@Test
public void shutdownHookIsNotRegisteredByDefault() throws Exception {
TestLoggingApplicationListener listener = new TestLoggingApplicationListener();
System.setProperty(
LoggingSystem.class.getName(), TestShutdownHandlerLoggingSystem.class.getName());
listener.onApplicationEvent(new ApplicationStartedEvent(new SpringApplication(), NO_ARGS));
listener.initialize(this.context.getEnvironment(), this.context.getClassLoader());
assertThat(listener.shutdownHook).isNull();
}
@Test
public void shutdownHookCanBeRegistered() throws Exception {
TestLoggingApplicationListener listener = new TestLoggingApplicationListener();
System.setProperty(
LoggingSystem.class.getName(), TestShutdownHandlerLoggingSystem.class.getName());
EnvironmentTestUtils.addEnvironment(this.context, "logging.register_shutdown_hook:true");
listener.onApplicationEvent(new ApplicationStartedEvent(new SpringApplication(), NO_ARGS));
listener.initialize(this.context.getEnvironment(), this.context.getClassLoader());
assertThat(listener.shutdownHook).isNotNull();
listener.shutdownHook.start();
assertThat(TestShutdownHandlerLoggingSystem.shutdownLatch.await(30, TimeUnit.SECONDS)).isTrue();
}
