text: # -*- encoding: utf-8 -*-
  from __future__ import unicode_literals
  
  import codecs
  import os
  import posixpath
  import shutil
  import sys
  import tempfile
  import unittest
  
  from django.template import loader, Context
  from django.conf import settings
  from django.core.cache.backends.base import BaseCache
  from django.core.exceptions import ImproperlyConfigured
  from django.core.management import call_command
  from django.test import TestCase, override_settings
  from django.utils.encoding import force_text
  from django.utils.functional import empty
  from django.utils._os import rmtree_errorhandler, upath, symlinks_supported
  from django.utils import six
  
  from django.contrib.staticfiles import finders, storage
  from django.contrib.staticfiles.management.commands import collectstatic
  
  from .storage import DummyStorage
  
  
  TEST_ROOT = os.path.dirname(upath(__file__))
  TEST_SETTINGS = {
      'DEBUG': True,
      'MEDIA_URL': '/media/',
      'STATIC_URL': '/static/',
      'MEDIA_ROOT': os.path.join(TEST_ROOT, 'project', 'site_media', 'media'),
      'STATIC_ROOT': os.path.join(TEST_ROOT, 'project', 'site_media', 'static'),
      'STATICFILES_DIRS': (
          os.path.join(TEST_ROOT, 'project', 'documents'),
          ('prefix', os.path.join(TEST_ROOT, 'project', 'prefixed')),
      ),
      'STATICFILES_FINDERS': (
          'django.contrib.staticfiles.finders.FileSystemFinder',
          'django.contrib.staticfiles.finders.AppDirectoriesFinder',
          'django.contrib.staticfiles.finders.DefaultStorageFinder',
      ),
  }
  from django.contrib.staticfiles.management.commands.collectstatic import Command as CollectstaticCommand
  
  
  class BaseStaticFilesTestCase(object):
      """
      Test case with a couple utility assertions.
      """
      def setUp(self):
          # Clear the cached staticfiles_storage out, this is because when it first
          # gets accessed (by some other test), it evaluates settings.STATIC_ROOT,
          # since we're planning on changing that we need to clear out the cache.
          storage.staticfiles_storage._wrapped = empty
          # Clear the cached staticfile finders, so they are reinitialized every
          # run and pick up changes in settings.STATICFILES_DIRS.
          finders.get_finder.cache_clear()
  
          testfiles_path = os.path.join(TEST_ROOT, 'apps', 'test', 'static', 'test')
          # To make sure SVN doesn't hangs itself with the non-ASCII characters
          # during checkout, we actually create one file dynamically.
          self._nonascii_filepath = os.path.join(testfiles_path, '\u2297.txt')
          with codecs.open(self._nonascii_filepath, 'w', 'utf-8') as f:
              f.write("\u2297 in the app dir")
          # And also create the stupid hidden file to dwarf the setup.py's
          # package data handling.
          self._hidden_filepath = os.path.join(testfiles_path, '.hidden')
          with codecs.open(self._hidden_filepath, 'w', 'utf-8') as f:
              f.write("should be ignored")
          self._backup_filepath = os.path.join(
              TEST_ROOT, 'project', 'documents', 'test', 'backup~')
          with codecs.open(self._backup_filepath, 'w', 'utf-8') as f:
              f.write("should be ignored")
  
      def tearDown(self):
          os.unlink(self._nonascii_filepath)
          os.unlink(self._hidden_filepath)
          os.unlink(self._backup_filepath)
  
      def assertFileContains(self, filepath, text):
          self.assertIn(text, self._get_file(force_text(filepath)),
                        "'%s' not in '%s'" % (text, filepath))
  
      def assertFileNotFound(self, filepath):
          self.assertRaises(IOError, self._get_file, filepath)
  
      def render_template(self, template, **kwargs):
          if isinstance(template, six.string_types):
              template = loader.get_template_from_string(template)
          return template.render(Context(kwargs)).strip()
  
      def static_template_snippet(self, path, asvar=False):
          if asvar:
              return "{%% load static from staticfiles %%}{%% static '%s' as var %%}{{ var }}" % path
          return "{%% load static from staticfiles %%}{%% static '%s' %%}" % path
  
      def assertStaticRenders(self, path, result, asvar=False, **kwargs):
          template = self.static_template_snippet(path, asvar)
          self.assertEqual(self.render_template(template, **kwargs), result)
  
      def assertStaticRaises(self, exc, path, result, asvar=False, **kwargs):
          self.assertRaises(exc, self.assertStaticRenders, path, result, **kwargs)
  
  
  @override_settings(**TEST_SETTINGS)
  class StaticFilesTestCase(BaseStaticFilesTestCase, TestCase):
      pass
  
  
  class BaseCollectionTestCase(BaseStaticFilesTestCase):
      """
      Tests shared by all file finding features (collectstatic,
      findstatic, and static serve view).
  
