Java 测试 Spring ExceptionalHandler

Question

我有一个带有控制器和服务的 springboot 项目。还有一个像 -

这样的 GlobalExceptionHandler

public class GlobalExceptionHandler extends ResponseEntityExceptionHandler {
 @ExceptionHandler(DataIntegrityViolationException.class)
  public ResponseEntity<Object> handle(DataIntegrityViolationException e, WebRequest request) {
    ....

     String requestPath = ((ServletWebRequest)request).getRequest().getRequestURI();

    // I am using this requestPath in my output from springboot
   ...

  }
}

谁能告诉我如何在我的单元测试中编写 mock class ((ServletWebRequest)request).getRequest().getRequestURI()

Answer 1

遗憾的是，Mockito 不支持替换最终方法。您可以使用其他模拟框架，例如 PowerMock。

在这种情况下，我更喜欢用受保护的方法消除模拟的需要：

public class GlobalExceptionHandler extends ResponseEntityExceptionHandler {

    @ExceptionHandler(DataIntegrityViolationException.class)
    public ResponseEntity<Object> handle(final DataIntegrityViolationException e, final WebRequest request) {

        final String requestPath = getRequestUri(request);

        return ResponseEntity.ok().body(requestPath);
    }

    protected String getRequestUri(final WebRequest request) {
        return ((ServletWebRequest) request).getRequest().getRequestURI();
    }
}

和匿名class在测试中：

public class GlobalExceptionHandlerTests {

    private final GlobalExceptionHandler handler = new GlobalExceptionHandler() {
        @Override
        protected String getRequestUri(final org.springframework.web.context.request.WebRequest request) {
            return "http://localhost.me";
        };
    };

    @Test
    void test() throws Exception {

        final ResponseEntity<Object> handled = handler.handle(new DataIntegrityViolationException(""),
                null);
        assertEquals("http://localhost.me", handled.getBody());
    }
}

Java 测试 Spring ExceptionalHandler

Java Test for Spring ExceptionalHandler

java

exceptionhandler

spring-boot

controller-advice