diff --git a/.coveragerc b/.coveragerc
new file mode 100644
index 0000000..ac62a0f
--- /dev/null
+++ b/.coveragerc
@@ -0,0 +1,12 @@
+[run]
+source = multiselectfield
+omit =
+    example/*
+
+[report]
+exclude_lines =
+    pragma: no cover
+    def __repr__
+    raise NotImplementedError
+    if __name__ == .__main__.:
+    def parse_args
\ No newline at end of file
diff --git a/.travis.yml b/.travis.yml
new file mode 100644
index 0000000..6cca6a2
--- /dev/null
+++ b/.travis.yml
@@ -0,0 +1,15 @@
+language: python
+
+install:
+  - pip install -q --use-mirrors tox==1.6.1 coveralls==0.3
+
+script:
+  - coverage erase
+  - tox
+after_success:
+  - coverage combine
+  - coveralls
+
+notifications:
+  email:
+    - goinnn@gmail.com
diff --git a/example/example/app/tests.py b/example/example/app/tests.py
new file mode 100644
index 0000000..8fd7d0e
--- /dev/null
+++ b/example/example/app/tests.py
@@ -0,0 +1,26 @@
+# -*- coding: utf-8 -*-
+# Copyright (c) 2013 by Pablo Martín <goinnn@gmail.com>
+#
+# This software is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Lesser General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This software 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 Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public License
+# along with this software.  If not, see <http://www.gnu.org/licenses/>.
+
+from django.test import TestCase
+
+from example.app.models import Book
+
+
+class MultiSelectTestCase(TestCase):
+
+    def test_filter(self):
+        self.assertEqual(Book.objects.filter(tags__contains='sex').count(), 1)
+        self.assertEqual(Book.objects.filter(tags__contains='boring').count(), 0)
diff --git a/example/run_tests.py b/example/run_tests.py
new file mode 100644
index 0000000..00c10f8
--- /dev/null
+++ b/example/run_tests.py
@@ -0,0 +1,36 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+
+# Copyright (c) 2013 by Pablo Martín <goinnn@gmail.com>
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Lesser 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 Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public License
+# along with this programe.  If not, see <http://www.gnu.org/licenses/>.
+
+import os
+import sys
+
+import django
+
+from django.conf import ENVIRONMENT_VARIABLE
+from django.core import management
+
+
+if len(sys.argv) == 1:
+    os.environ[ENVIRONMENT_VARIABLE] = 'example.settings'
+else:
+    os.environ[ENVIRONMENT_VARIABLE] = sys.argv[1]
+
+if django.VERSION[0] == 1 and django.VERSION[1] <= 5:
+    management.call_command('test', 'app')
+else:
+    management.call_command('test', 'example.app')
diff --git a/example/settings_no_debug.py b/example/settings_no_debug.py
new file mode 100644
index 0000000..b55fd38
--- /dev/null
+++ b/example/settings_no_debug.py
@@ -0,0 +1,4 @@
+from test_project.settings import *
+
+DEBUG = False
+TEMPLATE_DEBUG = DEBUG
diff --git a/tox.ini b/tox.ini
new file mode 100644
index 0000000..f275791
--- /dev/null
+++ b/tox.ini
@@ -0,0 +1,76 @@
+[tox]
+envlist = py27-dj16,py27-dj15,py27-dj14,py33-dj16,py33-dj15,py26-dj16,py26-dj15,py26-dj14
+
+[testenv]
+usedevelop = True
+commands =
+    python {envbindir}/coverage run -p example/run_tests.py
+    python {envbindir}/coverage run -p example/run_tests.py example.settings_no_debug
+install_command =
+    pip install {opts} {packages}
+
+[testenv:py26-dj16]
+basepython = python2.6
+deps =
+    django==1.6
+    pillow==1.7.8
+    PyYAML==3.10
+    coveralls==0.3
+
+[testenv:py26-dj15]
+basepython = python2.6
+deps =
+    django==1.5.5
+    pillow==1.7.8
+    PyYAML==3.10
+    coveralls==0.3
+
+[testenv:py26-dj14]
+basepython = python2.6
+deps =
+    django==1.4.10
+    pillow==1.7.8
+    PyYAML==3.10
+    coveralls==0.3
+
+[testenv:py27-dj16]
+basepython = python2.7
+deps =
+    django==1.6
+    pillow==1.7.8
+    PyYAML==3.10
+    coveralls==0.3
+
+
+[testenv:py27-dj15]
+basepython = python2.7
+deps =
+    django==1.5.5
+    pillow==1.7.8
+    PyYAML==3.10
+    coveralls==0.3
+
+[testenv:py27-dj14]
+basepython = python2.7
+deps =
+    django==1.4.10
+    pillow==1.7.8
+    PyYAML==3.10
+    coveralls==0.3
+
+[testenv:py33-dj16]
+basepython = python3.3
+deps =
+    django==1.6
+    pillow==2.1.0
+    PyYAML==3.10
+    coveralls==0.3
+
+
+[testenv:py33-dj15]
+basepython = python3.3
+deps =
+    django==1.5.5
+    pillow==2.1.0
+    PyYAML==3.10
+    coveralls==0.3