Introduce consumeWith() methods in WebTestClient assertions [SPR-16574]

[spring-projects-issues]

Sam Brannen opened SPR-16574 and commented

In order to make it easier for developers to provide custom assertions when using WebTestClient, it would be beneficial to introduce dedicated consumeWith(...) methods in assertion classes such as JsonPathAssertions, HeaderAssertions, StatusAssertions, etc.

For a concrete use case, consider that you want to assert that a given evaluated JsonPath contains a specific substring. With MockMvc that's easy due to the support for Hamcrest matchers. However, with WebTestClient users have to jump through hoops to implement something as simple as containsString(...). See the linked Stack Overflow discussion for additional details.

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Affects: 5.0 GA

Reference URL: https://stackoverflow.com/questions/49149376/webtestclient-check-that-jsonpath-contains-sub-string

Issue Links:

• WebTestClient does not provide Hamcrest Matcher assertions for JSONPath [SPR-16729] #21270 WebTestClient does not provide Hamcrest Matcher assertions for JSONPath

[spring-projects-issues]

Rossen Stoyanchev commented

There are now both Consumer and hamcrest Matcher methods throughout the WebTestClient API.