测试是否通过取决于PHP单元调用的方法

Question

I have a large number of tests in a PHP Unit test suite.

All tests will pass when running the complete suite, however when run individually, certain tests may pass or fail depending on how I call PHP Unit:

$ php phpunit --configuration phpunit.xml --filter FooIntegrationTest

PHPUnit 5.7.19 by Sebastian Bergmann and contributors.

................                                                  16 / 16 (100%)

Time: 3.97 seconds, Memory: 109.50MB

OK (16 tests, 36 assertions)

vs.

$ php phpunit --configuration phpunit.xml tests/Integration/FooIntegrationTest.php

PHPUnit 5.7.21 by Sebastian Bergmann and contributors.

..........F.F...                                                  16 / 16 (100%)

Time: 3.73 seconds, Memory: 111.75MB

FAILURES!
Tests: 16, Assertions: 36, Failures: 2.

The failures in question are unexpected results (ie the code runs just fine), no PHP errors or Exceptions.

The majority of tests will pass both ways, and there doesn't seem to be anything special about those tests that produce the above results.

Answer 1

Solved.... namespace conflict from an unrelated test class

phpunit ... FooIntegrationTest.php only opens & runs the single class file specfied

whereas phpunit ... --filter FooIntegrationTest will open every file in the suite to look for matching tests; which lead to a globally namespaced function in another file causing false pass.

Lesson learned: don't declare globally namespaced functions in unit test classes!