tests.py

   1 import sys
   2 import traceback
   3
   4 from django import template
   5 from django.conf import settings
   6 from django.db import connection
   7 from django.template import loader
   8 from django.template.loaders import cached
   9 from django.test import TestCase
  10 from django.test.utils import setup_test_template_loader
  11
  12 from philo.contrib.penfield.models import Blog, BlogView, BlogEntry
  13 from philo.exceptions import AncestorDoesNotExist
  14 from philo.models import Node, Page, Template
  15
  16
  17 class TemplateTestCase(TestCase):
  18         fixtures = ['test_fixtures.json']
  19
  20         def test_templates(self):
  21                 "Tests to make sure that embed behaves with complex includes and extends"
  22                 template_tests = self.get_template_tests()
  23
  24                 # Register our custom template loader. Shamelessly cribbed from django/tests/regressiontests/templates/tests.py:384.
  25                 cache_loader = setup_test_template_loader(
  26                         dict([(name, t[0]) for name, t in template_tests.iteritems()]),
  27                         use_cached_loader=True,
  28                 )
  29
  30                 failures = []
  31                 tests = template_tests.items()
  32                 tests.sort()
  33
  34                 # Turn TEMPLATE_DEBUG off, because tests assume that.
  35                 old_td, settings.TEMPLATE_DEBUG = settings.TEMPLATE_DEBUG, False
  36
  37                 # Set TEMPLATE_STRING_IF_INVALID to a known string.
  38                 old_invalid = settings.TEMPLATE_STRING_IF_INVALID
  39                 expected_invalid_str = 'INVALID'
  40
  41                 # Run tests
  42                 for name, vals in tests:
  43                         xx, context, result = vals
  44                         try:
  45                                 test_template = loader.get_template(name)
  46                                 output = test_template.render(template.Context(context))
  47                         except Exception:
  48                                 exc_type, exc_value, exc_tb = sys.exc_info()
  49                                 if exc_type != result:
  50                                         tb = '\n'.join(traceback.format_exception(exc_type, exc_value, exc_tb))
  51                                         failures.append("Template test %s -- FAILED. Got %s, exception: %s\n%s" % (name, exc_type, exc_value, tb))
  52                                 continue
  53                         if output != result:
  54                                 failures.append("Template test %s -- FAILED. Expected %r, got %r" % (name, result, output))
  55
  56                 # Cleanup
  57                 settings.TEMPLATE_DEBUG = old_td
  58                 settings.TEMPLATE_STRING_IF_INVALID = old_invalid
  59                 loader.template_source_loaders = old_template_loaders
  60
  61                 self.assertEqual(failures, [], "Tests failed:\n%s\n%s" % ('-'*70, ("\n%s\n" % ('-'*70)).join(failures)))
  62
  63
  64         def get_template_tests(self):
  65                 # SYNTAX --
  66                 # 'template_name': ('template contents', 'context dict', 'expected string output' or Exception class)
  67                 blog = Blog.objects.all()[0]
  68                 return {
  69                         # EMBED INCLUSION HANDLING
  70
  71                         'embed01': ('{{ embedded.title|safe }}', {'embedded': blog}, blog.title),
  72                         'embed02': ('{{ embedded.title|safe }}{{ var1 }}{{ var2 }}', {'embedded': blog}, blog.title),
  73                         'embed03': ('{{ embedded.title|safe }} is a lie!', {'embedded': blog}, '%s is a lie!' % blog.title),
  74
  75                         # Simple template structure with embed
  76                         'simple01': ('{% embed penfield.blog with "embed01" %}{% embed penfield.blog 1 %}Simple{% block one %}{% endblock %}', {'blog': blog}, '%sSimple' % blog.title),
  77                         'simple02': ('{% extends "simple01" %}', {}, '%sSimple' % blog.title),
  78                         'simple03': ('{% embed penfield.blog with "embed000" %}', {}, settings.TEMPLATE_STRING_IF_INVALID),
  79                         'simple04': ('{% embed penfield.blog 1 %}', {}, settings.TEMPLATE_STRING_IF_INVALID),
  80                         'simple05': ('{% embed penfield.blog with "embed01" %}{% embed blog %}', {'blog': blog}, blog.title),
  81
  82                         # Kwargs
  83                         'kwargs01': ('{% embed penfield.blog with "embed02" %}{% embed penfield.blog 1 var1="hi" var2=lo %}', {'lo': 'lo'}, '%shilo' % blog.title),
  84
  85                         # Filters/variables
  86                         'filters01': ('{% embed penfield.blog with "embed02" %}{% embed penfield.blog 1 var1=hi|first var2=lo|slice:"3" %}', {'hi': ["These", "words"], 'lo': 'lower'}, '%sTheselow' % blog.title),
  87                         'filters02': ('{% embed penfield.blog with "embed01" %}{% embed penfield.blog entry %}', {'entry': 1}, blog.title),
