Wrong `projectRootPath` in `FunctionalTester`

[smirnov-e]

What steps will reproduce the problem?

Create test with functional tester

final class CitiesActionTest extends TestCase
{
    private ?FunctionalTester $tester;

    protected function setUp(): void
    {
        $this->tester = new FunctionalTester();
        $this->tester->bootstrapApplication(); // <-- no arguments
    }

What is the expected result?

Application bootstrapping does not throw errors or warnings.

What do you get instead?

 Test  tests/Functional/Data/CitiesActionTest.php:testSuccess
                                                                                                                                                                 
  [Warning] require_once(//autoload.php): Failed to open stream: No such file or directory at /app/vendor/yiisoft/yii-testing/src/TestApplicationRunner.php:182  
                                                                                                                                                                 
#1  /app/vendor/yiisoft/yii-testing/src/TestApplicationRunner.php:182
#2  /app/vendor/yiisoft/yii-testing/src/TestApplicationRunner.php:182
#3  /app/vendor/yiisoft/yii-testing/src/FunctionalTester.php:75
#4  /app/tests/Functional/Data/CitiesActionTest.php:23
#5  /app/vendor/bin/codecept:119

Additional info

\Yiisoft\Yii\Testing\FunctionalTester::bootstrapApplication without arguments expects application root to be 5 levels higher:

if ($projectRootPath === null) {
      $projectRootPath = dirname(__DIR__, 5);
}

in my case there should be dirname(__DIR__, 4).

Q	A
Version	dev-master#9f56e05f4b99b
PHP version	8.4
Operating system	Linux

[vjik]

Try to use HttpApplicationRunner directly. See example here:

https://github.com/yiisoft/app/blob/master/tests/Support/FunctionalTester.php#L37

[smirnov-e]

Passing correct path works fine with TestApplicationRunner.
So the question is «what is default project path»?
If it is <project path>/vendor, then I'll make PR to change to dirname(__DIR__, 4) or dirname(__FILE__, 5) because in <project path>/vendor/yiifost/yii-testing/src/FunctionalTester.php DIR is 3 levels deeper than vendor