UniAsserter - make it easier to share data between assertions

[mkouba]

Description

Currently, if you want to share some data the only way is to use some "external" holder, e.g.

@RunOnVertxContext
public void testSomething(UniAsserter asserter) {
   AtomicReference<Foo> holder = new AtomicReference<>();
   asserter.execute(() -> {
      Foo f = new Foo();
      // do something with Foo
      holder.set(f);
   }
   asserter.assertThat(() -> findAnotherFoo(), f -> assertEquals(f.getName(), holder.get().getName()));
}

Implementation ideas

We could add some method directly to the UniAsserter or even consider Mutiny context passing API.

[mkouba]

CC @geoand

[geoand]

Do you have examples of how you want to use this?

[mkouba]

Do you have examples of how you want to use this?

The simplest possible example could be:

@RunOnVertxContext
public void testSomething(UniAsserter asserter) {
   asserter.execute(() -> {
      Foo f = new Foo();
      asserter.putData(f);
   }
   asserter.assertThat(() -> findAnotherFoo(), f -> assertEquals(f.getName(), asserter.getData().getName()));
}

The asserted data can be stored in a concurrent Map<String,Object> in UniAsserter; asserter.getData() could delegate to asserter.getData("defaultKey") and asserter.putData(value) could delegate to asserter.putData("defaultKey", value). This way you would not need any external holder.

[geoand]

Sounds good to me. Do you have something already?

[mkouba]

Not yet but I can send a pull request later today ;-).

[geoand]

Cool, thanks!