fix tests

Change-Id: I39f61012f850a82e09a7afb80b527a0f99ad0ec7

Author: mayureshagashe2105

tests/test_caching.py

@@ -204,7 +204,8 @@ def test_delete_cached_content(self):
         cc.delete()
         self.assertIsInstance(self.observed_requests[-1], glm.DeleteCachedContentRequest)
 
-        cc = caching.delete_cached_content(name="cachedContent/test-cached-content")
+        cc = caching.CachedContent.get(name="cachedContent/test-cached-content")
+        cc.delete()
         self.assertIsInstance(self.observed_requests[-1], glm.DeleteCachedContentRequest)
 
     def test_auto_delete_cached_content_with_context_manager(self):