Add files from the old svn, r101.

[matthijs/upstream/mobilegtd.git] / tests / specs / model / observable_spec.py

diff --git a/tests/specs/model/observable_spec.py b/tests/specs/model/observable_spec.py
new file mode 100644 (file)
index 0000000..924adb8
--- /dev/null
+++ b/tests/specs/model/observable_spec.py
@@ -0,0 +1,52 @@
+import unittest
+from mock import Mock
+from model.observable import ObservableList
+
+class ObservableListBehaviour(unittest.TestCase):
+    def setUp(self):
+        self.list = ObservableList()
+        self.observer = Mock()
+        self.list.observers.append(self.observer)
+        
+    def add_item(self):
+        p = Mock()
+        self.list.append(p)
+        return p
+
+    def assert_observed(self,name,new=None,old=None):
+        self.observer.notify.assert_called_with(self.list,name,new=new,old=old)
+
+    def test_should_be_iterable(self):
+        for item in self.list:
+            pass
+
+    def test_should_notify_observers_if_item_was_added(self):
+        p = self.add_item()
+        self.assert_observed('add_item',new=p,old=None)
+
+    def test_should_remember_added_items(self):
+        p = self.add_item()
+        self.assertTrue(p in self.list)
+        
+
+
+class EmptyObservableListBehaviour(ObservableListBehaviour):
+
+    def test_should_be_empty(self):
+        self.assertEqual(len(self.list),0)
+
+    def test_should_raise_exception_when_trying_to_remove_a_item(self):
+        self.assertRaises(ValueError,self.list.remove,Mock())
+
+    
+
+class NotEmptyObservableListBehaviour(ObservableListBehaviour):
+
+    def setUp(self):
+        super(NotEmptyObservableListBehaviour,self).setUp()
+        self.add_item()
+    
+    def test_should_notify_observers_if_item_was_removed(self):
+        i = self.list[0]
+        self.list.remove(i)
+        self.assert_observed('remove_item', i, None)