如何模拟 RequestContext.getCurrentContext()？

Question

I am new bee here stuck in one problem regarding Zuul. I am writing test cases for Zuul filters first I want to know do I need to write UT's for my Zuul filters if yes then I am writing unit test of shouldFilter() method of my zuul filter in which I have to mock requestContext .

How can I achieve this goal ?

I have already mocked HttpServletRequest and RequestContext but when I go in debug mode it shows as null .. what am I missing ?

@Override
public boolean shouldFilter() {

    RequestContext requestContext = RequestContext.getCurrentContext();
    HttpServletRequest request = requestContext.getRequest();
    if (request.getHeader(Constants.AUTHORIZATION.getValue()) != null) {
        return true;
    }
    return false;
}

That is my original method

@Test
public void testShouldFilter(){

    MockHttpServletRequest request = new MockHttpServletRequest(context);
    request.addHeader("Authorization","123");
    RequestContext rc = new RequestContext();
    rc.setRequest(request);

    Mockito.when(requestContext.getCurrentContext().getRequest()).thenReturn(request);
    doReturn(request).when(requestContext).getRequest();
    doReturn(rc).when(requestContext)
    Mockito.when(request.getHeader()).thenReturn(rc);
    Mockito.when(RequestContextHolder.(Constants.AUTHORIZATION.getValue())).thenReturn(request.getHeader("Authorization"));
   boolean Sf = authorizationFilter.shouldFilter();
    Assert.assertFalse(Sf);
}

That is my Unit test

and Sorry for bad English

I expect request should have any mock object so that it can compare header value but its returning null.

Answer 1

RequestContext.testSetCurrentContext(new RequestContext());

or

MockHttpServletRequest request = new MockHttpServletRequest("GET", "/url");
RequestContext context = new RequestContext();
context.setRequest(request);
RequestContext.testSetCurrentContext(context);

Unit tests for filters are not something super good, but why not, it is up to you