--- Lib/distutils/tests/test_install_lib.py.orig	2018-04-29 22:47:33 UTC
+++ Lib/distutils/tests/test_install_lib.py
@@ -64,8 +64,12 @@ class InstallLibTestCase(support.Tempdir
         cmd.distribution.packages = [pkg_dir]
         cmd.distribution.script_name = 'setup.py'
 
-        # get_output should return 4 elements
-        self.assertGreaterEqual(len(cmd.get_outputs()), 2)
+        # Create rubbish, uncompilable file
+        f = os.path.join(pkg_dir, 'rubbish.py')
+        self.write_file(f, 'rubbish()')
+
+        # get_output should return 3 elements
+        self.assertEqual(len(cmd.get_outputs()), 3)
 
     def test_get_inputs(self):
         pkg_dir, dist = self.create_dist()