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-rw-r--r--Lib/test/test_unittest/testmock/testwith.py6
-rw-r--r--Lib/unittest/mock.py4
-rw-r--r--Misc/NEWS.d/next/Library/2021-06-24-20-45-03.bpo-44185.ZHb8yJ.rst3
3 files changed, 10 insertions, 3 deletions
diff --git a/Lib/test/test_unittest/testmock/testwith.py b/Lib/test/test_unittest/testmock/testwith.py
index 8dc8eb1..56cb163 100644
--- a/Lib/test/test_unittest/testmock/testwith.py
+++ b/Lib/test/test_unittest/testmock/testwith.py
@@ -158,7 +158,7 @@ class TestMockOpen(unittest.TestCase):
f.read()
expected_calls = [call('foo'), call().__enter__(), call().read(),
- call().__exit__(None, None, None)]
+ call().__exit__(None, None, None), call().close()]
self.assertEqual(mock.mock_calls, expected_calls)
self.assertIs(f, handle)
@@ -172,9 +172,9 @@ class TestMockOpen(unittest.TestCase):
expected_calls = [
call('foo'), call().__enter__(), call().read(),
- call().__exit__(None, None, None),
+ call().__exit__(None, None, None), call().close(),
call('bar'), call().__enter__(), call().read(),
- call().__exit__(None, None, None)]
+ call().__exit__(None, None, None), call().close()]
self.assertEqual(mock.mock_calls, expected_calls)
def test_explicit_mock(self):
diff --git a/Lib/unittest/mock.py b/Lib/unittest/mock.py
index 4ca7062..f10f9b0 100644
--- a/Lib/unittest/mock.py
+++ b/Lib/unittest/mock.py
@@ -2941,6 +2941,9 @@ def mock_open(mock=None, read_data=''):
return handle.readline.return_value
return next(_state[0])
+ def _exit_side_effect(exctype, excinst, exctb):
+ handle.close()
+
global file_spec
if file_spec is None:
import _io
@@ -2967,6 +2970,7 @@ def mock_open(mock=None, read_data=''):
handle.readlines.side_effect = _readlines_side_effect
handle.__iter__.side_effect = _iter_side_effect
handle.__next__.side_effect = _next_side_effect
+ handle.__exit__.side_effect = _exit_side_effect
def reset_data(*args, **kwargs):
_state[0] = _to_stream(read_data)
diff --git a/Misc/NEWS.d/next/Library/2021-06-24-20-45-03.bpo-44185.ZHb8yJ.rst b/Misc/NEWS.d/next/Library/2021-06-24-20-45-03.bpo-44185.ZHb8yJ.rst
new file mode 100644
index 0000000..056ab8d
--- /dev/null
+++ b/Misc/NEWS.d/next/Library/2021-06-24-20-45-03.bpo-44185.ZHb8yJ.rst
@@ -0,0 +1,3 @@
+:func:`unittest.mock.mock_open` will call the :func:`close` method of the file
+handle mock when it is exiting from the context manager.
+Patch by Samet Yaslan.