Fix deprecated ``assertEquals()``

See https://docs.python.org/2/library/unittest.html#deprecated-aliases

test/client_staging_test.py

@@ -61,7 +61,7 @@ class TestStager(TempDirectoryTestCase):
         self._submit()
         uploaded_file1 = self.client.put_files[0]
         assert uploaded_file1[1] == "tool"
-        self.assertEquals(uploaded_file1[0], "%s/tool1_wrapper.py" % tool_dir)
+        self.assertEqual(uploaded_file1[0], "%s/tool1_wrapper.py" % tool_dir)
 
     def test_input_extra_rewrite(self):
         self.client_job_description.rewrite_paths = True
@@ -91,7 +91,7 @@ class TestStager(TempDirectoryTestCase):
         self._submit()
         uploaded_file1 = self.client.put_files[0]
         assert uploaded_file1[1] == "unstructured"
-        self.assertEquals(uploaded_file1[0], local_unstructured_file)
+        self.assertEqual(uploaded_file1[0], local_unstructured_file)
 
     def test_submit_no_rewrite(self):
         # Expect no rewrite of paths

test/test_utils.py

@@ -171,11 +171,11 @@ class BaseManagerTestCase(TestCase):
         manager.launch(job_id, command)
         while manager.get_status(job_id) not in ['complete', 'cancelled']:
             pass
-        self.assertEquals(manager.stderr_contents(job_id), b'moo')
-        self.assertEquals(manager.stdout_contents(job_id), b'Hello World!')
-        self.assertEquals(manager.return_code(job_id), 0)
+        self.assertEqual(manager.stderr_contents(job_id), b'moo')
+        self.assertEqual(manager.stdout_contents(job_id), b'Hello World!')
+        self.assertEqual(manager.return_code(job_id), 0)
         manager.clean(job_id)
-        self.assertEquals(len(listdir(self.staging_directory)), 0)
+        self.assertEqual(len(listdir(self.staging_directory)), 0)
 
     def _test_cancelling(self, manager):
         job_id = manager.setup_job("124", "tool1", "1.0.0")