specify posix.fnmatch:

- before:

    fnm = require "posix.fnmatch"

- describe fnmatch:

  - before:

      fnmatch, FNM_PATHNAME, FNM_PERIOD, FNM_NOMATCH =

        fnm.fnmatch, fnm.FNM_PATHNAME, fnm.FNM_PERIOD, fnm.FNM_NOMATCH

  - context with bad arguments:

      badargs.diagnose (fnmatch, "(string, string, ?int)")

  - it matches a file path against itself:

      expect (fnmatch ("test", "test")).to_be (0)

  - "it matches * against any filename characters":

      expect (fnmatch ("tes*", "test")).to_be (0)

      expect (fnmatch ("tes*", "test2")).to_be (0)

      expect (fnmatch ("*t*", "test")).to_be (0)

  - "it matches ? against a single filename character":

      expect (fnmatch ("tes?", "test")).to_be (0)

      expect (fnmatch ("t???", "test")).to_be (0)

      expect (fnmatch ("tes?", "tes")).to_be (FNM_NOMATCH)

      expect (fnmatch ("tes?", "test2")).to_be (FNM_NOMATCH)

  - "it doesn't match path separators with FNM_PATHNAME":

      expect (fnmatch ("*test", "/test")).to_be (0)

      expect (fnmatch ("*test", "/test", FNM_PATHNAME)).to_be (FNM_NOMATCH)

  - "it doesn't match periods with FNM_PERIOD":

      expect (fnmatch ("*test", ".test")).to_be (0)

      expect (fnmatch ("*test", ".test", FNM_PERIOD)).to_be (FNM_NOMATCH)