diff --git a/tests/test_transforms.py b/tests/test_transforms.py
index 26b01b27..233331c6 100644
--- a/tests/test_transforms.py
+++ b/tests/test_transforms.py
@@ -389,5 +389,13 @@ class TestBatchTransform(TestCase):
         expected_item = ((1, ), {'kwarg': 'str'})
         self.assertEqual(
             algo.history_return_args,
-            [None, None, None, expected_item, expected_item,
-             expected_item])
+            [
+                # 1990-01-03 - window not full
+                None,
+                # 1990-01-04 - window not full
+                None,
+                # 1990-01-05 - window not full, 3rd event
+                None,
+                # 1990-01-08 - window now full
+                expected_item
+            ])
diff --git a/zipline/utils/factory.py b/zipline/utils/factory.py
index 9ed25835..fa5822de 100644
--- a/zipline/utils/factory.py
+++ b/zipline/utils/factory.py
@@ -282,7 +282,7 @@ def create_test_df_source(trading_calendar=None):
     end = trading_calendar.last_close \
         if trading_calendar else pd.datetime(1990, 1, 8, 0, 0, 0, 0, pytz.utc)
 
-    index = pd.DatetimeIndex(start=start, end=end, freq=pd.datetools.day)
+    index = pd.DatetimeIndex(start=start, end=end, freq=pd.datetools.BDay())
     x = np.arange(0, len(index))
 
     df = pd.DataFrame(x, index=index, columns=[0])
diff --git a/zipline/utils/tradingcalendar.py b/zipline/utils/tradingcalendar.py
index 43a5e216..14b5a6a1 100644
--- a/zipline/utils/tradingcalendar.py
+++ b/zipline/utils/tradingcalendar.py
@@ -20,7 +20,7 @@ from datetime import datetime
 from dateutil import rrule
 from zipline.utils.date_utils import utcnow
 
-start = datetime(2002, 1, 1, tzinfo=pytz.utc)
+start = datetime(1990, 1, 1, tzinfo=pytz.utc)
 end = utcnow()
 
 non_trading_rules = []