fixing issue when url is /

[benjamin-hubert]

No description provided.

[aik099]

This PR corresponds to be #624 issue.

[aik099]

Related PR with query parameter not handled by same cleanUrl method: #566

[stof]

This needs to be covered by a test

[aik099]

I guess test, that asserts that waning/notice is no longer happens when url is /. Since PHPUnit converts all warnings/notices to exceptions (not sure if it's a default behavior and that we haven't explicitly disabled it for Mink test suite) we can easily put @expectedException annotation to catch them.

[stof]

@aik099 actually not using @expectedException, because we don't expect an exception.
What the test should do is doing an assertion with such an URL. And the fact that there is a notice in master would make the test error out.

[aik099]

OK. @stof have taken a look at associated issue that also changes cleanUrl method, which already have tests: #566 ? Can it be merged?

[stof]

Well, this bugfix is still not covered by tests to avoid regressions

[stof]

I merged #616 instead as it was first and I preferred the way the code was formatted.