diff --git a/tests/test_sources.py b/tests/test_sources.py
index 1257ac55..837ee459 100644
--- a/tests/test_sources.py
+++ b/tests/test_sources.py
@@ -25,11 +25,9 @@ class TestDataFrameSource(TestCase):
 
         for expected_dt, expected_price in df.iterrows():
             sid0 = source.next()
-            sid1 = source.next()
 
-            assert expected_dt == sid0.dt == sid1.dt
+            assert expected_dt == sid0.dt
             assert expected_price[0] == sid0.price
-            assert expected_price[1] == sid1.price
 
     def test_sid_filtering(self):
         _, df = factory.create_test_df_source()