如何为 Spring Boot 服务器初始化程序编写 Mockito 测试

Question

有人可以告诉我如何编写mockito测试吗ServletInitializer？

package com.home.service.project.HomeServiceProject;

import org.springframework.boot.builder.SpringApplicationBuilder;
import org.springframework.boot.web.servlet.support.SpringBootServletInitializer;

public class ServletInitializer extends SpringBootServletInitializer {

    @Override
    protected SpringApplicationBuilder configure(SpringApplicationBuilder application) {
        return application.sources(HomeServiceProjectApplication.class);
    }

}

Answer 1

您可以编写以下单元测试，以确保SpringApplicationBuilder使用正确的源类进行调用，并且该方法返回您传递给的相同实例configure。

@ExtendWith(MockitoExtension.class)
//@RunWith(MockitoJUnitRunner.class) for JUnit 4
class ServletInitializerTest {

  @Mock
  private SpringApplicationBuilder springApplicationBuilder;

  @Test
  public void testIt() {
    ServletInitializer servletInitializer = new ServletInitializer();
    when(springApplicationBuilder.sources(HomeServiceProjectApplication.class)).thenReturn(springApplicationBuilder);

    SpringApplicationBuilder result = servletInitializer.configure(springApplicationBuilder);

    verify(springApplicationBuilder).sources(HomeServiceProjectApplication.class);
    assertEquals(springApplicationBuilder,result);
  }

}

我仍然会质疑这个单元测试的价值，而是尝试找到一种正确的方法来编写集成测试，以至少启动整个应用程序一次，以查看所有内容是否协同工作。