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Issue #21750: mock_open.read_data can now be read from each instance, as it

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could in Python 3.3.
This commit is contained in:
Robert Collins 2015-07-17 20:08:45 +12:00
parent 579db160b3
commit 5329aaa74b
4 changed files with 57 additions and 31 deletions
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18
Lib/unittest/test/testmock/testwith.py
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@ -141,7 +141,6 @@ class TestMockOpen(unittest.TestCase):
def test_mock_open_context_manager(self):
mock = mock_open()
handle = mock.return_value
with patch('%s.open' % __name__, mock, create=True):
with open('foo') as f:
f.read()
@ -149,8 +148,23 @@ class TestMockOpen(unittest.TestCase):
expected_calls = [call('foo'), call().__enter__(), call().read(),
call().__exit__(None, None, None)]
self.assertEqual(mock.mock_calls, expected_calls)
self.assertIs(f, handle)
# mock_open.return_value is no longer static, because
# readline support requires that it mutate state
def test_mock_open_context_manager_multiple_times(self):
mock = mock_open()
with patch('%s.open' % __name__, mock, create=True):
with open('foo') as f:
f.read()
with open('bar') as f:
f.read()
expected_calls = [
call('foo'), call().__enter__(), call().read(),
call().__exit__(None, None, None),
call('bar'), call().__enter__(), call().read(),
call().__exit__(None, None, None)]
self.assertEqual(mock.mock_calls, expected_calls)
def test_explicit_mock(self):
mock = MagicMock()