available.");
    QTEST_ASSERT(data->parent());

    int idx = data->parent()->indexOf(tagName);

    if (idx == -1 || idx >= data->dataCount()) {
        qFatal("QFETCH: Requested testdata '%s' not available, check your _data function.",
                tagName);
    }

    if (typeId != data->parent()->elementTypeId(idx)) {
        qFatal("Requested type '%s' does not match available type '%s'.",
               QMetaType::typeName(typeId),
               QMetaType::typeName(data->parent()->elementTypeId(idx)));
    }

    return data->data(idx);
}

/*!
  \fn char* QTest::toHexRepresentation(const char *ba, int length)
  
  Returns a pointer to a string that is the string \a ba represented
  as a space-separated sequence of hex characters. If the input is
  considered too long, it is truncated. A trucation is indicated in
  the returned string as an ellipsis at the end.

  \a length is the length of the string \a ba. 
 */
char *toHexRepresentation(const char *ba, int length)
{
    if(length == 0)
        return qstrdup("");

    /* We output at maximum about maxLen characters in order to avoid
     * running out of memory and flooding things when the byte array
     * is large.
     *
     * maxLen can't be for example 200 because QTestLib is sprinkled with fixed
     * size char arrays.
     * */
    const int maxLen = 50;
    const int len = qMin(maxLen, length);
    char *result = 0;

    if(length > maxLen) {
        const int size = len * 3 + 4;
        result = new char[size];

        char *const forElipsis = result + size - 5;
        forElipsis[0] = ' ';
        forElipsis[1] = '.';
        forElipsis[2] = '.';
        forElipsis[3] = '.';
        result[size - 1] = '\0';
    }
    else {
        const int size = len * 3;
        result = new char[size];
        result[size - 1] = '\0';
    }

    const char toHex[] = "0123456789ABCDEF";
    int i = 0;
    int o = 0;

    while(true) {
        const char at = ba[i];

        result[o] = toHex[(at >> 4) & 0x0F];
        ++o;
        result[o] = toHex[at & 0x0F];

        ++i;
        ++o;
        if(i == len)
            break;
        else {
            result[o] = ' ';
            ++o;
        }
    }

    return result;
}

} // namespace

/*!
    Executes tests declared in \a testObject. In addition, the private slots
    \c{initTestCase()}, \c{cleanupTestCase()}, \c{init()} and \c{cleanup()}
    are executed if they exist. See \l{Creating a test} for more details.

    Optionally, the command line arguments \a argc and \a argv can be provided.
    For a list of recognized arguments, read \l {QTestLib Command Line Arguments}.

    For stand-alone tests, the convenience macro \l QTEST_MAIN() can
    be used to declare a main method that parses the command line arguments
    and executes the tests.

    The following example will run all tests in \c MyFirstTestObject and
    \c{MySecondTestObject}:

    \code
    MyFirstTestObject test1;
    QTest::qExec(&test1);

    MySecondTestObject test2;
    QTest::qExec(&test2);
    \endcode

    Note: This function is not reentrant, only one test can run at a time. A
    test that was executed with qExec() can't run another test via qExec() and
    threads are not allowed to call qExec() simultaneously.

    \sa QTEST_MAIN()
*/
int QTest::qExec(QObject *testObject, int argc, char **argv)
{
 #ifndef QT_NO_EXCEPTIONS
     try {
 #endif

 #if defined(Q_OS_WIN)
     SetErrorMode(SetErrorMode(0) | SEM_NOGPFAULTERRORBOX);
 #endif

    QTestResult::reset();

    QTEST_ASSERT(testObject);
    QTEST_ASSERT(!currentTestObject);
    currentTestObject = testObject;

    const QMetaObject *metaObject = testObject->metaObject();
    QTEST_ASSERT(metaObject);

    QTestResult::setCurrentTestObject(metaObject->className());
    qParseArgs(argc, argv);

    QTestLog::startLogging();

    QTestResult::setCurrentTestFunction("initTestCase");
    QTestResult::setCurrentTestLocation(QTestResult::DataFunc);
    QTestTable::globalTestTable();
    QMetaObject::invokeMethod(testObject, "initTestCase_data", Qt::DirectConnection);

    if (!QTestResult::skipCurrentTest() && !QTest::currentTestFailed()) {
        QTestResult::setCurrentTestLocation(QTestResult::InitFunc);
        QMetaObject::invokeMethod(testObject, "initTestCase");

        // finishedCurrentTestFunction() resets QTestResult::testFailed(), so use a local copy.
        const bool previousFailed = QTestResult::testFailed();
        QTestResult::finishedCurrentTestFunction();

        if(!QTestResult::skipCurrentTest() && !previousFailed) {

            if (lastTestFuncIdx >= 0) {
                for (int i = 0; i <= lastTestFuncIdx; ++i) {
                    if (!qInvokeTestMethod(metaObject->method(testFuncs[i].function).signature(),
                                           testFuncs[i].data))
                        break;
                }
            } else {
                int methodCount = metaObject->methodCount();
                for (int i = 0; i < methodCount; ++i) {
                    QMetaMethod slotMethod = metaObject->method(i);
                    if (!isValidSlot(slotMethod))
                        continue;
                    if (!qInvokeTestMethod(slotMethod.signature()))
                        break;
                }
            }
        }

        QTestResult::setSkipCurrentTest(false);
        QTestResult::setCurrentTestFunction("cleanupTestCase");
        QMetaObject::invokeMethod(testObject, "cleanupTestCase");
    }
    QTestResult::finishedCurrentTestFunction();
    QTestResult::setCurrentTestFunction(0);
    QTestTable::clearGlobalTestTable();

 #ifndef QT_NO_EXCEPTIONS
     } catch (...) {
         QTestResult::addFailure("Caught unhandled exception", __FILE__, __LINE__);
         if (QTestResult::currentTestFunction()) {
             QTestResult::finishedCurrentTestFunction();
             QTestResult::setCurrentTestFunction(0);
         }

         QTestLog::stopLogging();
 #ifdef Q_OS_WIN
         // rethrow exception to make debugging easier
         throw;
 #endif
         return -1;
     }
 #endif

    QTestLog::stopLogging();
    currentTestObject = 0;
#if defined(QTEST_NOEXITCODE) || defined(QT_BUILD_INTERNAL)
    return 0;
#else
    return QTestResult::failCount();
#endif
}

/*! \internal
 */
void QTest::qFail(const char *statementStr, const char *file, int line)
{
    QTestResult::addFailure(statementStr, file, line);
}

/*! \internal
 */
bool QTest::qVerify(bool statement, const char *statementStr, const char *description,
                   const char *file, int line)
{
    return QTestResult::verify(statement, statementStr, description, file, line);
}