Module data fixtures for @magentoDataFixtureBeforeTransaction annotations

[Vinai]

Description (*)

Extend the option to specify a module based data fixture files for integration tests to the @magentoDataFixtureBeforeTransaction annotation.
Previously they where only available for the @magentoDataFixture annotation.

The syntax is the same:

@magentoDataFixtureBeforeAnnotation Foo_DataFixtureDummy::Test/Integration/foo.php

There is no backward compatibility break associated with this commit.

The PR also adds previously missing test coverage for same functionality for the @magentoDataFixture test annotation. Since the code from this PR is identical to that code, I decided against adding a test for @magentoDataFixtureBeforeTransaction, too.

Fixed Issues (if relevant)

There is no relevant open issue I'm aware of.

Manual testing scenarios (*)

1. Create module
2. Create a Integration Test within the module
3. Add a annotation pointing to a file within the module, for example:
   @magentoDataFixtureBeforeTransaction Magento_InventoryCatalog::Test/_file/products_all_types.php
4. Run the test and observe the fixture being applied.

Contribution checklist (*)

• Pull request has a meaningful description of its purpose
• All commits are accompanied by meaningful commit messages
• All new or changed code is covered with unit/integration tests (if applicable)
• All automated tests passed successfully (all builds on Travis CI are green)

[magento-engcom-team]

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[magento-engcom-team]

Hi @larsroettig, thank you for the review.
ENGCOM-4384 has been created to process this Pull Request

[Vinai]

Thanks for your review @larsroettig. I've added a @SuppressWarnings(PHPMD.StaticAccess) to the testModuleDataFixture test so the static code analysis doesn't complain.

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