Prepare for tests.

This doesn't add any actual tests but it should pave the way for that.  Tests
may be run like so:

{{{
python setup.py nosetests --with-coverage
}}}

rattail/filemon/linux.py

@@ -28,11 +28,19 @@
 
 import sys
 import os.path
-import pyinotify
 import threading
 import Queue
 import logging
 
+try:
+    import pyinotify
+except ImportError:
+    # Mock out for testing on Windows.
+    class Dummy(object):
+        pass
+    pyinotify = Dummy()
+    pyinotify.ProcessEvent = Dummy
+
 import edbob
 from edbob.daemon import Daemon
 from edbob.errors import email_exception

rattail/tests/__init__.py

@@ -0,0 +1,19 @@
+
+import unittest
+
+from pyramid import testing
+
+
+class TestCase(unittest.TestCase):
+    """
+    Base class for all test suites.
+    """
+
+    def setUp(self):
+        self.config = testing.setUp()
+
+    def tearDown(self):
+        testing.tearDown()
+
+    def test_something(self):
+        self.assertTrue(1)

setup.cfg

@@ -0,0 +1,7 @@
+[nosetests]
+nocapture = 1
+cover-package = rattail
+cover-erase = 1
+cover-inclusive = 1
+cover-html = 1
+cover-html-dir = htmlcov

setup.py

@@ -94,6 +94,8 @@ setup(
         ],
 
     install_requires = requires,
+    tests_require = requires + ['nose', 'coverage'],
+    test_suite = 'nose.collector',
 
     namespace_packages = ['rattail'],
     packages = find_packages(),