  88
  89                         # Blocky structure
  90                         'block01': ('{% block one %}Hello{% endblock %}', {}, 'Hello'),
  91                         'block02': ('{% extends "simple01" %}{% block one %}{% embed penfield.blog 1 %}{% endblock %}', {}, "%sSimple%s" % (blog.title, blog.title)),
  92                         'block03': ('{% extends "simple01" %}{% embed penfield.blog with "embed03" %}{% block one %}{% embed penfield.blog 1 %}{% endblock %}', {}, "%sSimple%s is a lie!" % (blog.title, blog.title)),
  93
  94                         # Blocks and includes
  95                         'block-include01': ('{% extends "simple01" %}{% embed penfield.blog with "embed03" %}{% block one %}{% include "simple01" %}{% embed penfield.blog 1 %}{% endblock %}', {}, "%sSimple%sSimple%s is a lie!" % (blog.title, blog.title, blog.title)),
  96                         'block-include02': ('{% extends "simple01" %}{% block one %}{% include "simple04" %}{% embed penfield.blog with "embed03" %}{% include "simple04" %}{% embed penfield.blog 1 %}{% endblock %}', {}, "%sSimple%s%s is a lie!%s is a lie!" % (blog.title, blog.title, blog.title, blog.title)),
  97
  98                         # Tests for more complex situations...
  99                         'complex01': ('{% block one %}{% endblock %}complex{% block two %}{% endblock %}', {}, 'complex'),
 100                         'complex02': ('{% extends "complex01" %}', {}, 'complex'),
 101                         'complex03': ('{% extends "complex02" %}{% embed penfield.blog with "embed01" %}', {}, 'complex'),
 102                         'complex04': ('{% extends "complex03" %}{% block one %}{% embed penfield.blog 1 %}{% endblock %}', {}, '%scomplex' % blog.title),
 103                         'complex05': ('{% extends "complex03" %}{% block one %}{% include "simple04" %}{% endblock %}', {}, '%scomplex' % blog.title),
 104                 }
 105
 106
 107 class NodeURLTestCase(TestCase):
 108         """Tests the features of the node_url template tag."""
 109         urls = 'philo.urls'
 110         fixtures = ['test_fixtures.json']
 111
 112         def setUp(self):
 113                 if 'south' in settings.INSTALLED_APPS:
 114                         from south.management.commands.migrate import Command
 115                         command = Command()
 116                         command.handle(all_apps=True)
 117
 118                 self.templates = [
 119                                 ("{% node_url %}", "/root/second/"),
 120                                 ("{% node_url for node2 %}", "/root/second2/"),
 121                                 ("{% node_url as hello %}<p>{{ hello|slice:'1:' }}</p>", "<p>root/second/</p>"),
 122                                 ("{% node_url for nodes|first %}", "/root/"),
 123                                 ("{% node_url with entry %}", settings.TEMPLATE_STRING_IF_INVALID),
 124                                 ("{% node_url with entry for node2 %}", "/root/second2/2010/10/20/first-entry"),
 125                                 ("{% node_url with tag for node2 %}", "/root/second2/tags/test-tag/"),
 126                                 ("{% node_url with date for node2 %}", "/root/second2/2010/10/20"),
 127                                 ("{% node_url entries_by_day year=date|date:'Y' month=date|date:'m' day=date|date:'d' for node2 as goodbye %}<em>{{ goodbye|upper }}</em>", "<em>/ROOT/SECOND2/2010/10/20</em>"),
 128                                 ("{% node_url entries_by_month year=date|date:'Y' month=date|date:'m' for node2 %}", "/root/second2/2010/10"),
 129                                 ("{% node_url entries_by_year year=date|date:'Y' for node2 %}", "/root/second2/2010/"),
 130                 ]
 131
 132                 nodes = Node.objects.all()
 133                 blog = Blog.objects.all()[0]
 134
 135                 self.context = template.Context({
 136                         'node': nodes.get(slug='second'),
 137                         'node2': nodes.get(slug='second2'),
 138                         'nodes': nodes,
 139                         'entry': BlogEntry.objects.all()[0],
 140                         'tag': blog.entry_tags.all()[0],
 141                         'date': blog.entry_dates['day'][0]
 142                 })
 143
 144         def test_nodeurl(self):
 145                 for string, result in self.templates:
 146                         self.assertEqual(template.Template(string).render(self.context), result)
 147
 148 class TreePathTestCase(TestCase):
 149         urls = 'philo.urls'
 150         fixtures = ['test_fixtures.json']
 151
 152         def setUp(self):
 153                 if 'south' in settings.INSTALLED_APPS:
 154                         from south.management.commands.migrate import Command
 155                         command = Command()
 156                         command.handle(all_apps=True)
 157
 158         def assertQueryLimit(self, max, expected_result, *args, **kwargs):
 159                 # As a rough measure of efficiency, limit the number of queries required for a given operation.
