Stab at implementing resetall(). See #23

pytest_mock.py

@@ -24,6 +24,13 @@ def __init__(self):
         self._patches = []  # list of mock._patch objects
         self.patch = self._Patcher(self._patches)
 
+    def resetall(self):
+        """
+        Call reset_mock() on all patchers started by this fixture.
+        """
+        for p in self._patches:
+            p.get_original()[0].reset_mock()
+
     def stopall(self):
         """
         Stop all patchers started by this fixture. Can be safely called multiple

test_pytest_mock.py

@@ -143,6 +143,21 @@ def test_mocker_has_mock_class_as_attribute_for_instantiation():
     assert isinstance(mocker.Mock(), mock_module.Mock)
 
 
+def test_mocker_resetall(mocker):
+    listdir = mocker.patch('os.listdir')
+    open = mocker.patch('os.open')
+
+    listdir("/tmp")
+    open("/tmp/foo.txt")
+    listdir.assert_called_once_with("/tmp")
+    open.assert_called_once_with("/tmp/foo.txt")
+
+    mocker.resetall()
+
+    assert not listdir.called
+    assert not open.called
+
+
 def test_mocker_stub(mocker):
     def foo(on_something):
         on_something('foo', 'bar')