[soc2010/app-loading] update tests

git-svn-id: http://code.djangoproject.com/svn/django/branches/soc2010/app-loading@13810 bcc190cf-cafb-0310-a4f2-bffc1f526a37

django/core/apps.py

@@ -46,11 +46,6 @@ class AppCache(object):
         # List of App instances
         app_instances = [],
 
-        # Normalized list of INSTALLED_APPS
-        # This stores the module name of settings.INSTALLED_APPS
-        # e.g. 'django.contrib.auth' for 'django.contrib.auth.AuthApp'
-        installed_apps = [],
-
         # Mapping of app_labels to a dictionary of model names to model code.
         unbound_models = {},
 
@@ -142,14 +137,11 @@ class AppCache(object):
             app_instance.module = app_module
             app_instance.path = app_name
             self.app_instances.append(app_instance)
-            self.installed_apps.append(app_name)
 
-        # Check if the app instance specifies a path to models
+        # Check if the app instance specifies a path to a models module
         # if not, we use the models.py file from the package dir
-        try:
-            models_path = app_instance.models_path
-        except AttributeError:
-            models_path = '%s.models' % app_name
+        models_path = getattr(app_instance, 'models_path',
+                '%s.models' % app_name)
 
         try:
             models = import_module(models_path)
@@ -178,9 +170,11 @@ class AppCache(object):
         return models
     
     def find_app(self, name):
-        "Returns the App instance that matches name"
-        if '.' in name:
-            name = name.rsplit('.', 1)[1]
+        """
+        Returns the app instance that matches name
+        """
+        #if '.' in name:
+        #    name = name.rsplit('.', 1)[1]
         for app in self.app_instances:
             if app.name == name:
                 return app

tests/appcachetests/model_app/__init__.py

@@ -1,12 +0,0 @@
-from django.core.apps import App
-
-class MyApp(App):
-    models_path = 'model_app.othermodels'
-
-    def __repr__(self):
-        return '<MyApp: %s>' % self.name
-
-class MyOtherApp(MyApp):
-    def __init__(self, name):
-        super(MyOtherApp, self).__init__(name)
-        self.db_prefix = 'nomodel_app'

tests/appcachetests/model_app/apps.py

@@ -0,0 +1,9 @@
+from django.core.apps import App
+
+class MyApp(App):
+    models_path = 'model_app.othermodels'
+
+class MyOtherApp(MyApp):
+    def __init__(self, name):
+        super(MyOtherApp, self).__init__(name)
+        self.db_prefix = 'nomodel_app'

tests/appcachetests/nomodel_app/__init__.py

@@ -1,6 +0,0 @@
-from django.core.apps import App
-
-class MyApp(App):
-
-    def __repr__(self):
-        return '<MyApp: %s>' % self.name

tests/appcachetests/nomodel_app/apps.py

@@ -0,0 +1,4 @@
+from django.core.apps import App
+
+class MyApp(App):
+    pass

tests/appcachetests/runtests.py

@@ -67,11 +67,15 @@ class AppCacheReadyTests(AppCacheTestCase):
     """
 
     def test_not_initialized(self):
-        """Should return False if the AppCache hasn't been initialized"""
+        """
+        Should return False if the AppCache hasn't been initialized
+        """
         self.assertFalse(cache.app_cache_ready())
 
     def test_load_app(self):
-        """Should return False after executing the load_app function"""
+        """
+        Should return False after executing the load_app function
+        """
         cache.load_app('nomodel_app')
         self.assertFalse(cache.app_cache_ready())
         cache.load_app('nomodel_app', can_postpone=True)
@@ -105,7 +109,8 @@ class GetAppsTests(AppCacheTestCase):
         Test that an exception is raised if two app instances
         have the same db_prefix attribute
         """
-        settings.APP_CLASSES = ('nomodel_app.MyApp', 'model_app.MyOtherApp',)
+        settings.APP_CLASSES = ('nomodel_app.apps.MyApp',
+                                'model_app.apps.MyOtherApp',)
         self.assertRaises(ImproperlyConfigured, cache.get_apps)
 
 class GetAppTests(AppCacheTestCase):
@@ -254,9 +259,22 @@ class LoadAppTests(AppCacheTestCase):
         self.assertEqual(app.models_module.__name__, 'model_app.models')
         self.assertEqual(rv.__name__, 'model_app.models')
 
