diff --git a/testing_support/super_mox.py b/testing_support/super_mox.py
index 433c675bf2..18d8219c11 100644
--- a/testing_support/super_mox.py
+++ b/testing_support/super_mox.py
@@ -98,7 +98,8 @@ class StdoutCheck(object):
     try:
       # If sys.stdout was used, self.checkstdout() must be called.
       # pylint: disable=E1101
-      self.assertEquals('', sys.stdout.getvalue())
+      if not sys.stdout.closed:
+        self.assertEquals('', sys.stdout.getvalue())
     except AttributeError:
       pass
     sys.stdout = self._old_stdout
diff --git a/tests/presubmit_unittest.py b/tests/presubmit_unittest.py
index 355cea917c..3b814f0e97 100755
--- a/tests/presubmit_unittest.py
+++ b/tests/presubmit_unittest.py
@@ -1592,7 +1592,6 @@ class CannedChecksUnittest(PresubmitTestsBase):
     self.assertEquals(results2[0].__class__, error_type)
 
   def ReadFileTest(self, check, content1, content2, error_type):
-    self.mox.StubOutWithMock(presubmit.InputApi, 'ReadFile')
     change1 = presubmit.Change(
         'foo1', 'foo1\n', self.fake_root_dir, None, 0, 0, None)
     input_api1 = self.MockInputApi(change1, False)