      This relies on the asserts defined in BaseStaticFilesTestCase, but
      is separated because some test cases need those asserts without
      all these tests.
      """
      def setUp(self):
          super(BaseCollectionTestCase, self).setUp()
          self.old_root = settings.STATIC_ROOT
          settings.STATIC_ROOT = tempfile.mkdtemp(dir=os.environ['DJANGO_TEST_TEMP_DIR'])
          self.run_collectstatic()
          # Use our own error handler that can handle .svn dirs on Windows
          self.addCleanup(shutil.rmtree, settings.STATIC_ROOT,
                          ignore_errors=True, onerror=rmtree_errorhandler)
  
      def tearDown(self):
          settings.STATIC_ROOT = self.old_root
          super(BaseCollectionTestCase, self).tearDown()
  
      def run_collectstatic(self, **kwargs):
          call_command('collectstatic', interactive=False, verbosity='0',
                       ignore_patterns=['*.ignoreme'], **kwargs)
  
      def _get_file(self, filepath):
          assert filepath, 'filepath is empty.'
          filepath = os.path.join(settings.STATIC_ROOT, filepath)
          with codecs.open(filepath, "r", "utf-8") as f:
              return f.read()
  
  
  class CollectionTestCase(BaseCollectionTestCase, StaticFilesTestCase):
      pass
  
  
  class TestDefaults(object):
      """
      A few standard test cases.
      """
      def test_staticfiles_dirs(self):
          """
          Can find a file in a STATICFILES_DIRS directory.
          """
          self.assertFileContains('test.txt', 'Can we find')
          self.assertFileContains(os.path.join('prefix', 'test.txt'), 'Prefix')
  
      def test_staticfiles_dirs_subdir(self):
          """
          Can find a file in a subdirectory of a STATICFILES_DIRS
          directory.
          """
          self.assertFileContains('subdir/test.txt', 'Can we find')
  
      def test_staticfiles_dirs_priority(self):
          """
          File in STATICFILES_DIRS has priority over file in app.
          """
          self.assertFileContains('test/file.txt', 'STATICFILES_DIRS')
  
      def test_app_files(self):
          """
          Can find a file in an app static/ directory.
          """
          self.assertFileContains('test/file1.txt', 'file1 in the app dir')
  
      def test_nonascii_filenames(self):
          """
          Can find a file with non-ASCII character in an app static/ directory.
          """
          self.assertFileContains('test/⊗.txt', '⊗ in the app dir')
  
      def test_camelcase_filenames(self):
          """
          Can find a file with capital letters.
          """
          self.assertFileContains('test/camelCase.txt', 'camelCase')
  
  
  class TestFindStatic(CollectionTestCase, TestDefaults):
      """
      Test ``findstatic`` management command.
      """
      def _get_file(self, filepath):
          out = six.StringIO()
          call_command('findstatic', filepath, all=False, verbosity=0, stdout=out)
          out.seek(0)
          lines = [l.strip() for l in out.readlines()]
          with codecs.open(force_text(lines[0].strip()), "r", "utf-8") as f:
              return f.read()
  
      def test_all_files(self):
          """
          Test that findstatic returns all candidate files if run without --first and -v1.
          """
          out = six.StringIO()
          call_command('findstatic', 'test/file.txt', verbosity=1, stdout=out)
          out.seek(0)
          lines = [l.strip() for l in out.readlines()]
          self.assertEqual(len(lines), 3)  # three because there is also the "Found <file> here" line
          self.assertIn('project', force_text(lines[1]))
          self.assertIn('apps', force_text(lines[2]))
  
      def test_all_files_less_verbose(self):
          """
          Test that findstatic returns all candidate files if run without --first and -v0.
          """
          out = six.StringIO()
          call_command('findstatic', 'test/file.txt', verbosity=0, stdout=out)
          out.seek(0)
          lines = [l.strip() for l in out.readlines()]
          self.assertEqual(len(lines), 2)
          self.assertIn('project', force_text(lines[0]))
          self.assertIn('apps', force_text(lines[1]))
  
      def test_all_files_more_verbose(self):
          """
          Test that findstatic returns all candidate files if run without --first and -v2.
          Also, test that findstatic returns the searched locations with -v2.
          """
          out = six.StringIO()
          call_command('findstatic', 'test/file.txt', verbosity=2, stdout=out)
          out.seek(0)
          lines = [l.strip() for l in out.readlines()]
          self.assertIn('project', force_text(lines[1]))
          self.assertIn('apps', force_text(lines[2]))
          self.assertIn("Looking in the following locations:", force_text(lines[3]))
          searched_locations = ', '.join(lines[4:])
          # AppDirectoriesFinder searched locations
          self.assertIn(os.path.join('staticfiles_tests', 'apps', 'test', 'static'),
                        searched_locations)
          self.assertIn(os.path.join('staticfiles_tests', 'apps', 'no_label', 'static'),
                        searched_locations)
          self.assertIn(os.path.join('django', 'contrib', 'admin', 'static'),
                        searched_locations)
          self.assertIn(os.path.join('tests', 'servers', 'another_app', 'static'),
                        searched_locations)
          # FileSystemFinder searched locations
          self.assertIn(TEST_SETTINGS['STATICFILES_DIRS'][1][1], searched_locations)
          self.assertIn(TEST_SETTINGS['STATICFILES_DIRS'][0], searched_locations)
          # DefaultStorageFinder searched locations
          self.assertIn(os.path.join('staticfiles_tests', 'project', 'site_media', 'media'),
                        searched_locations)
  
