code: @Test public void logsDebugOnError(){
    AnnotationConfigApplicationContext context=new AnnotationConfigApplicationContext();
    this.initializer.initialize(context);
    context.register(ErrorConfig.class);
    try {
      context.refresh();
      fail("Did not error");
    }
   catch (  Exception ex) {
      this.initializer.onApplicationEvent(new ApplicationFailedEvent(new SpringApplication(),new String[0],context,ex));
    }
    assertThat(this.debugLog.size(),not(equalTo(0)));
    assertThat(this.infoLog.size(),equalTo(0));
  }
  