Fixed a bug with call_filter not working properly

2 files changed, 6 insertions, 2 deletions

diff --git a/jinja2/environment.py b/jinja2/environment.py
index fad5e23..45fabad 100644
--- a/jinja2/environment.py
+++ b/jinja2/environment.py
@@ -411,7 +411,7 @@ class Environment(object):
         func = self.filters.get(name)
         if func is None:
             raise TemplateRuntimeError('no filter named %r' % name)
-        args = list(args or ())
+        args = [value] + list(args or ())
         if getattr(func, 'contextfilter', False):
             if context is None:
                 raise TemplateRuntimeError('Attempted to invoke context '
@@ -426,7 +426,7 @@ class Environment(object):
             args.insert(0, eval_ctx)
         elif getattr(func, 'environmentfilter', False):
             args.insert(0, self)
-        return func(value, *args, **(kwargs or {}))
+        return func(*args, **(kwargs or {}))
 
     def call_test(self, name, value, args=None, kwargs=None):
         """Invokes a test on a value the same way the compiler does it.
diff --git a/jinja2/testsuite/filters.py b/jinja2/testsuite/filters.py
index 5219f76..1e1706f 100644
--- a/jinja2/testsuite/filters.py
+++ b/jinja2/testsuite/filters.py
@@ -19,6 +19,10 @@ env = Environment()
 
 class FilterTestCase(JinjaTestCase):
 
+    def test_filter_calling(self):
+        rv = env.call_filter('sum', [1, 2, 3])
+        self.assert_equal(rv, 6)
+
     def test_capitalize(self):
         tmpl = env.from_string('{{ "foo bar"|capitalize }}')
         assert tmpl.render() == 'Foo bar'