  
  class TestConfiguration(StaticFilesTestCase):
      def test_location_empty(self):
          err = six.StringIO()
          for root in ['', None]:
              with override_settings(STATIC_ROOT=root):
                  with six.assertRaisesRegex(
                          self, ImproperlyConfigured,
                          'without having set the STATIC_ROOT setting to a filesystem path'):
                      call_command('collectstatic', interactive=False, verbosity=0, stderr=err)
  
      def test_local_storage_detection_helper(self):
          staticfiles_storage = storage.staticfiles_storage
          try:
              storage.staticfiles_storage._wrapped = empty
              with override_settings(STATICFILES_STORAGE='django.contrib.staticfiles.storage.StaticFilesStorage'):
                  command = collectstatic.Command()
                  self.assertTrue(command.is_local_storage())
  
              storage.staticfiles_storage._wrapped = empty
              with override_settings(STATICFILES_STORAGE='staticfiles_tests.storage.DummyStorage'):
                  command = collectstatic.Command()
                  self.assertFalse(command.is_local_storage())
  
              storage.staticfiles_storage = storage.FileSystemStorage()
              command = collectstatic.Command()
              self.assertTrue(command.is_local_storage())
  
              storage.staticfiles_storage = DummyStorage()
              command = collectstatic.Command()
              self.assertFalse(command.is_local_storage())
          finally:
              storage.staticfiles_storage = staticfiles_storage
  
  
  class TestCollection(CollectionTestCase, TestDefaults):
      """
      Test ``collectstatic`` management command.
      """
      def test_ignore(self):
          """
          Test that -i patterns are ignored.
          """
          self.assertFileNotFound('test/test.ignoreme')
  
      def test_common_ignore_patterns(self):
          """
          Common ignore patterns (*~, .*, CVS) are ignored.
          """
          self.assertFileNotFound('test/.hidden')
          self.assertFileNotFound('test/backup~')
          self.assertFileNotFound('test/CVS')
  
  
  class TestCollectionClear(CollectionTestCase):
      """
      Test the ``--clear`` option of the ``collectstatic`` management command.
      """
      def run_collectstatic(self, **kwargs):
          clear_filepath = os.path.join(settings.STATIC_ROOT, 'cleared.txt')
          with open(clear_filepath, 'w') as f:
              f.write('should be cleared')
          super(TestCollectionClear, self).run_collectstatic(clear=True)
  
      def test_cleared_not_found(self):
          self.assertFileNotFound('cleared.txt')
  
  
  class TestCollectionExcludeNoDefaultIgnore(CollectionTestCase, TestDefaults):
      """
      Test ``--exclude-dirs`` and ``--no-default-ignore`` options of the
      ``collectstatic`` management command.
      """
      def run_collectstatic(self):
          super(TestCollectionExcludeNoDefaultIgnore, self).run_collectstatic(
              use_default_ignore_patterns=False)
  
      def test_no_common_ignore_patterns(self):
          """
          With --no-default-ignore, common ignore patterns (*~, .*, CVS)
          are not ignored.
  
          """
          self.assertFileContains('test/.hidden', 'should be ignored')
          self.assertFileContains('test/backup~', 'should be ignored')
          self.assertFileContains('test/CVS', 'should be ignored')
  
  
  class TestNoFilesCreated(object):
  
      def test_no_files_created(self):
          """
          Make sure no files were create in the destination directory.
          """
          self.assertEqual(os.listdir(settings.STATIC_ROOT), [])
  
  
  class TestCollectionDryRun(CollectionTestCase, TestNoFilesCreated):
      """
      Test ``--dry-run`` option for ``collectstatic`` management command.
      """
      def run_collectstatic(self):
          super(TestCollectionDryRun, self).run_collectstatic(dry_run=True)
  
  
  class TestCollectionFilesOverride(CollectionTestCase):
      """
      Test overriding duplicated files by ``collectstatic`` management command.
      Check for proper handling of apps order in installed apps even if file modification
      dates are in different order:
  
          'staticfiles_tests.apps.test',
          'staticfiles_tests.apps.no_label',
  
      """
      def setUp(self):
          self.orig_path = os.path.join(TEST_ROOT, 'apps', 'no_label', 'static', 'file2.txt')
          # get modification and access times for no_label/static/file2.txt
          self.orig_mtime = os.path.getmtime(self.orig_path)
          self.orig_atime = os.path.getatime(self.orig_path)
  
