On Windows or macOS:
$ go test -v
=== RUN TestFS
fs_test.go:33: failed to test file system case insensitively: TestFS found errors:
expected but not found: FOO/BAR/FILE.TXT
--- FAIL: TestFS (0.00s)
FAIL
exit status 1
FAIL github.com/jakebailey/go-testfs-insensitive 0.006s