This test compares strings. I find it critical to know this test will
start failing if, for example, a method that is expected to return the
string "" starts returning null. assertEquals() will not report this
and quite a bunch of other edge-cases.
Change-Id: I9a3f19f91b95aa384ca612f9a58c7af685306d57
* Unset globals to avoid tests that look like unit tests but actually rely on
globals
* move some tests out of unit directory so that the test suite will pass.
* Assert that tests which extend MediaWikiUnitTestCase are in a directory with
"/unit/" in its path name
Depends-On: I67b37b1bde94eaa3d4298d9bd98ac57995ce93b9
Depends-On: I90921679518ee95fe393f8b1bbd9134daf0ba032
Bug: T87781
Change-Id: I16691fc8ac063705ba0c2bc63b96c4534ca8660b
Out of 150 tests of SanitizerTest.php, 100 of them are pure unit tests
they are moved to the new file in the new structure, the rest stay
Change-Id: I366d37607abff4bcd624a56fb8b2299729fbc088