          # prepare duplicate of file2.txt from no_label app
          # this file will have modification time older than no_label/static/file2.txt
          # anyway it should be taken to STATIC_ROOT because 'test' app is before
          # 'no_label' app in installed apps
          self.testfile_path = os.path.join(TEST_ROOT, 'apps', 'test', 'static', 'file2.txt')
          with open(self.testfile_path, 'w+') as f:
              f.write('duplicate of file2.txt')
          os.utime(self.testfile_path, (self.orig_atime - 1, self.orig_mtime - 1))
          super(TestCollectionFilesOverride, self).setUp()
  
      def tearDown(self):
          if os.path.exists(self.testfile_path):
              os.unlink(self.testfile_path)
          # set back original modification time
          os.utime(self.orig_path, (self.orig_atime, self.orig_mtime))
          super(TestCollectionFilesOverride, self).tearDown()
  
      def test_ordering_override(self):
          """
          Test if collectstatic takes files in proper order
          """
          self.assertFileContains('file2.txt', 'duplicate of file2.txt')
  
          # run collectstatic again
          self.run_collectstatic()
  
          self.assertFileContains('file2.txt', 'duplicate of file2.txt')
  
          # and now change modification time of no_label/static/file2.txt
          # test app is first in installed apps so file2.txt should remain unmodified
          mtime = os.path.getmtime(self.testfile_path)
          atime = os.path.getatime(self.testfile_path)
          os.utime(self.orig_path, (mtime + 1, atime + 1))
  
          # run collectstatic again
          self.run_collectstatic()
  
          self.assertFileContains('file2.txt', 'duplicate of file2.txt')
  
  
  @override_settings(
      STATICFILES_STORAGE='staticfiles_tests.storage.DummyStorage',
  )
  class TestCollectionNonLocalStorage(CollectionTestCase, TestNoFilesCreated):
      """
      Tests for #15035
      """
      pass
  
  
  def hashed_file_path(test, path):
      fullpath = test.render_template(test.static_template_snippet(path))
      return fullpath.replace(settings.STATIC_URL, '')
  
  
  class TestHashedFiles(object):
      hashed_file_path = hashed_file_path
  
      def test_template_tag_return(self):
          """
          Test the CachedStaticFilesStorage backend.
          """
          self.assertStaticRaises(ValueError,
                                  "does/not/exist.png",
                                  "/static/does/not/exist.png")
          self.assertStaticRenders("test/file.txt",
                                   "/static/test/file.dad0999e4f8f.txt")
          self.assertStaticRenders("test/file.txt",
                                   "/static/test/file.dad0999e4f8f.txt", asvar=True)
          self.assertStaticRenders("cached/styles.css",
                                   "/static/cached/styles.93b1147e8552.css")
          self.assertStaticRenders("path/",
                                   "/static/path/")
          self.assertStaticRenders("path/?query",
                                   "/static/path/?query")
  
      def test_template_tag_simple_content(self):
          relpath = self.hashed_file_path("cached/styles.css")
          self.assertEqual(relpath, "cached/styles.93b1147e8552.css")
          with storage.staticfiles_storage.open(relpath) as relfile:
              content = relfile.read()
              self.assertNotIn(b"cached/other.css", content)
              self.assertIn(b"other.d41d8cd98f00.css", content)
  
      def test_path_ignored_completely(self):
          relpath = self.hashed_file_path("cached/css/ignored.css")
          self.assertEqual(relpath, "cached/css/ignored.6c77f2643390.css")
          with storage.staticfiles_storage.open(relpath) as relfile:
              content = relfile.read()
              self.assertIn(b'#foobar', content)
              self.assertIn(b'http:foobar', content)
              self.assertIn(b'https:foobar', content)
              self.assertIn(b'data:foobar', content)
              self.assertIn(b'//foobar', content)
  
      def test_path_with_querystring(self):
          relpath = self.hashed_file_path("cached/styles.css?spam=eggs")
          self.assertEqual(relpath,
                           "cached/styles.93b1147e8552.css?spam=eggs")
          with storage.staticfiles_storage.open(
                  "cached/styles.93b1147e8552.css") as relfile:
              content = relfile.read()
              self.assertNotIn(b"cached/other.css", content)
              self.assertIn(b"other.d41d8cd98f00.css", content)
  
      def test_path_with_fragment(self):
          relpath = self.hashed_file_path("cached/styles.css#eggs")
          self.assertEqual(relpath, "cached/styles.93b1147e8552.css#eggs")
          with storage.staticfiles_storage.open(
                  "cached/styles.93b1147e8552.css") as relfile:
              content = relfile.read()
              self.assertNotIn(b"cached/other.css", content)
              self.assertIn(b"other.d41d8cd98f00.css", content)
  
      def test_path_with_querystring_and_fragment(self):
          relpath = self.hashed_file_path("cached/css/fragments.css")
          self.assertEqual(relpath, "cached/css/fragments.75433540b096.css")
          with storage.staticfiles_storage.open(relpath) as relfile:
              content = relfile.read()
              self.assertIn(b'fonts/font.a4b0478549d0.eot?#iefix', content)
              self.assertIn(b'fonts/font.b8d603e42714.svg#webfontIyfZbseF', content)
              self.assertIn(b'data:font/woff;charset=utf-8;base64,d09GRgABAAAAADJoAA0AAAAAR2QAAQAAAAAAAAAAAAA', content)
              self.assertIn(b'#default#VML', content)
  
