def test_find_without_criteria_returns_all(self):
mockopen = MagicMock()
fake_proc_mounts = StringIO(REFERENCE)
with patch.object(builtins, 'open', mockopen):
manager = mockopen.return_value.__enter__.return_value
manager.read.return_value = REFERENCE
manager.__iter__.return_value = fake_proc_mounts.__iter__()
cursor = ProcMounts.find()
items = list(cursor)
self.assertEquals(len(items), 16)
def test_find_by_path_without_match(self):
mockopen = MagicMock()
fake_proc_mounts = StringIO(REFERENCE)
with patch.object(builtins, 'open', mockopen):
manager = mockopen.return_value.__enter__.return_value
manager.read.return_value = REFERENCE
manager.__iter__.return_value = fake_proc_mounts.__iter__()
cursor = ProcMounts.find(path='/var/blah/blah')
with self.assertRaises(StopIteration):
item = next(cursor)
def test_find_by_device_with_match(self):
mockopen = MagicMock()
fake_proc_mounts = StringIO(REFERENCE)
with patch.object(builtins, 'open', mockopen):
manager = mockopen.return_value.__enter__.return_value
manager.read.return_value = REFERENCE
manager.__iter__.return_value = fake_proc_mounts.__iter__()
cursor = ProcMounts.find(device='/dev/sdf')
item = next(cursor)
self.assertEquals(item.path, '/var')
with self.assertRaises(StopIteration):
item = next(cursor)
