mass Unit Test?

[infoitservit]

How could I execute one time unit test for different test classes (with their own test methods) without incur in the error for which i can't create more than one Yii Application?

[hijarian]

Proper answer: you do not create a Yii Application object in the unit tests, as they will become integrated tests in such a case (unless, of course, you are testing this specific object itself without its environment).

Answer to exactly your own problem: PHPUnit has a special feature of bootstrap file:

./bin/phpunit --bootstrap=./tests/bootstrap.php tests/units

The above incantation will execute the ./tests/bootstrap.php before running all PHPUnit test classes from tests/units subdirectory. See in documentation, as usual: https://phpunit.de/manual/current/en/textui.html