We have REST webservice. It operates over JSON data representation. I would like to provide functional testing. I plan to use RestAssured framework. It provides understandable methods for testing correctness of output json.
Example, get("/method").then().assertThat().body("obj.field", equalTo(5));
But one problem arise: if json structure will change, all tests shall be invalid. For example, if field should be renamed to field2 we shall fix all test with occurrences of field. The problem is very similar to web pages testing problem, where we should check presence of some web elements, etc. It was solved introducing by Page Object pattern. Does some similar solution exist for testing of REST api or could you advise some elegant one?
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