Missing Generate Patch Tests

[rnveach]

Identified at https://github.com/checkstyle/patch-filters/blob/master/src/test/java/com/github/checkstyle/generatepatchfile/GeneratePatchFileTest.java#L26 ,

The test class has no tests inside. Everything inside com.github.checkstyle.generatepatchfile is uncovered.

Tests should be added for this package to cover functionality.

[romani]

It is because we abandoned generation and rely on smart outside tools to make it.

[rnveach]

Then should we remove code completely?

[romani]

Let's keep it for now, as we never finished testing on real project for long period to be sure our idea was correct. As we already see patches on different OS looks a bit different.

But we can remove test file for sure.