+    def test_with_custom_models(self):
+        """
+        Test that custom models are imported correctly, if the App specifies
+        an models_path attribute
+        """
+        from nomodel_app.apps import MyApp
+        rv = cache.load_app('model_app', can_postpone=False, app_class=MyApp)
+        app = cache.app_instances[0]
+        self.assertEqual(app.models_module.__name__, 'model_app.models')
+        self.assertTrue(isinstance(app, MyApp))
+        self.assertEqual(rv.__name__, 'model_app.models')
+
     def test_without_models(self):
         """
-        Test that an app instance is created when there are no models
+        Test that an app instance is created even when there are
+        no models provided
         """
         rv = cache.load_app('nomodel_app')
         app = cache.app_instances[0]
@@ -264,32 +282,10 @@ class LoadAppTests(AppCacheTestCase):
         self.assertEqual(app.name, 'nomodel_app')
         self.assertEqual(rv, None)
 
-    def test_custom_app(self):
+    def test_loading_the_same_app_twice(self):
         """
-        Test that a custom app instance is created if the function
-        gets passed a custom app class
-        """
-        from nomodel_app import MyApp
-        rv = cache.load_app('nomodel_app', False, MyApp)
-        app = cache.app_instances[0]
-        self.assertEqual(len(cache.app_instances), 1)
-        self.assertEqual(app.name, 'nomodel_app')
-        self.assertTrue(isinstance(app, MyApp))
-        self.assertEqual(rv, None)
-
-    def test_custom_models_path(self):
-        """
-        Test that custom models are imported correctly 
-        """
-        from nomodel_app import MyApp
-        rv = cache.load_app('model_app', False, MyApp)
-        app = cache.app_instances[0]
-        self.assertEqual(app.models_module.__name__, 'model_app.models')
-        self.assertEqual(rv.__name__, 'model_app.models')
-
-    def test_twice(self):
-        """
-        Test that loading an app twice results in only one app instance
+        Test that loading the same app twice results in only one app instance
+        being created
         """
         rv = cache.load_app('model_app')
         rv2 = cache.load_app('model_app')
@@ -304,16 +300,6 @@ class LoadAppTests(AppCacheTestCase):
         """
         self.assertRaises(ImportError, cache.load_app, 'garageland')
 
-    def test_installed_apps(self):
-        """
-        Test that the installed_apps attribute is populated correctly
-        """
-        settings.APP_CLASSES = ('nomodel_app.MyApp',)
-        settings.INSTALLED_APPS = ('model_app',)
-        # populate cache
-        cache.get_app_errors()
-        self.assertEqual(cache.installed_apps, ['nomodel_app', 'model_app',])
-
 class RegisterModelsTests(AppCacheTestCase):
     """Tests for the register_models function"""
 
@@ -349,6 +335,32 @@ class RegisterModelsTests(AppCacheTestCase):
         self.assertFalse(cache.app_cache_ready())
         self.assertEquals(cache.unbound_models['model_app']['person'], Person)
 
+class FindAppTests(AppCacheTestCase):
+    """Tests for the find_app function"""
+
+    def test_seeded(self):
+        """
+        Test that the correct app is returned when the cache is seeded
+        """
+        from django.core.apps import App
+        settings.INSTALLED_APPS = ('model_app',)
+        cache.get_app_errors()
+        self.assertTrue(cache.app_cache_ready())
+        rv = cache.find_app('model_app')
+        self.assertEquals(rv.name, 'model_app')
+        self.assertTrue(isinstance(rv, App))
+
+    def test_unseeded(self):
+        """
+        Test that the correct app is returned when the cache is unseeded
+        """
+        from django.core.apps import App
+        cache.load_app('model_app')
+        self.assertFalse(cache.app_cache_ready())
+        rv = cache.find_app('model_app')
+        self.assertEquals(rv.name, 'model_app')
+        self.assertTrue(isinstance(rv, App))
+
 if __name__ == '__main__':
     unittest.main()
 

tests/appcachetests/same_label/nomodel_app/__init__.py

@@ -1,6 +0,0 @@
-from django.core.apps import App
-
-class MyApp(App):
-
-    def __repr__(self):
-        return '<MyApp: %s>' % self.name

tests/appcachetests/same_label/nomodel_app/apps.py

@@ -0,0 +1,4 @@
+from django.core.apps import App
+
+class MyApp(App):
+    pass