 160                 settings.DEBUG = True
 161                 call = kwargs.pop('callable', Node.objects.get_with_path)
 162                 try:
 163                         queries = len(connection.queries)
 164                         if isinstance(expected_result, type) and issubclass(expected_result, Exception):
 165                                 self.assertRaises(expected_result, call, *args, **kwargs)
 166                         else:
 167                                 self.assertEqual(call(*args, **kwargs), expected_result)
 168                         queries = len(connection.queries) - queries
 169                         if queries > max:
 170                                 raise AssertionError('"%d" unexpectedly not less than or equal to "%s"' % (queries, max))
 171                 finally:
 172                         settings.DEBUG = False
 173
 174         def test_get_with_path(self):
 175                 root = Node.objects.get(slug='root')
 176                 third = Node.objects.get(slug='third')
 177                 second2 = Node.objects.get(slug='second2')
 178                 fifth = Node.objects.get(slug='fifth')
 179                 e = Node.DoesNotExist
 180
 181                 # Empty segments
 182                 self.assertQueryLimit(0, root, '', root=root)
 183                 self.assertQueryLimit(0, e, '')
 184                 self.assertQueryLimit(0, (root, None), '', root=root, absolute_result=False)
 185
 186                 # Absolute result
 187                 self.assertQueryLimit(1, third, 'root/second/third')
 188                 self.assertQueryLimit(1, third, 'second/third', root=root)
 189                 self.assertQueryLimit(1, third, 'root//////second/third///')
 190
 191                 self.assertQueryLimit(1, e, 'root/secont/third')
 192                 self.assertQueryLimit(1, e, 'second/third')
 193
 194                 # Non-absolute result (binary search)
 195                 self.assertQueryLimit(2, (second2, 'sub/path/tail'), 'root/second2/sub/path/tail', absolute_result=False)
 196                 self.assertQueryLimit(3, (second2, 'sub/'), 'root/second2/sub/', absolute_result=False)
 197                 self.assertQueryLimit(2, e, 'invalid/path/1/2/3/4/5/6/7/8/9/1/2/3/4/5/6/7/8/9/0', absolute_result=False)
 198                 self.assertQueryLimit(1, (root, None), 'root', absolute_result=False)
 199                 self.assertQueryLimit(2, (second2, None), 'root/second2', absolute_result=False)
 200                 self.assertQueryLimit(3, (third, None), 'root/second/third', absolute_result=False)
 201
 202                 # with root != None
 203                 self.assertQueryLimit(1, (second2, None), 'second2', root=root, absolute_result=False)
 204                 self.assertQueryLimit(2, (third, None), 'second/third', root=root, absolute_result=False)
 205
 206                 # Preserve trailing slash
 207                 self.assertQueryLimit(2, (second2, 'sub/path/tail/'), 'root/second2/sub/path/tail/', absolute_result=False)
 208
 209                 # Speed increase for leaf nodes - should this be tested?
 210                 self.assertQueryLimit(1, (fifth, 'sub/path/tail/len/five'), 'root/second/third/fourth/fifth/sub/path/tail/len/five', absolute_result=False)
 211
 212         def test_get_path(self):
 213                 root = Node.objects.get(slug='root')
 214                 root2 = Node.objects.get(slug='root')
 215                 third = Node.objects.get(slug='third')
 216                 second2 = Node.objects.get(slug='second2')
 217                 fifth = Node.objects.get(slug='fifth')
 218                 e = AncestorDoesNotExist
 219
 220                 self.assertQueryLimit(0, 'root', callable=root.get_path)
 221                 self.assertQueryLimit(0, '', root2, callable=root.get_path)
 222                 self.assertQueryLimit(1, 'root/second/third', callable=third.get_path)
 223                 self.assertQueryLimit(1, 'second/third', root, callable=third.get_path)
 224                 self.assertQueryLimit(1, e, third, callable=second2.get_path)
 225                 self.assertQueryLimit(1, '? - ?', root, ' - ', 'title', callable=third.get_path)