diff --git a/tests/exchange/test_bcolz.py b/tests/exchange/test_bcolz.py
index dcde6eab..5b2486f1 100644
--- a/tests/exchange/test_bcolz.py
+++ b/tests/exchange/test_bcolz.py
@@ -1,45 +1,49 @@
 import shutil
 import tempfile
 import pandas as pd
+
+from catalyst import get_calendar
 from catalyst.exchange.exchange_bcolz import BcolzExchangeBarWriter
 
+
 class TestBcolzWriter(object):
+    @classmethod
+    def setup_class(cls):
+        cls.columns = ['open', 'high', 'low', 'close', 'volume']
 
-	@classmethod
-	def setup_class(cls):
-		cls.columns = ['open', 'high', 'low', 'close', 'volume']
+    def setUp(self):
+        # Create a temporary directory
+        self.root_dir = tempfile.mkdtemp()
 
-	def setUp(self):
-		# Create a temporary directory
-		self.root_dir = tempfile.mkdtemp()
+    def tearDown(self):
+        # Remove the directory after the test
+        shutil.rmtree(self.root_dir)
 
-	def tearDown(self):
-		# Remove the directory after the test
-		shutil.rmtree(self.root_dir)
+    def test_bcolz_write_daily(self):
+        start = pd.to_datetime('2015-01-01')
+        end = pd.to_datetime('2015-12-31')
+        freq = 'daily'
 
-	def test_bcolz_write_daily(self):
+        calendar = get_calendar('OPEN')
+        # index = pd.date_range(start=start, end=end, freq='D', name='date')
+        index = calendar.sessions_in_range(start, end)
+        df = pd.DataFrame(index=index, columns=self.columns)
+        df.fillna(1, inplace=True)
 
-		start = pd.to_datetime('2015-01-01')
-		end   = pd.to_datetime('2015-12-31')
-		freq  = 'daily'
+        writer = BcolzExchangeBarWriter(
+            rootdir=self.root_dir,
+            start_session=start,
+            end_session=end,
+            data_frequency=freq,
+            write_metadata=True)
 
-		index = pd.date_range(start=start, end=end, freq='D', name='date')
-		df = pd.DataFrame(index=index, columns=self.columns)
-		df.fillna(1, inplace=True)
+        data = []
+        data.append((1, df))
 
-		writer = BcolzExchangeBarWriter(
-						rootdir  = self.root_dir,
-						start_session   = start,
-	                    end_session     = end,
-	                    data_frequency  = freq,
-	                    write_metadata  = True )
-
-		data = []
-		data.append((1,df))
-
-		writer.write(data)
-
-
-	def test_bcolz_write_minute(self):
-		index = pd.date_range(start=pd.to_datetime('2015-01-01'), end=pd.to_datetime('2015-01-31'), freq='T', name='date')
+        writer.write(data)
+        pass
 
+    def test_bcolz_write_minute(self):
+        index = pd.date_range(start=pd.to_datetime('2015-01-01'),
+                              end=pd.to_datetime('2015-01-31'), freq='T',
+                              name='date')