tests: moved out of wa package

Tests now reside in the root of the repo, rather than in wa package.
This means they will no longer packaged and installed in user
deployments (they're only useful for developers).

tests/test_signal.py

@@ -0,0 +1,63 @@
+import unittest
+
+from nose.tools import assert_equal, assert_true, assert_false
+
+import wa.framework.signal as signal
+
+
+class Callable(object):
+
+    def __init__(self, val):
+        self.val = val
+
+    def __call__(self):
+        return self.val
+
+
+class TestPriorityDispatcher(unittest.TestCase):
+
+    def test_ConnectNotify(self):
+        one = Callable(1)
+        two = Callable(2)
+        three = Callable(3)
+        signal.connect(
+            two,
+            'test',
+            priority=200
+        )
+        signal.connect(
+            one,
+            'test',
+            priority=100
+        )
+        signal.connect(
+            three,
+            'test',
+            priority=300
+        )
+        result = [i[1] for i in signal.send('test')]
+        assert_equal(result, [3, 2, 1])
+
+    def test_wrap_propagate(self):
+        d = {'before': False, 'after': False, 'success': False}
+        def before():
+            d['before'] = True
+        def after():
+            d['after'] = True
+        def success():
+            d['success'] = True
+        signal.connect(before, signal.BEFORE_WORKLOAD_SETUP)
+        signal.connect(after, signal.AFTER_WORKLOAD_SETUP)
+        signal.connect(success, signal.SUCCESSFUL_WORKLOAD_SETUP)
+
+        caught = False
+        try:
+            with signal.wrap('WORKLOAD_SETUP'):
+                raise RuntimeError()
+        except RuntimeError:
+            caught=True
+
+        assert_true(d['before'])
+        assert_true(d['after'])
+        assert_true(caught)
+        assert_false(d['success'])