| from __future__ import absolute_import |
| import unittest |
| import encodings |
| import encodings.aliases |
| from modulegraph import util |
| import sys |
| |
| try: |
| from io import BytesIO |
| except ImportError: |
| from cStringIO import StringIO as BytesIO |
| |
| class TestUtil (unittest.TestCase): |
| def test_imp_find_module(self): |
| fn = util.imp_find_module('encodings.aliases')[1] |
| self.assertTrue(encodings.aliases.__file__.startswith(fn)) |
| |
| def test_imp_walk(self): |
| imps = list(util.imp_walk('encodings.aliases')) |
| self.assertEqual(len(imps), 2) |
| |
| self.assertEqual(imps[0][0], 'encodings') |
| self.assertTrue(encodings.__file__.startswith(imps[0][1][1])) |
| |
| self.assertEqual(imps[1][0], 'aliases') |
| self.assertTrue(encodings.aliases.__file__.startswith(imps[1][1][1])) |
| |
| # Close all files, avoid warning by unittest |
| for i in imps: |
| if i[1][0] is not None: |
| i[1][0].close() |
| |
| |
| def test_guess_encoding(self): |
| fp = BytesIO(b"# coding: utf-8") |
| self.assertEqual(util.guess_encoding(fp), "utf-8") |
| |
| fp = BytesIO(b"\n# coding: utf-8") |
| self.assertEqual(util.guess_encoding(fp), "utf-8") |
| |
| fp = BytesIO(b"# coding: latin-1") |
| self.assertEqual(util.guess_encoding(fp), "latin-1") |
| |
| fp = BytesIO(b"\n# coding: latin-1") |
| self.assertEqual(util.guess_encoding(fp), "latin-1") |
| |
| fp = BytesIO(b"#!/usr/bin/env/python\n# vim: set fileencoding=latin-1 :") |
| self.assertEqual(util.guess_encoding(fp), "latin-1") |
| |
| fp = BytesIO(b"\n\n\n# coding: latin-1") |
| if sys.version_info[0] == 2: |
| self.assertEqual(util.guess_encoding(fp), "ascii") |
| else: |
| self.assertEqual(util.guess_encoding(fp), "utf-8") |
| |
| del fp |
| |
| |
| if __name__ == "__main__": |
| unittest.main() |
