add support for MockRestServiceServer to verify that a header does not exist [SPR-10771]

[spring-projects-issues]

John Mark opened SPR-10771 and commented

The current API for MockRestServiceServer and MockRestRequestMatchers does not allow a test to validate that a certain header value does not exist. Trying to do

.andExpect(header("Custom-Header", Matchers.nullValue()))

does not work because it requires the header to first exist, and then checks the Matcher. I would like to be able to so something like this:

.andExpect(header("Custom-Header").doesNotExist())

or something to that effect.

Unfortunately, I don't see any workaround for this until spring-test supports it. I was forced to use Mockito ArgumentCaptors in order to verify this requirement, but that meant that I couldn't use MockRestServiceServer.

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Affects: 3.2.3

Referenced from: commits 4bf5a02

[spring-projects-issues]

Rossen Stoyanchev commented

Good point. If you've time to do so, send a pull request through. Thanks!

[yalmuhaidib]

using Spring Boot release version 1.5.22 (spring framework 4.3.25) and could not find how to validate if a request header does not exist in MockRestRequestMatchers.

[sbrannen]

@bclozel, oops... you implemented that feature for MockMvc instead of MockRestServiceServer. 😉

I'll open a new issue to add similar support for MockRestServiceServer.