Start shared containers in beforeAll callback (Jupiter)

[kiview]

I've probably missed some edge cases, but all current tests are green.
We also explicitly don't support parallel test execution at this point.

Fixes #1019.

[michael-simons]

I took the freedom to have a look at the extensions. Reads good from my point of view.

What I didn't try out: How is the behaviour in regard to AfterAll? The closing of the containers is left to JUnit itself, right?

I probably would expect the container still being running in "my" after all methods.

[kiview]

So we are storing all containers inside the ExtensionContext.Store and wrap them in a CloseableResource, so Jupiter will stop them automatically.

Not really sure about the specific point in time this will occur though.

[jrehwaldt]

I tested this branch and from all I can tell it would fix the issue outlined in #1017 (see #1017 (comment) clarifying the situation together with a reproducer).

[kiview]

@jrehwaldt Thanks, sounds great.
I'll ping the others for having a look at it and then we can probably merge it.

[bsideup]

can we test it?

[bsideup]

Looks good in general. Although would be nice to test orElseThrow

[kiview]

@bsideup Yeah, I will add another ignored test and check it by hand.

[kiview]

So I don't really know a way to force the exception, I kind of think, it can't happen for a user.
I tried to following code:

class WrongExtensionUsageTests {

    @Testcontainers
    enum myEnum {
        FOOBAR
    }

    @Test
    void extension_throws_exception() {
        assert true;
    }

}

This won't execute the TestcontainersExtension class, I wonder why?

[rnorth]

Released in 1.10.4!