author | Todd Larsen <tlarsen@google.com> |
Fri, 29 Aug 2008 02:52:02 +0000 | |
changeset 122 | 95d0d954fe0b |
parent 54 | 03e267d67478 |
child 323 | ff1a9aa48cfd |
permissions | -rw-r--r-- |
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import re |
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import unittest |
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from urlparse import urlsplit, urlunsplit |
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from django.http import QueryDict |
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from django.db import transaction |
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from django.core import mail |
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from django.core.management import call_command |
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from django.test import _doctest as doctest |
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from django.test.client import Client |
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normalize_long_ints = lambda s: re.sub(r'(?<![\w])(\d+)L(?![\w])', '\\1', s) |
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def to_list(value): |
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""" |
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Puts value into a list if it's not already one. |
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Returns an empty list if value is None. |
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""" |
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if value is None: |
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value = [] |
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elif not isinstance(value, list): |
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value = [value] |
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return value |
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class OutputChecker(doctest.OutputChecker): |
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def check_output(self, want, got, optionflags): |
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ok = doctest.OutputChecker.check_output(self, want, got, optionflags) |
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# Doctest does an exact string comparison of output, which means long |
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# integers aren't equal to normal integers ("22L" vs. "22"). The |
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# following code normalizes long integers so that they equal normal |
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# integers. |
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if not ok: |
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return normalize_long_ints(want) == normalize_long_ints(got) |
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return ok |
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class DocTestRunner(doctest.DocTestRunner): |
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def __init__(self, *args, **kwargs): |
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doctest.DocTestRunner.__init__(self, *args, **kwargs) |
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self.optionflags = doctest.ELLIPSIS |
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def report_unexpected_exception(self, out, test, example, exc_info): |
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doctest.DocTestRunner.report_unexpected_exception(self, out, test, |
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example, exc_info) |
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# Rollback, in case of database errors. Otherwise they'd have |
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# side effects on other tests. |
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transaction.rollback_unless_managed() |
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class TestCase(unittest.TestCase): |
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def _pre_setup(self): |
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"""Performs any pre-test setup. This includes: |
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* Flushing the database. |
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* If the Test Case class has a 'fixtures' member, installing the |
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named fixtures. |
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* Clearing the mail test outbox. |
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""" |
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call_command('flush', verbosity=0, interactive=False) |
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if hasattr(self, 'fixtures'): |
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# We have to use this slightly awkward syntax due to the fact |
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# that we're using *args and **kwargs together. |
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call_command('loaddata', *self.fixtures, **{'verbosity': 0}) |
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mail.outbox = [] |
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def __call__(self, result=None): |
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""" |
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Wrapper around default __call__ method to perform common Django test |
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set up. This means that user-defined Test Cases aren't required to |
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include a call to super().setUp(). |
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""" |
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self.client = Client() |
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try: |
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self._pre_setup() |
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except (KeyboardInterrupt, SystemExit): |
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raise |
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except Exception: |
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import sys |
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result.addError(self, sys.exc_info()) |
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return |
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super(TestCase, self).__call__(result) |
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def assertRedirects(self, response, expected_url, status_code=302, |
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target_status_code=200, host=None): |
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"""Asserts that a response redirected to a specific URL, and that the |
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redirect URL can be loaded. |
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Note that assertRedirects won't work for external links since it uses |
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TestClient to do a request. |
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""" |
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self.assertEqual(response.status_code, status_code, |
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("Response didn't redirect as expected: Response code was %d" |
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" (expected %d)" % (response.status_code, status_code))) |
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url = response['Location'] |
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scheme, netloc, path, query, fragment = urlsplit(url) |
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e_scheme, e_netloc, e_path, e_query, e_fragment = urlsplit(expected_url) |
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if not (e_scheme or e_netloc): |
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expected_url = urlunsplit(('http', host or 'testserver', e_path, |
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e_query, e_fragment)) |
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self.assertEqual(url, expected_url, |
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"Response redirected to '%s', expected '%s'" % (url, expected_url)) |
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|
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# Get the redirection page, using the same client that was used |
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# to obtain the original response. |
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redirect_response = response.client.get(path, QueryDict(query)) |
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self.assertEqual(redirect_response.status_code, target_status_code, |