      def test_template_tag_absolute(self):
          relpath = self.hashed_file_path("cached/absolute.css")
          self.assertEqual(relpath, "cached/absolute.23f087ad823a.css")
          with storage.staticfiles_storage.open(relpath) as relfile:
              content = relfile.read()
              self.assertNotIn(b"/static/cached/styles.css", content)
              self.assertIn(b"/static/cached/styles.93b1147e8552.css", content)
              self.assertIn(b'/static/cached/img/relative.acae32e4532b.png', content)
  
      def test_template_tag_denorm(self):
          relpath = self.hashed_file_path("cached/denorm.css")
          self.assertEqual(relpath, "cached/denorm.c5bd139ad821.css")
          with storage.staticfiles_storage.open(relpath) as relfile:
              content = relfile.read()
              self.assertNotIn(b"..//cached///styles.css", content)
              self.assertIn(b"../cached/styles.93b1147e8552.css", content)
              self.assertNotIn(b"url(img/relative.png )", content)
              self.assertIn(b'url("img/relative.acae32e4532b.png', content)
  
      def test_template_tag_relative(self):
          relpath = self.hashed_file_path("cached/relative.css")
          self.assertEqual(relpath, "cached/relative.2217ea7273c2.css")
          with storage.staticfiles_storage.open(relpath) as relfile:
              content = relfile.read()
              self.assertNotIn(b"../cached/styles.css", content)
              self.assertNotIn(b'@import "styles.css"', content)
              self.assertNotIn(b'url(img/relative.png)', content)
              self.assertIn(b'url("img/relative.acae32e4532b.png")', content)
              self.assertIn(b"../cached/styles.93b1147e8552.css", content)
  
      def test_import_replacement(self):
          "See #18050"
          relpath = self.hashed_file_path("cached/import.css")
          self.assertEqual(relpath, "cached/import.2b1d40b0bbd4.css")
          with storage.staticfiles_storage.open(relpath) as relfile:
              self.assertIn(b"""import url("styles.93b1147e8552.css")""", relfile.read())
  
      def test_template_tag_deep_relative(self):
          relpath = self.hashed_file_path("cached/css/window.css")
          self.assertEqual(relpath, "cached/css/window.9db38d5169f3.css")
          with storage.staticfiles_storage.open(relpath) as relfile:
              content = relfile.read()
              self.assertNotIn(b'url(img/window.png)', content)
              self.assertIn(b'url("img/window.acae32e4532b.png")', content)
  
      def test_template_tag_url(self):
          relpath = self.hashed_file_path("cached/url.css")
          self.assertEqual(relpath, "cached/url.615e21601e4b.css")
          with storage.staticfiles_storage.open(relpath) as relfile:
              self.assertIn(b"https://", relfile.read())
  
      def test_post_processing(self):
          """Test that post_processing behaves correctly.
  
          Files that are alterable should always be post-processed; files that
          aren't should be skipped.
  
          collectstatic has already been called once in setUp() for this testcase,
          therefore we check by verifying behavior on a second run.
          """
          collectstatic_args = {
              'interactive': False,
              'verbosity': '0',
              'link': False,
              'clear': False,
              'dry_run': False,
              'post_process': True,
              'use_default_ignore_patterns': True,
              'ignore_patterns': ['*.ignoreme'],
          }
  
          collectstatic_cmd = CollectstaticCommand()
          collectstatic_cmd.set_options(**collectstatic_args)
          stats = collectstatic_cmd.collect()
          self.assertIn(os.path.join('cached', 'css', 'window.css'), stats['post_processed'])
          self.assertIn(os.path.join('cached', 'css', 'img', 'window.png'), stats['unmodified'])
          self.assertIn(os.path.join('test', 'nonascii.css'), stats['post_processed'])
  
      def test_css_import_case_insensitive(self):
          relpath = self.hashed_file_path("cached/styles_insensitive.css")
          self.assertEqual(relpath, "cached/styles_insensitive.2f0151cca872.css")
          with storage.staticfiles_storage.open(relpath) as relfile:
              content = relfile.read()
              self.assertNotIn(b"cached/other.css", content)
              self.assertIn(b"other.d41d8cd98f00.css", content)
  
      @override_settings(
          STATICFILES_DIRS=(os.path.join(TEST_ROOT, 'project', 'faulty'),),
          STATICFILES_FINDERS=('django.contrib.staticfiles.finders.FileSystemFinder',),
      )
      def test_post_processing_failure(self):
          """
          Test that post_processing indicates the origin of the error when it
          fails. Regression test for #18986.
          """
          finders.get_finder.cache_clear()
          err = six.StringIO()
          with self.assertRaises(Exception):
              call_command('collectstatic', interactive=False, verbosity=0, stderr=err)
          self.assertEqual("Post-processing 'faulty.css' failed!\n\n", err.getvalue())
  
