CODEWITHSUNDEEP
javaspring-bootunit-testingjunitmockito
sk001
sk001

Reputation: 29

how to mock http headers and body using junit?

I am working on a spring api gateway. There is a class LoggingMethods which i want to test. It contains two methods appendBodyRequest and logRequestNoBody.

Public class LoggingMethods{

  LoggingMethods(ServerHttpRequest request){
  }
  void appendBodyrequest(ByteBuffer byteBuffer , ServerHttpRequest request){
   Log.info("Headers:[{}] , Body:[{}]" , request.getHeaders().toSingleValueMap(),
   StandardCharsets.UTF_8.decode(byteBuffer)); 
  }
   
  void logRequestNoBody(ServerHttpRequest request){
  Log.info("{} response has no body.",request.getMethod());
  }
}

I am not sure how to implement unit testing with JUnit with mock headers and body. Appreciate your help and suggestions! Thanks.

Upvotes: 0

Views: 7519

Answers (1)

cadmy
cadmy

Reputation: 535

One of the approach is to implement ServerHttpRequest in your test method by yourself. It may look like this:

@Test
void testLogRequestNoBody() {
   ServerHttpRequest request = new ServerHttpRequest() {
      
        @Override
        public InputStream getBody() throws IOException {
            return null;
        }

        ...
       
        @Override
        public HttpHeaders getHeaders() {
            HttpHeaders httpHeaders = new HttpHeaders();
            httpHeaders.add("test", "test");
            return httpHeaders;
        }
    };

   LoggingMethods loggingMethods = new LoggingMethods(request);
   loggingMethods.logRequestNoBody(request);
}

You can specify the headers you need to test inside implemented method. You can implement remained ServerHttpRequest methods by returning null.

You don't need Mockito at all in this case. Using Mockito won't give any profit for that purpose.

Upvotes: 1

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