How to use

merge

method

in

org.springframework.test.web.servlet.request.MockHttpServletRequestBuilder

@Override
public Object merge(@Nullable Object parent) {
  if (parent instanceof RequestBuilder) {
    if (parent instanceof MockHttpServletRequestBuilder) {
      MockHttpServletRequestBuilder copiedParent = MockMvcRequestBuilders.get("/");
      copiedParent.merge(parent);
      this.parentBuilder = copiedParent;
    }
    else {
      this.parentBuilder = (RequestBuilder) parent;
    }
    if (parent instanceof SmartRequestBuilder) {
      this.parentPostProcessor = (SmartRequestBuilder) parent;
    }
  }
  return this;
}

@Override
public Object merge(@Nullable Object parent) {
  if (parent == null) {
    return this;
  }
  if (parent instanceof MockHttpServletRequestBuilder) {
    super.merge(parent);
    if (parent instanceof MockMultipartHttpServletRequestBuilder) {
      MockMultipartHttpServletRequestBuilder parentBuilder = (MockMultipartHttpServletRequestBuilder) parent;
      this.files.addAll(parentBuilder.files);
      parentBuilder.parts.keySet().stream().forEach(name ->
          this.parts.putIfAbsent(name, parentBuilder.parts.get(name)));
    }
  }
  else {
    throw new IllegalArgumentException("Cannot merge with [" + parent.getClass().getName() + "]");
  }
  return this;
}

@Test  // SPR-12945
public void mergeInvokesDefaultRequestPostProcessorFirst() {
  final String ATTR = "ATTR";
  final String EXPECTED = "override";
  MockHttpServletRequestBuilder defaultBuilder =
      new MockHttpServletRequestBuilder(HttpMethod.GET, "/foo/bar")
          .with(requestAttr(ATTR).value("default"))
          .with(requestAttr(ATTR).value(EXPECTED));
  builder.merge(defaultBuilder);
  MockHttpServletRequest request = builder.buildRequest(servletContext);
  request = builder.postProcessRequest(request);
  assertEquals(EXPECTED, request.getAttribute(ATTR));
}

@Override
public Object merge(Object parent) {
  if (parent == null) {
    return this;
  }
  if (parent instanceof MockHttpServletRequestBuilder) {
    super.merge(parent);
    if (parent instanceof MockMultipartHttpServletRequestBuilder) {
      MockMultipartHttpServletRequestBuilder parentBuilder = (MockMultipartHttpServletRequestBuilder) parent;
      this.files.addAll(parentBuilder.files);
    }
  }
  else {
    throw new IllegalArgumentException("Cannot merge with [" + parent.getClass().getName() + "]");
  }
  return this;
}

@Override
public Object merge(Object parent) {
  if (parent instanceof RequestBuilder) {
    if (parent instanceof MockHttpServletRequestBuilder) {
      MockHttpServletRequestBuilder copiedParent = MockMvcRequestBuilders.get("/");
      copiedParent.merge(parent);
      this.parentBuilder = copiedParent;
    }
    else {
      this.parentBuilder = (RequestBuilder) parent;
    }
    if (parent instanceof SmartRequestBuilder) {
      this.parentPostProcessor = (SmartRequestBuilder) parent;
    }
  }
  return this;
}

@Override
public Object merge(@Nullable Object parent) {
  if (parent instanceof RequestBuilder) {
    if (parent instanceof MockHttpServletRequestBuilder) {
      MockHttpServletRequestBuilder copiedParent = MockMvcRequestBuilders.get("/");
      copiedParent.merge(parent);
      this.parentBuilder = copiedParent;
    }
    else {
      this.parentBuilder = (RequestBuilder) parent;
    }
    if (parent instanceof SmartRequestBuilder) {
      this.parentPostProcessor = (SmartRequestBuilder) parent;
    }
  }
  return this;
}

@Override
public Object merge(@Nullable Object parent) {
  if (parent == null) {
    return this;
  }
  if (parent instanceof MockHttpServletRequestBuilder) {
    super.merge(parent);
    if (parent instanceof MockMultipartHttpServletRequestBuilder) {
      MockMultipartHttpServletRequestBuilder parentBuilder = (MockMultipartHttpServletRequestBuilder) parent;
      this.files.addAll(parentBuilder.files);
      parentBuilder.parts.keySet().stream().forEach(name ->
          this.parts.putIfAbsent(name, parentBuilder.parts.get(name)));
    }
  }
  else {
    throw new IllegalArgumentException("Cannot merge with [" + parent.getClass().getName() + "]");
  }
  return this;
}