text: from __future__ import unicode_literals
  
  import codecs
  import os
  import shutil
  import tempfile
  import unittest
  
  from admin_scripts.tests import AdminScriptTestCase
  
  from django.conf import settings
  from django.contrib.staticfiles import storage
  from django.contrib.staticfiles.management.commands import collectstatic
  from django.core.exceptions import ImproperlyConfigured
  from django.core.management import call_command
  from django.test import override_settings
  from django.test.utils import extend_sys_path
  from django.utils import six
  from django.utils._os import symlinks_supported
  from django.utils.encoding import force_text
  from django.utils.functional import empty
  
  from .cases import CollectionTestCase, StaticFilesTestCase, TestDefaults
  from .settings import TEST_ROOT, TEST_SETTINGS
  from .storage import DummyStorage
  
  
  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 TestFindStatic(TestDefaults, CollectionTestCase):
      """
      Test ``findstatic`` management command.
      """
      def _get_file(self, filepath):
          path = call_command('findstatic', filepath, all=False, verbosity=0, stdout=six.StringIO())
          with codecs.open(force_text(path), "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.
          """
          result = call_command('findstatic', 'test/file.txt', verbosity=1, stdout=six.StringIO())
          lines = [l.strip() for l in result.split('\n')]
          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.
          """
          result = call_command('findstatic', 'test/file.txt', verbosity=0, stdout=six.StringIO())
          lines = [l.strip() for l in result.split('\n')]
          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.
          """
          result = call_command('findstatic', 'test/file.txt', verbosity=2, stdout=six.StringIO())
          lines = [l.strip() for l in result.split('\n')]
          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(force_text(x) for x in 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)
          # 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):
          msg = 'without having set the STATIC_ROOT setting to a filesystem path'
          err = six.StringIO()
          for root in ['', None]:
              with override_settings(STATIC_ROOT=root):
                  with self.assertRaisesMessage(ImproperlyConfigured, msg):
                      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 self.settings(STATICFILES_STORAGE='django.contrib.staticfiles.storage.StaticFilesStorage'):
                  command = collectstatic.Command()
                  self.assertTrue(command.is_local_storage())
  
              storage.staticfiles_storage._wrapped = empty
              with self.settings(STATICFILES_STORAGE='staticfiles_tests.storage.DummyStorage'):
                  command = collectstatic.Command()
                  self.assertFalse(command.is_local_storage())
  
              collectstatic.staticfiles_storage = storage.FileSystemStorage()
              command = collectstatic.Command()
              self.assertTrue(command.is_local_storage())
  
              collectstatic.staticfiles_storage = DummyStorage()
              command = collectstatic.Command()
              self.assertFalse(command.is_local_storage())
          finally:
              staticfiles_storage._wrapped = empty
              collectstatic.staticfiles_storage = staticfiles_storage
              storage.staticfiles_storage = staticfiles_storage
  
  
  class TestCollectionHelpSubcommand(AdminScriptTestCase):
      @override_settings(STATIC_ROOT=None)
      def test_missing_settings_dont_prevent_help(self):
          """
          Even if the STATIC_ROOT setting is not set, one can still call the
          `manage.py help collectstatic` command.
          """
          self.write_settings('settings.py', apps=['django.contrib.staticfiles'])
          out, err = self.run_manage(['help', 'collectstatic'])
          self.assertNoOutput(err)
  
  
  class TestCollection(TestDefaults, CollectionTestCase):
      """
      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')
  
      def test_dir_not_exists(self, **kwargs):
          shutil.rmtree(six.text_type(settings.STATIC_ROOT))
          super(TestCollectionClear, self).run_collectstatic(clear=True)
  
      @override_settings(STATICFILES_STORAGE='staticfiles_tests.storage.PathNotImplementedStorage')
      def test_handle_path_notimplemented(self):
          self.run_collectstatic()
          self.assertFileNotFound('cleared.txt')
  
  
  class TestCollectionExcludeNoDefaultIgnore(TestDefaults, CollectionTestCase):
      """
      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')
  
  
  @override_settings(INSTALLED_APPS=[
      'staticfiles_tests.apps.staticfiles_config.IgnorePatternsAppConfig',
      'staticfiles_tests.apps.test',
  ])
  class TestCollectionCustomIgnorePatterns(CollectionTestCase):
      def test_custom_ignore_patterns(self):
          """
          A custom ignore_patterns list, ['*.css'] in this case, can be specified
          in an AppConfig definition.
          """
          self.assertFileNotFound('test/nonascii.css')
          self.assertFileContains('test/.hidden', 'should be ignored')
  
  
  class TestCollectionDryRun(TestNoFilesCreated, CollectionTestCase):
      """
      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_test_app',
          'staticfiles_tests.apps.no_label',
      """
      def setUp(self):
          self.temp_dir = tempfile.mkdtemp()
          self.addCleanup(shutil.rmtree, self.temp_dir)
  
