Add DatabaseTestUtils

[Julien-R44]

Changes

• Add a DatabaseTestUtils class. Works as before.

  • testUtils.db().migrate()
  • testUtils.db().truncate()
  • testUtils.db().seed(),
    We can also pass a custom connectionName like testUtils.db('secondary').seed()

• Also, let me know if we should not keep it, but though it would be cool to include a testUtils.db().withGlobalTransaction() method that can be used like this :

   import testUtils from '@adonisjs/core/services/test_utils'
   
   test.group('', (group) => {
      group.each.setup(() => testUtils.db().withGlobalTransaction())
   })

So every test in this group will be wrapped a transaction that will be reverted at the end of the test

[Julien-R44]

tests will fail cause of the last two commits since we dont have TestUtils exported from @adonisjs/core/test_utils.

[thetutlage]

We should export TestUtils class from @adonisjs/core in order to be able to extend it with macros. Which export path should we use ? @adonisjs/core/test_utils' ? Let me know and I will make a PR on core

Yeah, we can export it from /test_utils submodule.

not sure about this one. Naively, i would say no, but : could it cause some problems to register testUtils bindings only in test environnement ?

We can use the container resolving hook. https://docs.adonisjs.com/guides/ioc-container#container-hooks

not sure here too. should we resolve the Ace binding immediately ?

Yeah, can be lazily resolved as someone uses one of the methods from the DatabaseTestUtils class.

[Julien-R44]

Should be all good. Let me just know if we keep withGlobalTransaction or not. Also if naming look correct to you

[thetutlage]

Looks good.

We will have to create a new doc under the testing group, inside the AdonisJS documentation covering the usage of these hooks