From 2133f3157eff853329bafb7fda74c3c8fb4eae42 Mon Sep 17 00:00:00 2001
From: Aymeric Augustin <aymeric.augustin@m4x.org>
Date: Mon, 26 Jan 2015 21:57:10 +0100
Subject: Fixed #24168 -- Allowed selecting a template engine in a few APIs.

Specifically in rendering shortcuts, template responses, and class-based
views that return template responses.

Also added a test for render_to_response(status=...) which was missing
from fdbfc980.

Thanks Tim and Carl for the review.
---
 django/test/utils.py | 24 +++++++++++++++++++++++-
 1 file changed, 23 insertions(+), 1 deletion(-)

(limited to 'django/test')

diff --git a/django/test/utils.py b/django/test/utils.py
index 1991602293..f0d8993a40 100644
--- a/django/test/utils.py
+++ b/django/test/utils.py
@@ -3,7 +3,7 @@ import logging
 import re
 import sys
 import time
-from unittest import skipUnless
+from unittest import skipIf, skipUnless
 import warnings
 from functools import wraps
 from xml.dom.minidom import parseString, Node
@@ -20,6 +20,11 @@ from django.utils import six
 from django.utils.encoding import force_str
 from django.utils.translation import deactivate
 
+try:
+    import jinja2
+except ImportError:
+    jinja2 = None
+
 
 __all__ = (
     'Approximate', 'ContextList', 'get_runner',
@@ -573,3 +578,20 @@ def freeze_time(t):
         yield
     finally:
         time.time = _real_time
+
+
+def require_jinja2(test_func):
+    """
+    Decorator to enable a Jinja2 template engine in addition to the regular
+    Django template engine for a test or skip it if Jinja2 isn't available.
+    """
+    test_func = skipIf(jinja2 is None, "this test requires jinja2")(test_func)
+    test_func = override_settings(TEMPLATES=[{
+        'BACKEND': 'django.template.backends.django.DjangoTemplates',
+        'APP_DIRS': True,
+    }, {
+        'BACKEND': 'django.template.backends.jinja2.Jinja2',
+        'APP_DIRS': True,
+        'OPTIONS': {'keep_trailing_newline': True},
+    }])(test_func)
+    return test_func
-- 
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