          # get modification and access times for no_label/static/file2.txt
          self.orig_path = os.path.join(TEST_ROOT, 'apps', '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 a temporary app
          # this file will have modification time older than no_label/static/file2.txt
          # anyway it should be taken to STATIC_ROOT because the temporary app is before
          # 'no_label' app in installed apps
          self.temp_app_path = os.path.join(self.temp_dir, 'staticfiles_test_app')
          self.testfile_path = os.path.join(self.temp_app_path, 'static', 'file2.txt')
  
          os.makedirs(self.temp_app_path)
          with open(os.path.join(self.temp_app_path, '__init__.py'), 'w+'):
              pass
  
          os.makedirs(os.path.dirname(self.testfile_path))
          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))
  
          self.settings_with_test_app = self.modify_settings(
              INSTALLED_APPS={'prepend': 'staticfiles_test_app'})
          with extend_sys_path(self.temp_dir):
              self.settings_with_test_app.enable()
  
          super(TestCollectionFilesOverride, self).setUp()
  
      def tearDown(self):
          super(TestCollectionFilesOverride, self).tearDown()
          self.settings_with_test_app.disable()
  
      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')
  
  
  # The collectstatic test suite already has conflicting files since both
  # project/test/file.txt and apps/test/static/test/file.txt are collected. To
  # properly test for the warning not happening unless we tell it to explicitly,
  # we remove the project directory and will add back a conflicting file later.
  @override_settings(STATICFILES_DIRS=[])
  class TestCollectionOverwriteWarning(CollectionTestCase):
      """
      Test warning in ``collectstatic`` output when a file is skipped because a
      previous file was already written to the same path.
      """
      # If this string is in the collectstatic output, it means the warning we're
      # looking for was emitted.
      warning_string = 'Found another file'
  
      def _collectstatic_output(self, **kwargs):
          """
          Run collectstatic, and capture and return the output. We want to run
          the command at highest verbosity, which is why we can't
          just call e.g. BaseCollectionTestCase.run_collectstatic()
          """
          out = six.StringIO()
          call_command('collectstatic', interactive=False, verbosity=3, stdout=out, **kwargs)
          return force_text(out.getvalue())
  
      def test_no_warning(self):
          """
          There isn't a warning if there isn't a duplicate destination.
          """
          output = self._collectstatic_output(clear=True)
          self.assertNotIn(self.warning_string, output)
  
      def test_warning(self):
          """
          There is a warning when there are duplicate destinations.
          """
          static_dir = tempfile.mkdtemp()
          self.addCleanup(shutil.rmtree, static_dir)
  
          duplicate = os.path.join(static_dir, 'test', 'file.txt')
          os.mkdir(os.path.dirname(duplicate))
          with open(duplicate, 'w+') as f:
              f.write('duplicate of file.txt')
  
          with self.settings(STATICFILES_DIRS=[static_dir]):
              output = self._collectstatic_output(clear=True)
          self.assertIn(self.warning_string, output)
  
          os.remove(duplicate)
  
          # Make sure the warning went away again.
          with self.settings(STATICFILES_DIRS=[static_dir]):
              output = self._collectstatic_output(clear=True)
          self.assertNotIn(self.warning_string, output)
  
  
  @override_settings(STATICFILES_STORAGE='staticfiles_tests.storage.DummyStorage')
  class TestCollectionNonLocalStorage(TestNoFilesCreated, CollectionTestCase):
      """
      Tests for #15035
      """
      pass
  
  
  @unittest.skipUnless(symlinks_supported(), "Must be able to symlink to run this test.")
  class TestCollectionLinks(TestDefaults, CollectionTestCase):
      """
      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, clear=False):
          super(TestCollectionLinks, self).run_collectstatic(link=True, clear=clear)
  
      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))
  
      def test_clear_broken_symlink(self):
          """
          With ``--clear``, broken symbolic links are deleted.
          """
          nonexistent_file_path = os.path.join(settings.STATIC_ROOT, 'nonexistent.txt')
          broken_symlink_path = os.path.join(settings.STATIC_ROOT, 'symlink.txt')
          os.symlink(nonexistent_file_path, broken_symlink_path)
          self.run_collectstatic(clear=True)
          self.assertFalse(os.path.lexists(broken_symlink_path))
  