LogicException running test suite against database

[dcentrica]

Affected Version

silverstripe/framework 5.0.4
phpunit/phpunit 9.6.8

Description

This is a framework-only project. No silverstripe/cms package. The default test DB has the proper GRANTs set but when I'm trying to run tests using the database, it results in the error:

#> ./vendor/bin/phpunit
PHPUnit 9.6.8 by Sebastian Bergmann and contributors.

E                                                                   1 / 1 (100%)

Time: 00:01.129, Memory: 20.00 MB

There was 1 error:

1) Path\To\My\Tests\ServerTest::testMethodsAllowed
LogicException: getItemPath returned null for Path\To\My\Tests\ServerTest. Try adding flush=1 to the test run.

Adding flush=all|1 of course does nothing, as neither does rm -rf /tmp/silverstripe-cache*

Similar issues are described here in framework version 4:

• https://forum.silverstripe.org/t/unit-tests-using-fixture-file-makes-tests-crash/1911/7
• Set up next major branches for development #10349

I've noticed that using one or both of the following in the test class, the error goes away and the suite passes (but of course I cannot develop any tests against the database).

class ServerTest extends FunctionalTest
{
   // commenting this, hides the error
   protected static $fixture_file = [
       'test/API/fixtures/ServerTest.yml',
   ];

  // commenting this, hides the error
  protected $usesDatabase = true;

  ....
}

Poking around in SapphireTest where the exception is thrown originally, there are two spots where it can be thrown, the guilty party is FixtureTestState::getTestAbsolutePath().

I've tried moving the test suite and its fixture into the top level "test" dir = same problem.

FYI my directory structure is as follows:

+ public
+ app
+ test
  - ServerTest.php
  - ServerTest.yml

Contents of phpunit.dist.xml

<phpunit bootstrap="vendor/silverstripe/framework/tests/bootstrap.php" colors="true">
    <testsuite name="Default">
        <directory>test</directory>
    </testsuite>
</phpunit>

Steps to Reproduce

#> ./vendor/bin/phpunit

[dcentrica]

Hmmm, after more screwing around with directory structures, I came up with this, which worked :-\

    /**
     * @var array
     */
    protected static $fixture_file = [
        'app/test/fixtures/ServerTest.yml',
    ];