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("Couldn't retrieve redirection page '%s': response code was %d" |
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" (expected %d)") % |
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(path, redirect_response.status_code, target_status_code)) |
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def assertContains(self, response, text, count=None, status_code=200): |
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""" |
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Asserts that a response indicates that a page was retrieved |
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114 |
successfully, (i.e., the HTTP status code was as expected), and that |
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``text`` occurs ``count`` times in the content of the response. |
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116 |
If ``count`` is None, the count doesn't matter - the assertion is true |
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117 |
if the text occurs at least once in the response. |
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118 |
""" |
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119 |
self.assertEqual(response.status_code, status_code, |
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120 |
"Couldn't retrieve page: Response code was %d (expected %d)'" % |
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121 |
(response.status_code, status_code)) |
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122 |
real_count = response.content.count(text) |
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123 |
if count is not None: |
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124 |
self.assertEqual(real_count, count, |
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125 |
"Found %d instances of '%s' in response (expected %d)" % |
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126 |
(real_count, text, count)) |
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127 |
else: |
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128 |
self.failUnless(real_count != 0, |
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129 |
"Couldn't find '%s' in response" % text) |
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130 |
|
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131 |
def assertFormError(self, response, form, field, errors): |
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132 |
""" |
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133 |
Asserts that a form used to render the response has a specific field |
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134 |
error. |
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135 |
""" |
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136 |
# Put context(s) into a list to simplify processing. |
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137 |
contexts = to_list(response.context) |
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138 |
if not contexts: |
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139 |
self.fail('Response did not use any contexts to render the' |
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140 |
' response') |
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141 |
|
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142 |
# Put error(s) into a list to simplify processing. |
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143 |
errors = to_list(errors) |
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144 |
|
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145 |
# Search all contexts for the error. |
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146 |
found_form = False |
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147 |
for i,context in enumerate(contexts): |
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148 |
if form not in context: |
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149 |
continue |
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150 |
found_form = True |
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151 |
for err in errors: |
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152 |
if field: |
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153 |
if field in context[form].errors: |
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154 |
field_errors = context[form].errors[field] |
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self.failUnless(err in field_errors, |
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156 |
"The field '%s' on form '%s' in" |
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157 |
" context %d does not contain the" |
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158 |
" error '%s' (actual errors: %s)" % |
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159 |
(field, form, i, err, |
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160 |
repr(field_errors))) |
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161 |
elif field in context[form].fields: |
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162 |
self.fail("The field '%s' on form '%s' in context %d" |
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163 |
" contains no errors" % (field, form, i)) |
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164 |
else: |
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165 |
self.fail("The form '%s' in context %d does not" |
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166 |
" contain the field '%s'" % |
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167 |
(form, i, field)) |
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168 |
else: |
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169 |
non_field_errors = context[form].non_field_errors() |
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170 |
self.failUnless(err in non_field_errors, |
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171 |
"The form '%s' in context %d does not contain the" |
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172 |
" non-field error '%s' (actual errors: %s)" % |
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173 |
(form, i, err, non_field_errors)) |
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174 |
if not found_form: |
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175 |
self.fail("The form '%s' was not used to render the response" % |
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176 |
form) |
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177 |
|
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178 |
def assertTemplateUsed(self, response, template_name): |
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179 |
""" |
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180 |
Asserts that the template with the provided name was used in rendering |
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181 |
the response. |
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182 |
""" |
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183 |
template_names = [t.name for t in to_list(response.template)] |
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184 |
if not template_names: |
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185 |
self.fail('No templates used to render the response') |
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186 |
self.failUnless(template_name in template_names, |
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187 |
(u"Template '%s' was not a template used to render the response." |
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188 |
u" Actual template(s) used: %s") % (template_name, |
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189 |
u', '.join(template_names))) |
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190 |
|
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191 |
def assertTemplateNotUsed(self, response, template_name): |
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192 |
""" |
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193 |
Asserts that the template with the provided name was NOT used in |
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194 |
rendering the response. |
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195 |
""" |
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196 |
template_names = [t.name for t in to_list(response.template)] |
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197 |
self.failIf(template_name in template_names, |
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198 |
(u"Template '%s' was used unexpectedly in rendering the" |
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199 |
u" response") % template_name) |