  
  # we set DEBUG to False here since the template tag wouldn't work otherwise
  @override_settings(**dict(
      TEST_SETTINGS,
      STATICFILES_STORAGE='django.contrib.staticfiles.storage.CachedStaticFilesStorage',
      DEBUG=False,
  ))
  class TestCollectionCachedStorage(TestHashedFiles, BaseCollectionTestCase,
          BaseStaticFilesTestCase, TestCase):
      """
      Tests for the Cache busting storage
      """
      def test_cache_invalidation(self):
          name = "cached/styles.css"
          hashed_name = "cached/styles.93b1147e8552.css"
          # check if the cache is filled correctly as expected
          cache_key = storage.staticfiles_storage.hash_key(name)
          cached_name = storage.staticfiles_storage.hashed_files.get(cache_key)
          self.assertEqual(self.hashed_file_path(name), cached_name)
          # clearing the cache to make sure we re-set it correctly in the url method
          storage.staticfiles_storage.hashed_files.clear()
          cached_name = storage.staticfiles_storage.hashed_files.get(cache_key)
          self.assertEqual(cached_name, None)
          self.assertEqual(self.hashed_file_path(name), hashed_name)
          cached_name = storage.staticfiles_storage.hashed_files.get(cache_key)
          self.assertEqual(cached_name, hashed_name)
  
      def test_cache_key_memcache_validation(self):
          """
          Handle cache key creation correctly, see #17861.
          """
          name = "/some crazy/long filename/ with spaces Here and ?#%#$/other/stuff/some crazy/long filename/ with spaces Here and ?#%#$/other/stuff/some crazy/long filename/ with spaces Here and ?#%#$/other/stuff/some crazy/long filename/ with spaces Here and ?#%#$/other/stuff/some crazy/long filename/ with spaces Here and ?#%#$/other/stuff/some crazy/" + "\x16" + "\xb4"
          cache_key = storage.staticfiles_storage.hash_key(name)
          cache_validator = BaseCache({})
          cache_validator.validate_key(cache_key)
          self.assertEqual(cache_key, 'staticfiles:821ea71ef36f95b3922a77f7364670e7')
  
  
  # we set DEBUG to False here since the template tag wouldn't work otherwise
  @override_settings(**dict(
      TEST_SETTINGS,
      STATICFILES_STORAGE='django.contrib.staticfiles.storage.ManifestStaticFilesStorage',
      DEBUG=False,
  ))
  class TestCollectionManifestStorage(TestHashedFiles, BaseCollectionTestCase,
          BaseStaticFilesTestCase, TestCase):
      """
      Tests for the Cache busting storage
      """
      def test_manifest_exists(self):
          filename = storage.staticfiles_storage.manifest_name
          path = storage.staticfiles_storage.path(filename)
          self.assertTrue(os.path.exists(path))
  
      def test_loaded_cache(self):
          self.assertNotEqual(storage.staticfiles_storage.hashed_files, {})
          manifest_content = storage.staticfiles_storage.read_manifest()
          self.assertIn('"version": "%s"' %
                        storage.staticfiles_storage.manifest_version,
                        force_text(manifest_content))
  
      def test_parse_cache(self):
          hashed_files = storage.staticfiles_storage.hashed_files
          manifest = storage.staticfiles_storage.load_manifest()
          self.assertEqual(hashed_files, manifest)
  
  
  # we set DEBUG to False here since the template tag wouldn't work otherwise
  @override_settings(**dict(
      TEST_SETTINGS,
      STATICFILES_STORAGE='staticfiles_tests.storage.SimpleCachedStaticFilesStorage',
      DEBUG=False,
  ))
  class TestCollectionSimpleCachedStorage(BaseCollectionTestCase,
          BaseStaticFilesTestCase, TestCase):
      """
      Tests for the Cache busting storage
      """
      hashed_file_path = hashed_file_path
  
      def test_template_tag_return(self):
          """
          Test the CachedStaticFilesStorage backend.
          """
          self.assertStaticRaises(ValueError,
                                  "does/not/exist.png",
                                  "/static/does/not/exist.png")
          self.assertStaticRenders("test/file.txt",
                                   "/static/test/file.deploy12345.txt")
          self.assertStaticRenders("cached/styles.css",
                                   "/static/cached/styles.deploy12345.css")
          self.assertStaticRenders("path/",
                                   "/static/path/")
          self.assertStaticRenders("path/?query",
                                   "/static/path/?query")
  
      def test_template_tag_simple_content(self):
          relpath = self.hashed_file_path("cached/styles.css")
          self.assertEqual(relpath, "cached/styles.deploy12345.css")
          with storage.staticfiles_storage.open(relpath) as relfile:
              content = relfile.read()
              self.assertNotIn(b"cached/other.css", content)
              self.assertIn(b"other.deploy12345.css", content)
  
  
  @unittest.skipUnless(symlinks_supported(),
                       "Must be able to symlink to run this test.")
  class TestCollectionLinks(CollectionTestCase, TestDefaults):
      """
      Test ``--link`` option for ``collectstatic`` management command.
  
