Improve test coverage of FileSystem and Path libraries

[lydia-duncan]

The directories test/modules/standard/FileSystem/ and test/modules/standard/Path/ contain many tests of the functions and methods defined in those libraries. However, there are still plenty of edge cases that are not covered.

I intend to populate this issue with places that I think testing is lacking. This is intended for my own bookkeeping, but others are welcome to explore and add tests.

FileSystem:

• [ ] chdir
  • only a couple of tests. Could probably do with more multilocale v. single locale tests
• [ ] chmod
  • is a little too linear, should have some out of order tests
• [ ] copy
  • need some tests when the destination is a directory, after that support is added
• [ ] cwd
  • see chdir
• [ ] exists?
• [ ] findfiles?
• [ ] getGID
  • definitely gotta be missing some edge cases
• [ ] getMode
  • testing is too linear, should have some out of order tests
• [ ] getFileSize
• [ ] getUID
  • the tricky part about this and getGID is getting the directory to be in a state start_test can use and clean up in order to exercise the edge cases I am missing
• [ ] glob?
• [ ] isDir
  • more error case coverage would be good
• [ ] isFile
  • more error case coverage would be good

... (more to follow)

[lydia-duncan]

These tests are actually hard to write, probably not a good first issue after all