PHPUnit and extended class

I think the setUp() and tearDown() are no problems.
But you can remove them, because you don't add any code
to the methods.

Code:

Test 'App\Libraries\FooTest::testFooNotBar' started
Test 'App\Libraries\FooTest::testFooNotBar' ended
Test 'App\TestUrlExists::testURLS' started
Test 'App\TestUrlExists::testURLS' ended
Test 'Warning' started
Test 'Warning' ended

The default configuration of PHPUnit looks for *Test.php.
So FooTest is okay, but why TestUrlExists and Warning?

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Do you have `phpunit.xml`?

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