diff --git a/pyicloud/cmdline.py b/pyicloud/cmdline.py
index 8104fc7..dc9fa42 100755
--- a/pyicloud/cmdline.py
+++ b/pyicloud/cmdline.py
@@ -6,6 +6,7 @@ command line scripts, and related.
 """
 import argparse
 import pickle
+import sys
 
 import pyicloud
 
@@ -30,7 +31,10 @@ def create_pickled_data(idevice, filename):
     pickle_file.close()
 
 
-def main():
+def main(args=None):
+    if args is None:
+        args = sys.argv
+
     """		Main Function 	"""
     parser = argparse.ArgumentParser(
         description="Find My iPhone CommandLine Tool")
@@ -146,7 +150,7 @@ def main():
         help="Save device data to a file in the current directory.",
     )
 
-    command_line = parser.parse_args()
+    command_line = parser.parse_args(args)
     if not command_line.username or not command_line.password:
         parser.error('No username or password supplied')
 
diff --git a/tests/__init__.py b/tests/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/tests/test_sanity.py b/tests/test_sanity.py
new file mode 100644
index 0000000..d595262
--- /dev/null
+++ b/tests/test_sanity.py
@@ -0,0 +1,10 @@
+from unittest import TestCase
+
+
+from pyicloud.cmdline import main
+
+
+class SanityTestCase(TestCase):
+    def test_basic_sanity(self):
+        with self.assertRaises(SystemExit):
+            main(['--help'])