      Note that by inheriting ``TestDefaults`` we repeat all
      the standard file resolving tests here, to make sure using
      ``--link`` does not change the file-selection semantics.
      """
      def run_collectstatic(self):
          super(TestCollectionLinks, self).run_collectstatic(link=True)
  
      def test_links_created(self):
          """
          With ``--link``, symbolic links are created.
          """
          self.assertTrue(os.path.islink(os.path.join(settings.STATIC_ROOT, 'test.txt')))
  
      def test_broken_symlink(self):
          """
          Test broken symlink gets deleted.
          """
          path = os.path.join(settings.STATIC_ROOT, 'test.txt')
          os.unlink(path)
          self.run_collectstatic()
          self.assertTrue(os.path.islink(path))
  
  
  @override_settings(ROOT_URLCONF='staticfiles_tests.urls.default')
  class TestServeStatic(StaticFilesTestCase):
      """
      Test static asset serving view.
      """
  
      def _response(self, filepath):
          return self.client.get(
              posixpath.join(settings.STATIC_URL, filepath))
  
      def assertFileContains(self, filepath, text):
          self.assertContains(self._response(filepath), text)
  
      def assertFileNotFound(self, filepath):
          self.assertEqual(self._response(filepath).status_code, 404)
  
  
  class TestServeDisabled(TestServeStatic):
      """
      Test serving static files disabled when DEBUG is False.
      """
      def setUp(self):
          super(TestServeDisabled, self).setUp()
          settings.DEBUG = False
  
      def test_disabled_serving(self):
          self.assertFileNotFound('test.txt')
  
  
  class TestServeStaticWithDefaultURL(TestServeStatic, TestDefaults):
      """
      Test static asset serving view with manually configured URLconf.
      """
      pass
  
  
  @override_settings(ROOT_URLCONF='staticfiles_tests.urls.helper')
  class TestServeStaticWithURLHelper(TestServeStatic, TestDefaults):
      """
      Test static asset serving view with staticfiles_urlpatterns helper.
      """
  
  
  class TestServeAdminMedia(TestServeStatic):
      """
      Test serving media from django.contrib.admin.
      """
      def _response(self, filepath):
          return self.client.get(
              posixpath.join(settings.STATIC_URL, 'admin/', filepath))
  
      def test_serve_admin_media(self):
          self.assertFileContains('css/base.css', 'body')
  
  
  class FinderTestCase(object):
      """
      Base finder test mixin.
  
      On Windows, sometimes the case of the path we ask the finders for and the
      path(s) they find can differ. Compare them using os.path.normcase() to
      avoid false negatives.
      """
      def test_find_first(self):
          src, dst = self.find_first
          found = self.finder.find(src)
          self.assertEqual(os.path.normcase(found), os.path.normcase(dst))
  
      def test_find_all(self):
          src, dst = self.find_all
          found = self.finder.find(src, all=True)
          found = [os.path.normcase(f) for f in found]
          dst = [os.path.normcase(d) for d in dst]
          self.assertEqual(found, dst)
  
  
  class TestFileSystemFinder(StaticFilesTestCase, FinderTestCase):
      """
      Test FileSystemFinder.
      """
      def setUp(self):
          super(TestFileSystemFinder, self).setUp()
          self.finder = finders.FileSystemFinder()
          test_file_path = os.path.join(TEST_ROOT, 'project', 'documents', 'test', 'file.txt')
          self.find_first = (os.path.join('test', 'file.txt'), test_file_path)
          self.find_all = (os.path.join('test', 'file.txt'), [test_file_path])
  
  
  class TestAppDirectoriesFinder(StaticFilesTestCase, FinderTestCase):
      """
      Test AppDirectoriesFinder.
      """
      def setUp(self):
          super(TestAppDirectoriesFinder, self).setUp()
          self.finder = finders.AppDirectoriesFinder()
          test_file_path = os.path.join(TEST_ROOT, 'apps', 'test', 'static', 'test', 'file1.txt')
          self.find_first = (os.path.join('test', 'file1.txt'), test_file_path)
          self.find_all = (os.path.join('test', 'file1.txt'), [test_file_path])
  
  
  class TestDefaultStorageFinder(StaticFilesTestCase, FinderTestCase):
      """
      Test DefaultStorageFinder.
      """
      def setUp(self):
          super(TestDefaultStorageFinder, self).setUp()
          self.finder = finders.DefaultStorageFinder(
              storage=storage.StaticFilesStorage(location=settings.MEDIA_ROOT))
          test_file_path = os.path.join(settings.MEDIA_ROOT, 'media-file.txt')
          self.find_first = ('media-file.txt', test_file_path)
          self.find_all = ('media-file.txt', [test_file_path])
  
