cope with no return value

Author: sjanssen2

qiita_client/tests/test_plugin.py

@@ -75,20 +75,20 @@ def func(a, b, c, d):
 
     def test__push_artifacts_files_to_central(self):
         class fakeClient():
-            def push_file_to_central(self, fp):
-                return 'pushed:%s' % fp
-
-        obs = QiitaCommand._push_artifacts_files_to_central(
-            fakeClient(), [
-                ArtifactInfo("stefArtiName", "Atype", [
-                    ("fp1", "preprocessed_fasta"),
-                    ("fp2", "preprocessed_fastq")]),
-                None,
-                ArtifactInfo("artiName", "artiType", [])])
-
-        self.assertIn('pushed:', obs[0].files[0][0])
-        self.assertIn('pushed:', obs[0].files[1][0])
-        self.assertEqual([], obs[2].files)
+            def push_file_to_central(self, filepath):
+                return 'pushed:%s' % filepath
+
+        artifacts = [
+            ArtifactInfo("stefArtiName", "Atype", [
+                ("fp1", "preprocessed_fasta"),
+                ("fp2", "preprocessed_fastq")]),
+            None,
+            ArtifactInfo("artiName", "artiType", [])]
+        QiitaCommand._push_artifacts_files_to_central(fakeClient(), artifacts)
+
+        self.assertIn('pushed:', artifacts[0].files[0][0])
+        self.assertIn('pushed:', artifacts[0].files[1][0])
+        self.assertEqual([], artifacts[2].files)
 
 
 class QiitaArtifactTypeTest(TestCase):