diff --git a/tests/algo/base.py b/tests/algo/base.py
index 94cf1a2..b49ad8f 100644
--- a/tests/algo/base.py
+++ b/tests/algo/base.py
@@ -65,16 +65,8 @@ def train(self):
 class TestBase(unittest.TestCase):
     @classmethod
     def setUpClass(cls):
-        if not os.path.isdir('ext/ml-100k/'):
-            raise RuntimeError('Cannot find the ./ext/ml-100k directory')
         cls.ml_100k = './ext/ml-100k/'
-
-        if not os.path.isdir('ext/ml-20m'):
-            raise RuntimeError('Cannot find the ./ext/ml-20m directory')
         cls.ml_20m = './ext/ml-20m/'
-
-        if not os.path.isdir('ext/text8'):
-            raise RuntimeError('Cannot find the ./ext/text8 directory')
         cls.text8 = './ext/text8/'
         cls.temp_files = []