Add tests/CI, fix playable import error on py3

.travis.yml

@@ -0,0 +1,12 @@
+langauge: python
+
+python:
+  - '2.7'
+  - '3.2'
+  - '3.3'
+  - '3.4'
+  - '3.5'
+  - '3.6'
+  - 'nightly'
+
+script: 'python setup.py test'

disco/voice/playable.py

@@ -14,7 +14,7 @@ from disco.voice.opus import OpusEncoder
 try:
     from cStringIO import cStringIO as StringIO
 except:
-    from StringIO import StringIO
+    from six import StringIO
 
 
 OPUS_HEADER_SIZE = struct.calcsize('<h')

setup.py

@@ -2,6 +2,14 @@ from setuptools import setup, find_packages
 
 from disco import VERSION
 
+
+def run_tests():
+    import unittest
+    test_loader = unittest.TestLoader()
+    test_suite = test_loader.discover('tests', pattern='test_*.py')
+    return test_suite
+
+
 with open('requirements.txt') as f:
     requirements = f.readlines()
 
@@ -19,6 +27,7 @@ setup(
     long_description=readme,
     include_package_data=True,
     install_requires=requirements,
+    test_suite='setup.run_tests',
     classifiers=[
         'Development Status :: 4 - Beta',
         'License :: OSI Approved :: MIT License',

tests/test_imports.py

@@ -0,0 +1,42 @@
+"""
+This module tests that all of disco can be imported, mostly to help reduce issues
+with untested code that will not even parse/run on Py2/3
+"""
+from disco.api.client import *
+from disco.api.http import *
+from disco.api.ratelimit import *
+from disco.bot.bot import *
+from disco.bot.command import *
+from disco.bot.parser import *
+from disco.bot.plugin import *
+from disco.bot.storage import *
+from disco.gateway.client import *
+from disco.gateway.events import *
+from disco.gateway.ipc import *
+from disco.gateway.packets import *
+# Not imported, GIPC is required but not provided by default
+# from disco.gateway.sharder import *
+from disco.types.base import *
+from disco.types.channel import *
+from disco.types.guild import *
+from disco.types.invite import *
+from disco.types.message import *
+from disco.types.permissions import *
+from disco.types.user import *
+from disco.types.voice import *
+from disco.types.webhook import *
+from disco.util.backdoor import *
+from disco.util.config import *
+from disco.util.functional import *
+from disco.util.hashmap import *
+from disco.util.limiter import *
+from disco.util.logging import *
+from disco.util.serializer import *
+from disco.util.snowflake import *
+from disco.util.token import *
+from disco.util.websocket import *
+from disco.voice.client import *
+from disco.voice.opus import *
+from disco.voice.packets import *
+from disco.voice.playable import *
+from disco.voice.player import *