Function testLogging

test/test_Logging/TestLogging.cpp:125–217

* Test Logging. * * Note: In order to let these tests pass the formatting of the expected logMessage has to stay directly after the LogMessage (__LINE__-1), * otherwise the tests will fail. */

 * otherwise the tests will fail.
 */
static void testLogging()
{
    TestLogger      myTestLogger;
    LogSinkPrinter  myLogSink("test", &myTestLogger);
    const char*     printBuffer     = nullptr;
    const char*     LOG_MODULE      = strrchr(__FILE__, '\\'); /* Windows backslash */
    const char*     TEST_STRING_1   = "TestMessage";
    const String    TEST_STRING_2   = "TestMessageAsString";
    char            expectedLogMessage[128U];
    int             lineNo          = 0;
    const size_t    TIMESTAMP_IDX   = 0U;
    const size_t    LOG_LEVEL_IDX   = LogSinkPrinter::TIMESTAMP_LEN + 1U;
    const size_t    FILENAME_IDX    = LOG_LEVEL_IDX + LogSinkPrinter::LOG_LEVEL_LEN + 1U;
    const size_t    MESSAGE_IDX     = LogSinkPrinter::MSG_INDEX;
    String          expected;

    /* If no windows backslash is found, maybe its a linux slash? */
    if (nullptr == LOG_MODULE)
    {
        LOG_MODULE = strrchr(__FILE__, '/');
    }

    /* No directory found in filename. */
    if (nullptr == LOG_MODULE)
    {
        LOG_MODULE = __FILE__;
    }
    /* Overstep backslash/slash. */
    else
    {
        ++LOG_MODULE;
    }

    /* Check initial LogLevel. */
    TEST_ASSERT_TRUE(Logging::getInstance().registerSink(&myLogSink));
    TEST_ASSERT_TRUE(Logging::getInstance().selectSink("test"));
    TEST_ASSERT_EQUAL(Logging::getInstance().getLogLevel() , Logging::LOG_LEVEL_INFO);

    /* Set LogLevel to LOGLEVEL_INFO. */
    Logging::getInstance().setLogLevel(Logging::LOG_LEVEL_INFO);
    TEST_ASSERT_EQUAL(Logging::getInstance().getLogLevel() , Logging::LOG_LEVEL_INFO);

    /* Set LogLevel to LOG_LEVEL_ERROR and trigger a LOG_INFO message. */
    Logging::getInstance().setLogLevel(Logging::LOG_LEVEL_ERROR);
    LOG_INFO(TEST_STRING_1);
    (void)snprintf(expectedLogMessage, sizeof(expectedLogMessage), "%s", "");
    printBuffer = myTestLogger.getBuffer();
    TEST_ASSERT_EQUAL_STRING(expectedLogMessage, printBuffer);

    /* Check expected error log output, with type const char* string. */
    LOG_ERROR(TEST_STRING_1); lineNo = __LINE__;

    /* Skip timestamp */

    /* Check log level */
    expected = "ERROR";
    TEST_ASSERT_EQUAL_STRING_LEN(expected.c_str(), &printBuffer[LOG_LEVEL_IDX], expected.length());