Bring in the sample site and setup an integration test

MANIFEST.in

@@ -21,3 +21,15 @@ recursive-include docs Makefile
 
 recursive-include src *.zcml
 recursive-include src *.plugin
+
+# added by check_manifest.py
+recursive-include src *.ico
+recursive-include src *.jpg
+recursive-include src *.meta
+recursive-include src *.png
+recursive-include src *.pt
+recursive-include src *.py
+recursive-include src *.rst
+recursive-include src *.theme
+recursive-include src *.tmpl
+recursive-include src *.txt

src/nti/nikola_chameleon/interfaces.py

@@ -191,7 +191,13 @@ class IPostPage(IPost, IPageKind):
 
 def _build(iface, result, tag='__pagekinds__', tx=lambda x: x):
     __traceback_info__ = iface, tag
+    if not getattr(iface, '__module__', None) == __name__:
+        # Provides() objects that exist from alsoProvides()
+        # being set. Probably will go away on a GC?
+        return
+
     kinds = iface.getTaggedValue(tag)
+
     kinds = tx(kinds)
     if kinds in result and kinds: # pragma: no cover
         if result[kinds] is iface:

src/nti/nikola_chameleon/tests/.gitignore

@@ -0,0 +1,5 @@
+testsite/cache/
+testsite/.doit.db.db
+testsite/.doit.db
+testsite/output
+testsite/plugins/__init__.py

src/nti/nikola_chameleon/tests/test_render.py

@@ -0,0 +1,37 @@
+# -*- coding: utf-8 -*-
+"""
+Testing the entire rendering process.
+
+"""
+from __future__ import absolute_import
+from __future__ import division
+from __future__ import print_function
+
+
+# disable: accessing protected members, too many methods
+# pylint: disable=W0212,R0904
+
+import unittest
+
+from zope.testing.cleanup import CleanUp
+
+class TestRender(CleanUp,unittest.TestCase):
+
+    def test_render(self):
+        from nikola.__main__ import main
+        import os
+        import shutil
+        cwd = os.getcwd()
+        testsite = os.path.join(os.path.dirname(__file__), 'testsite')
+        os.chdir(testsite)
+        self.addCleanup(os.chdir, cwd)
+
+        main(['build', '-q'])
+
+        shutil.rmtree('output')
+        # This gets different names under different versions
+        # of python, for some reason.
+        if os.path.exists('.doit.db.db'): # python 3
+            os.remove('.doit.db.db')
+        else:
+            os.remove(".doit.db")

src/nti/nikola_chameleon/tests/testsite/README.txt

@@ -0,0 +1,17 @@
+This folder contains the source used to generate a static site using Nikola.
+
+Installation and documentation at https://getnikola.com/
+
+Configuration file for the site is ``conf.py``.
+
+To build the site::
+
+    nikola build
+
+To see it::
+
+    nikola serve -b
+
+To check all available commands::
+
+    nikola help