Modified the egg template loader tests; firstly to ensure that we are testing…

Modified the egg template loader tests; firstly to ensure that we are testing the new, non-deprecated interface; secondly to ensure that the old deprecated interface is also tested, but deprecation warnings are silenced.

git-svn-id: http://code.djangoproject.com/svn/django/trunk@13812 bcc190cf-cafb-0310-a4f2-bffc1f526a37

tests/regressiontests/templates/loaders.py

@@ -15,9 +15,11 @@ import pkg_resources
 import imp
 import StringIO
 import os.path
+import warnings
 
 from django.template import TemplateDoesNotExist, Context
 from django.template.loaders.eggs import load_template_source as lts_egg
+from django.template.loaders.eggs import Loader as EggLoader
 from django.template import loader
 
 # Mock classes and objects for pkg_resources functions.
@@ -53,7 +55,33 @@ def create_egg(name, resources):
     egg._resources = resources
     sys.modules[name] = egg
 
-class EggLoader(unittest.TestCase):
+class DeprecatedEggLoaderTest(unittest.TestCase):
+    "Test the deprecated load_template_source interface to the egg loader"
+    def setUp(self):
+        pkg_resources._provider_factories[MockLoader] = MockProvider
+
+        self.empty_egg = create_egg("egg_empty", {})
+        self.egg_1 = create_egg("egg_1", {
+            os.path.normcase('templates/y.html') : StringIO.StringIO("y"),
+            os.path.normcase('templates/x.txt') : StringIO.StringIO("x"),
+        })
+        self._old_installed_apps = settings.INSTALLED_APPS
+        settings.INSTALLED_APPS = []
+        warnings.simplefilter("ignore", PendingDeprecationWarning)
+
+    def tearDown(self):
+        settings.INSTALLED_APPS = self._old_installed_apps
+        warnings.resetwarnings()
+
+    def test_existing(self):
+        "A template can be loaded from an egg"
+        settings.INSTALLED_APPS = ['egg_1']
+        contents, template_name = lts_egg("y.html")
+        self.assertEqual(contents, "y")
+        self.assertEqual(template_name, "egg:egg_1:templates/y.html")
+
+
+class EggLoaderTest(unittest.TestCase):
     def setUp(self):
         pkg_resources._provider_factories[MockLoader] = MockProvider
 
@@ -71,24 +99,28 @@ class EggLoader(unittest.TestCase):
     def test_empty(self):
         "Loading any template on an empty egg should fail"
         settings.INSTALLED_APPS = ['egg_empty']
-        self.assertRaises(TemplateDoesNotExist, lts_egg, "not-existing.html")
+        egg_loader = EggLoader()
+        self.assertRaises(TemplateDoesNotExist, egg_loader.load_template_source, "not-existing.html")
 
     def test_non_existing(self):
         "Template loading fails if the template is not in the egg"
         settings.INSTALLED_APPS = ['egg_1']
-        self.assertRaises(TemplateDoesNotExist, lts_egg, "not-existing.html")
+        egg_loader = EggLoader()
+        self.assertRaises(TemplateDoesNotExist, egg_loader.load_template_source, "not-existing.html")
 
     def test_existing(self):
         "A template can be loaded from an egg"
         settings.INSTALLED_APPS = ['egg_1']
-        contents, template_name = lts_egg("y.html")
+        egg_loader = EggLoader()
+        contents, template_name = egg_loader.load_template_source("y.html")
         self.assertEqual(contents, "y")
         self.assertEqual(template_name, "egg:egg_1:templates/y.html")
 
     def test_not_installed(self):
         "Loading an existent template from an egg not included in INSTALLED_APPS should fail"
         settings.INSTALLED_APPS = []
-        self.assertRaises(TemplateDoesNotExist, lts_egg, "y.html")
+        egg_loader = EggLoader()
+        self.assertRaises(TemplateDoesNotExist, egg_loader.load_template_source, "y.html")
 
 class CachedLoader(unittest.TestCase):
     def setUp(self):