Spock框架如何测试spring引导应用程序上下文

 package com.test.cli;

 import org.springframework.boot.SpringApplication;
 import org.springframework.boot.autoconfigure.SpringBootApplication;
 import org.springframework.context.ConfigurableApplicationContext;

 @SpringBootApplication
 public class App {
  public static void main(String[] args) {
    ConfigurableApplicationContext context = SpringApplication.run(App.class, args);

    App app = context.getBean(App.class);
    app.start();
  }

  private void start() {
    System.out.print("App started ...");
  }

 }

 package com.test.cli

 import com.test.cli.App
 import org.springframework.beans.factory.annotation.Autowired
 import org.springframework.boot.test.context.SpringBootTest
 import org.springframework.context.ApplicationContext
 import spock.lang.Specification


 @SpringBootTest(classes = App.class)
 class AppSpecIT extends Specification {

  @Autowired
  ApplicationContext context

  def "it should boot Spring application successfully"() {
    expect: "application context exists"
    context != null
  }

 }

你可以在这个屏幕截图中看到,12到18行没有覆盖,我想修正一下:

如何使用Spock框架全面测试Spring Boot应用程序上下文?