  
  @override_settings(STATICFILES_FINDERS=
                     ('django.contrib.staticfiles.finders.FileSystemFinder',),
                     STATICFILES_DIRS=[os.path.join(TEST_ROOT, 'project', 'documents')])
  class TestMiscFinder(TestCase):
      """
      A few misc finder tests.
      """
      def test_get_finder(self):
          self.assertIsInstance(finders.get_finder(
              'django.contrib.staticfiles.finders.FileSystemFinder'),
              finders.FileSystemFinder)
  
      def test_get_finder_bad_classname(self):
          self.assertRaises(ImportError, finders.get_finder,
                            'django.contrib.staticfiles.finders.FooBarFinder')
  
      def test_get_finder_bad_module(self):
          self.assertRaises(ImportError,
              finders.get_finder, 'foo.bar.FooBarFinder')
  
      def test_cache(self):
          finders.get_finder.cache_clear()
          for n in range(10):
              finders.get_finder(
                  'django.contrib.staticfiles.finders.FileSystemFinder')
          cache_info = finders.get_finder.cache_info()
          self.assertEqual(cache_info.hits, 9)
          self.assertEqual(cache_info.currsize, 1)
  
      def test_searched_locations(self):
          finders.find('spam')
          self.assertEqual(finders.searched_locations,
                           [os.path.join(TEST_ROOT, 'project', 'documents')])
  
      @override_settings(STATICFILES_DIRS='a string')
      def test_non_tuple_raises_exception(self):
          """
          We can't determine if STATICFILES_DIRS is set correctly just by
          looking at the type, but we can determine if it's definitely wrong.
          """
          self.assertRaises(ImproperlyConfigured, finders.FileSystemFinder)
  
      @override_settings(MEDIA_ROOT='')
      def test_location_empty(self):
          self.assertRaises(ImproperlyConfigured, finders.DefaultStorageFinder)
  
  
  class TestTemplateTag(StaticFilesTestCase):
  
      def test_template_tag(self):
          self.assertStaticRenders("does/not/exist.png", "/static/does/not/exist.png")
          self.assertStaticRenders("testfile.txt", "/static/testfile.txt")
  
  
  class CustomStaticFilesStorage(storage.StaticFilesStorage):
      """
      Used in TestStaticFilePermissions
      """
      def __init__(self, *args, **kwargs):
          kwargs['file_permissions_mode'] = 0o640
          kwargs['directory_permissions_mode'] = 0o740
          super(CustomStaticFilesStorage, self).__init__(*args, **kwargs)
  
  
  @unittest.skipIf(sys.platform.startswith('win'),
                   "Windows only partially supports chmod.")
  class TestStaticFilePermissions(BaseCollectionTestCase, StaticFilesTestCase):
  
      command_params = {'interactive': False,
                        'post_process': True,
                        'verbosity': '0',
                        'ignore_patterns': ['*.ignoreme'],
                        'use_default_ignore_patterns': True,
                        'clear': False,
                        'link': False,
                        'dry_run': False}
  
      def setUp(self):
          self.umask = 0o027
          self.old_umask = os.umask(self.umask)
          super(TestStaticFilePermissions, self).setUp()
  
      def tearDown(self):
          os.umask(self.old_umask)
          super(TestStaticFilePermissions, self).tearDown()
  
      # Don't run collectstatic command in this test class.
      def run_collectstatic(self, **kwargs):
          pass
  
      @override_settings(FILE_UPLOAD_PERMISSIONS=0o655,
                         FILE_UPLOAD_DIRECTORY_PERMISSIONS=0o765)
      def test_collect_static_files_permissions(self):
          collectstatic.Command().execute(**self.command_params)
          test_file = os.path.join(settings.STATIC_ROOT, "test.txt")
          test_dir = os.path.join(settings.STATIC_ROOT, "subdir")
          file_mode = os.stat(test_file)[0] & 0o777
          dir_mode = os.stat(test_dir)[0] & 0o777
          self.assertEqual(file_mode, 0o655)
          self.assertEqual(dir_mode, 0o765)
  
      @override_settings(FILE_UPLOAD_PERMISSIONS=None,
                         FILE_UPLOAD_DIRECTORY_PERMISSIONS=None)
      def test_collect_static_files_default_permissions(self):
          collectstatic.Command().execute(**self.command_params)
          test_file = os.path.join(settings.STATIC_ROOT, "test.txt")
          test_dir = os.path.join(settings.STATIC_ROOT, "subdir")
          file_mode = os.stat(test_file)[0] & 0o777
          dir_mode = os.stat(test_dir)[0] & 0o777
          self.assertEqual(file_mode, 0o666 & ~self.umask)
          self.assertEqual(dir_mode, 0o777 & ~self.umask)
  
      @override_settings(FILE_UPLOAD_PERMISSIONS=0o655,
                         FILE_UPLOAD_DIRECTORY_PERMISSIONS=0o765,
                         STATICFILES_STORAGE='staticfiles_tests.tests.CustomStaticFilesStorage')
      def test_collect_static_files_subclass_of_static_storage(self):
          collectstatic.Command().execute(**self.command_params)
          test_file = os.path.join(settings.STATIC_ROOT, "test.txt")
          test_dir = os.path.join(settings.STATIC_ROOT, "subdir")
          file_mode = os.stat(test_file)[0] & 0o777
          dir_mode = os.stat(test_dir)[0] & 0o777
          self.assertEqual(file_mode, 0o640)
          self.assertEqual(dir_mode, 0o740)
  