improved tests

pipeline/jinja2/ext.py

@@ -24,9 +24,7 @@ class PipelineExtension(Extension):
                 package_name = parser.parse_expression().value
 
         if tag.value == "compressed_css":
-            return nodes.Output([
-                self.call_method('package_css', args=[package_name]),
-            ]).set_lineno(tag.lineno)
+            return self.package_css(package_name)
 
         if tag.value == "compressed_js":
             return nodes.Output([
@@ -44,6 +42,7 @@ class PipelineExtension(Extension):
         try:
             package = packager.package_for('css', package_name)
         except PackageNotFound:
+            return self.environment.get_template('pipeline/css.jinja').module
             return nodes.Markup('')
 
         if settings.PIPELINE:

tests/tests/__init__.py

 # -*- coding: utf-8 flake8: noqa -*-
 from .test_compiler import *
 from .test_compressor import *
+from .test_extension import *
 from .test_glob import *
 from .test_packager import *
 from .test_storage import *
-from .test_utils import *
+from .test_utils import *
\ No newline at end of file

tests/tests/test_extension.py

+# -*- coding: utf-8 -*-
+from __future__ import unicode_literals
+
+from jinja2 import Environment, PackageLoader
+
+from django.test import TestCase
+
+from pipeline.jinja2.ext import PipelineExtension
+
+
+class ExtensionTest(TestCase):
+    def setUp(self):
+        self.env = Environment(extensions=[PipelineExtension], loader=
+            PackageLoader('pipeline', 'templates'))
+
+    def test_no_package(self):
+        template = self.env.from_string(u"""{% compressed_css 'unknow' %}""")
+        self.assertEqual(u'', template.render(context))