michael@0: #!/usr/bin/env python
michael@0: #
michael@0: # This Source Code Form is subject to the terms of the Mozilla Public
michael@0: # License, v. 2.0. If a copy of the MPL was not distributed with this file,
michael@0: # You can obtain one at http://mozilla.org/MPL/2.0/.
michael@0: 
michael@0: import json
michael@0: import mock
michael@0: import os
michael@0: import shutil
michael@0: import sys
michael@0: import tempfile
michael@0: import unittest
michael@0: import mozinfo
michael@0: 
michael@0: class TestMozinfo(unittest.TestCase):
michael@0:     def setUp(self):
michael@0:         reload(mozinfo)
michael@0:         self.tempdir = os.path.abspath(tempfile.mkdtemp())
michael@0: 
michael@0:         # When running from an objdir mozinfo will use a build generated json file
michael@0:         # instead of the ones created for testing. Prevent that from happening.
michael@0:         # See bug 896038 for details.
michael@0:         sys.modules['mozbuild'] = None
michael@0: 
michael@0:     def tearDown(self):
michael@0:         shutil.rmtree(self.tempdir)
michael@0:         del sys.modules['mozbuild']
michael@0: 
michael@0:     def test_basic(self):
michael@0:         """Test that mozinfo has a few attributes."""
michael@0:         self.assertNotEqual(mozinfo.os, None)
michael@0:         # should have isFoo == True where os == "foo"
michael@0:         self.assertTrue(getattr(mozinfo, "is" + mozinfo.os[0].upper() + mozinfo.os[1:]))
michael@0: 
michael@0:     def test_update(self):
michael@0:         """Test that mozinfo.update works."""
michael@0:         mozinfo.update({"foo": 123})
michael@0:         self.assertEqual(mozinfo.info["foo"], 123)
michael@0: 
michael@0:     def test_update_file(self):
michael@0:         """Test that mozinfo.update can load a JSON file."""
michael@0:         j = os.path.join(self.tempdir, "mozinfo.json")
michael@0:         with open(j, "w") as f:
michael@0:             f.write(json.dumps({"foo": "xyz"}))
michael@0:         mozinfo.update(j)
michael@0:         self.assertEqual(mozinfo.info["foo"], "xyz")
michael@0: 
michael@0:     def test_update_file_invalid_json(self):
michael@0:         """Test that mozinfo.update handles invalid JSON correctly"""
michael@0:         j = os.path.join(self.tempdir,'test.json')
michael@0:         with open(j, 'w') as f:
michael@0:             f.write('invalid{"json":')
michael@0:         self.assertRaises(ValueError,mozinfo.update,[j])
michael@0: 
michael@0:     def test_find_and_update_file(self):
michael@0:         """Test that mozinfo.find_and_update_from_json can
michael@0:         find mozinfo.json in a directory passed to it."""
michael@0:         j = os.path.join(self.tempdir, "mozinfo.json")
michael@0:         with open(j, "w") as f:
michael@0:             f.write(json.dumps({"foo": "abcdefg"}))
michael@0:         self.assertEqual(mozinfo.find_and_update_from_json(self.tempdir), j)
michael@0:         self.assertEqual(mozinfo.info["foo"], "abcdefg")
michael@0: 
michael@0:     def test_find_and_update_file_invalid_json(self):
michael@0:         """Test that mozinfo.find_and_update_from_json can
michael@0:         handle invalid JSON"""
michael@0:         j = os.path.join(self.tempdir, "mozinfo.json")
michael@0:         with open(j, 'w') as f:
michael@0:             f.write('invalid{"json":')
michael@0:         self.assertRaises(ValueError, mozinfo.find_and_update_from_json, self.tempdir)
michael@0: 
michael@0: 
michael@0:     def test_find_and_update_file_mozbuild(self):
michael@0:         """Test that mozinfo.find_and_update_from_json can
michael@0:         find mozinfo.json using the mozbuild module."""
michael@0:         j = os.path.join(self.tempdir, "mozinfo.json")
michael@0:         with open(j, "w") as f:
michael@0:             f.write(json.dumps({"foo": "123456"}))
michael@0:         m = mock.MagicMock()
michael@0:         # Mock the value of MozbuildObject.from_environment().topobjdir.
michael@0:         m.MozbuildObject.from_environment.return_value.topobjdir = self.tempdir
michael@0:         with mock.patch.dict(sys.modules, {"mozbuild": m, "mozbuild.base": m}):
michael@0:             self.assertEqual(mozinfo.find_and_update_from_json(), j)
michael@0:         self.assertEqual(mozinfo.info["foo"], "123456")
michael@0: 
michael@0: if __name__ == '__main__':
michael@0:     unittest.main()