Chmod changes the permissions of the passed path to perm.

Dir creates a directory inside the test directory if it does not exist.

DirContents is a convenience method for writing many files inside the test directory.

FileContents writes a file called subPath with contents inside the test directory.

NewTestDir constructs a new temporary test directory.

TestDir is a temporary directory for use in testing.

FileContentMap specifies files that should be created as part of a parser test.

TestDirOpt performs setup on the test directory in question.