diff --git a/tests/test_module.py b/tests/test_module.py
new file mode 100644
index 0000000..70cc42e
--- /dev/null
+++ b/tests/test_module.py
@@ -0,0 +1,82 @@
+# -*- coding: utf-8 -*-
+# Copyright (C) 2017 Adrien Vergé
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+import os
+import shutil
+import subprocess
+import tempfile
+import unittest
+
+
+class ModuleTestCase(unittest.TestCase):
+    def setUp(self):
+        self.wd = tempfile.mkdtemp(prefix='yamllint-tests-')
+
+        # file with only one warning
+        with open(os.path.join(self.wd, 'warn.yaml'), 'w') as f:
+            f.write('key: value\n')
+
+        # file in dir
+        os.mkdir(os.path.join(self.wd, 'sub'))
+        with open(os.path.join(self.wd, 'sub', 'nok.yaml'), 'w') as f:
+            f.write('---\n'
+                    'list: [  1, 1, 2, 3, 5, 8]  \n')
+
+    def tearDown(self):
+        shutil.rmtree(self.wd)
+
+    def test_run_module_no_args(self):
+        with self.assertRaises(subprocess.CalledProcessError) as ctx:
+            subprocess.check_output(['python', '-m', 'yamllint'],
+                                    stderr=subprocess.STDOUT)
+        self.assertEqual(ctx.exception.returncode, 2)
+        self.assertRegexpMatches(ctx.exception.output.decode(),
+                                 r'^usage: yamllint')
+
+    def test_run_module_on_bad_dir(self):
+        with self.assertRaises(subprocess.CalledProcessError) as ctx:
+            subprocess.check_output(['python', '-m', 'yamllint',
+                                     '/does/not/exist'],
+                                    stderr=subprocess.STDOUT)
+        self.assertRegexpMatches(ctx.exception.output.decode(),
+                                 r'No such file or directory')
+
+    def test_run_module_on_file(self):
+        out = subprocess.check_output(
+            ['python', '-m', 'yamllint', os.path.join(self.wd, 'warn.yaml')])
+        lines = out.decode().splitlines()
+        self.assertIn('/warn.yaml', lines[0])
+        self.assertEqual('\n'.join(lines[1:]),
+                         '  1:1       warning  missing document start "---"'
+                         '  (document-start)\n')
+
+    def test_run_module_on_dir(self):
+        with self.assertRaises(subprocess.CalledProcessError) as ctx:
+            subprocess.check_output(['python', '-m', 'yamllint', self.wd])
+        self.assertEqual(ctx.exception.returncode, 1)
+
+        files = ctx.exception.output.decode().split('\n\n')
+        self.assertIn(
+            '/warn.yaml\n'
+            '  1:1       warning  missing document start "---"'
+            '  (document-start)',
+            files[0])
+        self.assertIn(
+            '/sub/nok.yaml\n'
+            '  2:9       error    too many spaces inside brackets'
+            '  (brackets)\n'
+            '  2:27      error    trailing spaces  (trailing-spaces)',
+            files[1])
diff --git a/yamllint/__main__.py b/yamllint/__main__.py
new file mode 100644
index 0000000..bc16534
--- /dev/null
+++ b/yamllint/__main__.py
@@ -0,0 +1,4 @@
+from yamllint.cli import run
+
+if __name__ == '__main__':
+    run()