diff --git a/boxsdk/object/file.py b/boxsdk/object/file.py
index 341f30f89..cf1942c14 100644
--- a/boxsdk/object/file.py
+++ b/boxsdk/object/file.py
@@ -785,7 +785,7 @@ def get_thumbnail_representation(self, dimensions, extension='png'):
         """
         rep_hints = '[{0}?dimensions={1}]'.format(extension, dimensions)
         representation = self.get_representation_info(rep_hints)
-        if len(representation):
+        if representation:
             url = representation[0]['content']['url_template']
             url = url.replace('{+asset_path}', '')
             response = self._session.get(url, expect_json_response=False)
diff --git a/test/unit/object/test_file.py b/test/unit/object/test_file.py
index 03a4d65ce..fee7147e4 100644
--- a/test/unit/object/test_file.py
+++ b/test/unit/object/test_file.py
@@ -901,4 +901,4 @@ def test_get_thumbnail_representation_not_found(
         headers={'X-Rep-Hints': '[{}?dimensions={}]'.format(extension, dimensions)},
         params={'fields': 'representations'},
     )
-    assert b'' == thumb
+    assert thumb == b''
diff --git a/test/unit/object/test_search.py b/test/unit/object/test_search.py
index 2457af922..4602570ed 100644
--- a/test/unit/object/test_search.py
+++ b/test/unit/object/test_search.py
@@ -4,6 +4,8 @@
 
 import json
 
+from mock import ANY
+
 import pytest
 
 from boxsdk.config import API
@@ -375,7 +377,9 @@ def test_metadata_query(
     )
     item1 = items.next()
     item2 = items.next()
-    mock_box_session.post.assert_called_once_with(expected_url, data=json.dumps(expected_data), headers=expected_headers)
+    mock_box_session.post.assert_called_once_with(expected_url, data=ANY, headers=expected_headers)
+    assert dict(json.loads(mock_box_session.post.call_args[1]['data'])) == expected_data
+    assert mock_box_session.post.call_args[1]['headers'] == expected_headers
     assert item1['type'] == 'file'
     assert item1['metadata']['enterprise_67890']['catalogImages']['$parent'] == 'file_50347290'
     assert item2['type'] == 'folder'