if expected[i] != got[i] {
			return false
		}
	}

	// expected and got have same entries.
	return true
}

// teardown - cleans up test directories.
func teardown(testResults []result) {
	for _, r := range testResults {
		os.RemoveAll(r.dir)
	}
}

// TestReadDir - test function to run various readDir() tests.
func TestReadDir(t *testing.T) {