[1.2.X] Fixed wrong import introduced in r15697.

from datetime import datetime

from django.test import TestCase

from django.utils import unittest

from django.utils.http import parse_etags, quote_etag, parse_http_date

FULL_RESPONSE = 'Test conditional get response'

        self.assertFullResponse(response, check_last_modified=False)

class ETagProcessing(unittest.TestCase):

class ETagProcessing(TestCase):

    def testParsing(self):

        etags = parse_etags(r'"", "etag", "e\"t\"ag", "e\\tag", W/"weak"')

        self.assertEquals(etags, ['', 'etag', 'e"t"ag', r'e\tag', 'weak'])

        self.assertEquals(quoted_etag, r'"e\\t\"ag"')

class HttpDateProcessing(unittest.TestCase):

class HttpDateProcessing(TestCase):

    def testParsingRfc1123(self):

        parsed = parse_http_date('Sun, 06 Nov 1994 08:49:37 GMT')

        self.assertEqual(datetime.utcfromtimestamp(parsed),