Combining @SpringBootTest and @DataJpaTest leads to confusing error

[PWebb-Resmed]

The problem seems to occur in 1.4.0.M3 and 1.4.0.RC1, prior to M3 there's a totally different error.

I have a new application and a unit test, it works when running with the deprecated @SpringApplicationConfiguration , but not with the @SpringBootTest annotation. See the basic attached zip file.
test.zip

[snicoll]

@PWebb-Resmed that project is a bit weird. You are combining a @DataJpaTest with a regular @SpringBootTest that must start the servlet container.

So in one hand you're saying: "spring boot please only start the persistence layer and nothing else please because I want to focus on that" and on the other you're saying "start the container with that class and instead of mocking the MVC part, make sure to force the container to start".

I've removed @DataJpaTest and your project runs fine (with our without the classes attribute). I've also removed @SpringBootTest and replaced it with @DataJpaTest instead. Works fine as well.

TL;DR that project is invalid. But maybe we could do something to throw a different error?

[spring-projects-issues]

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