doc tweaks to effect.testing - mostly reorder things

Author: radix

effect/testing.py

@@ -1,9 +1,8 @@
 """
-Various functions for testing effects.
+Various functions and dispatchers for testing effects.
 
-The main goal of this code is to allow you to safely tests your effects
-in a way that makes it hard to *accidentally* perform real effects in your
-tests.
+Usually the best way to test effects is by using :func:`effect.sync_perform`
+with a :obj:`SequenceDispatcher`.
 """
 
 from __future__ import print_function
@@ -20,6 +19,18 @@
 
 import six
 
+__all__ = [
+    'SequenceDispatcher',
+    'EQDispatcher',
+    'EQFDispatcher',
+    'resolve_effect',
+    'fail_effect',
+    'Stub',
+    'ESConstant', 'ESError', 'ESFunc',
+    'resolve_stubs',
+    'resolve_stub',
+]
+
 
 @attr.s
 class Stub(object):