From 53af01c95abe622c0490b43c12439a04aa449509 Mon Sep 17 00:00:00 2001
From: Simon Poirier <simpoir@gmail.com>
Date: Wed, 28 Oct 2009 06:15:15 +0000
Subject: addon test extension to check interface contraints

---
(limited to 'tests')

diff --git a/tests/addontests.py b/tests/addontests.py
index 5fb4f61..24fc803 100644
--- a/tests/addontests.py
+++ b/tests/addontests.py
@@ -18,7 +18,7 @@
 
 import unittest
 
-from sugar.tutorius import addon
+from sugar.tutorius import addon, properties
 
 class AddonTest(unittest.TestCase):
     def test_create_constructor_fail(self):
@@ -47,4 +47,27 @@ class AddonTest(unittest.TestCase):
     def test_get_addon_meta(self):
         addon._cache = None
         meta = addon.get_addon_meta("BubbleMessage")
-        assert meta.keys() == ['mandatory_props', 'class', 'display_name', 'name', 'icon',]
+        expected = set(['mandatory_props', 'class', 'display_name', 'name', 'type', 'icon'])
+        assert not set(meta.keys()).difference(expected), "%s == %s"%(meta.keys(), expected)
+
+    def test_reverse_lookup(self):
+        obj = addon.create("BubbleMessage", message="Hi!", position=[12,31])
+        assert "BubbleMessage" == addon.get_name_from_type(type(obj))
+
+        for name in addon.list_addons():
+            klass = addon.get_addon_meta(name)['class']
+            assert name == addon.get_name_from_type(klass),\
+                "could not reverse lookup from type '%s'"%klass.__name__
+
+    def test_addon_constructor(self):
+        for name in addon.list_addons():
+            obj = addon.create(name)
+            # __init__ can have locals, but should not initialize attributes on
+            # self as non-properties attributes won't survive serialization
+            # through DBUS. Assignation in do() for actions or install_handlers
+            # for event filters is the correct way.
+            attribs = set(obj.__dict__.keys()).difference(obj._props.keys()+['_props', '_callback'])
+            assert not attribs,\
+                "assignation of attribute(s) %s detected in '%s.__init__'"%(attribs, type(obj).__name__)
+
+
--
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