@Test
  public void startupConfigurationIsLoggedToFileOnlyOnce() {
    LogFileAssert.assertThat(mainLogFile).containsOnlyOnce(startupConfiguration);
  }
Integration tests for logging of the startup configuration. Startup configuration consists of
{@link Configuration#STARTUP_CONFIGURATION} and {@link DistributionConfig#toLoggerString()}.
geode-core/src/integrationTest/java/org/apache/geode/logging/internal/StartupConfigurationLoggingIntegrationTest.java