Updated line item tests with a proper class name.

Author: DynataRidley

tests/test_lineitems.py

@@ -15,7 +15,7 @@
 BASE_HOST = "http://test-url.example"
 
 
-class TestProjectEndpoints(unittest.TestCase):
+class TestLineItemEndpoints(unittest.TestCase):
     def setUp(self):
         self.api = DemandAPIClient(client_id='test', username='testuser', password='testpass', base_host=BASE_HOST)
         self.api._access_token = 'Bearer testtoken'