mirror of
https://github.com/django/django.git
synced 2025-10-31 09:41:08 +00:00
d5a45d79fe
git-svn-id: http://code.djangoproject.com/svn/django/trunk@16975 bcc190cf-cafb-0310-a4f2-bffc1f526a37
117 lines
4.4 KiB
Python
117 lines
4.4 KiB
Python
from __future__ import with_statement, absolute_import
|
|
|
|
import shutil
|
|
import tempfile
|
|
|
|
from django.core.cache import cache
|
|
from django.core.files import File
|
|
from django.core.files.base import ContentFile
|
|
from django.core.files.uploadedfile import SimpleUploadedFile
|
|
from django.test import TestCase
|
|
|
|
from .models import Storage, temp_storage, temp_storage_location
|
|
|
|
|
|
class FileTests(TestCase):
|
|
def tearDown(self):
|
|
shutil.rmtree(temp_storage_location)
|
|
|
|
def test_files(self):
|
|
temp_storage.save('tests/default.txt', ContentFile('default content'))
|
|
# Attempting to access a FileField from the class raises a descriptive
|
|
# error
|
|
self.assertRaises(AttributeError, lambda: Storage.normal)
|
|
|
|
# An object without a file has limited functionality.
|
|
obj1 = Storage()
|
|
self.assertEqual(obj1.normal.name, "")
|
|
self.assertRaises(ValueError, lambda: obj1.normal.size)
|
|
|
|
# Saving a file enables full functionality.
|
|
obj1.normal.save("django_test.txt", ContentFile("content"))
|
|
self.assertEqual(obj1.normal.name, "tests/django_test.txt")
|
|
self.assertEqual(obj1.normal.size, 7)
|
|
self.assertEqual(obj1.normal.read(), "content")
|
|
obj1.normal.close()
|
|
|
|
# File objects can be assigned to FileField attributes, but shouldn't
|
|
# get committed until the model it's attached to is saved.
|
|
obj1.normal = SimpleUploadedFile("assignment.txt", "content")
|
|
dirs, files = temp_storage.listdir("tests")
|
|
self.assertEqual(dirs, [])
|
|
self.assertEqual(sorted(files), ["default.txt", "django_test.txt"])
|
|
|
|
obj1.save()
|
|
dirs, files = temp_storage.listdir("tests")
|
|
self.assertEqual(
|
|
sorted(files), ["assignment.txt", "default.txt", "django_test.txt"]
|
|
)
|
|
|
|
# Files can be read in a little at a time, if necessary.
|
|
obj1.normal.open()
|
|
self.assertEqual(obj1.normal.read(3), "con")
|
|
self.assertEqual(obj1.normal.read(), "tent")
|
|
self.assertEqual(list(obj1.normal.chunks(chunk_size=2)), ["co", "nt", "en", "t"])
|
|
obj1.normal.close()
|
|
|
|
# Save another file with the same name.
|
|
obj2 = Storage()
|
|
obj2.normal.save("django_test.txt", ContentFile("more content"))
|
|
self.assertEqual(obj2.normal.name, "tests/django_test_1.txt")
|
|
self.assertEqual(obj2.normal.size, 12)
|
|
|
|
# Push the objects into the cache to make sure they pickle properly
|
|
cache.set("obj1", obj1)
|
|
cache.set("obj2", obj2)
|
|
self.assertEqual(cache.get("obj2").normal.name, "tests/django_test_1.txt")
|
|
|
|
# Deleting an object does not delete the file it uses.
|
|
obj2.delete()
|
|
obj2.normal.save("django_test.txt", ContentFile("more content"))
|
|
self.assertEqual(obj2.normal.name, "tests/django_test_2.txt")
|
|
|
|
# Multiple files with the same name get _N appended to them.
|
|
objs = [Storage() for i in range(3)]
|
|
for o in objs:
|
|
o.normal.save("multiple_files.txt", ContentFile("Same Content"))
|
|
self.assertEqual(
|
|
[o.normal.name for o in objs],
|
|
["tests/multiple_files.txt", "tests/multiple_files_1.txt", "tests/multiple_files_2.txt"]
|
|
)
|
|
for o in objs:
|
|
o.delete()
|
|
|
|
# Default values allow an object to access a single file.
|
|
obj3 = Storage.objects.create()
|
|
self.assertEqual(obj3.default.name, "tests/default.txt")
|
|
self.assertEqual(obj3.default.read(), "default content")
|
|
obj3.default.close()
|
|
|
|
# But it shouldn't be deleted, even if there are no more objects using
|
|
# it.
|
|
obj3.delete()
|
|
obj3 = Storage()
|
|
self.assertEqual(obj3.default.read(), "default content")
|
|
obj3.default.close()
|
|
|
|
# Verify the fix for #5655, making sure the directory is only
|
|
# determined once.
|
|
obj4 = Storage()
|
|
obj4.random.save("random_file", ContentFile("random content"))
|
|
self.assertTrue(obj4.random.name.endswith("/random_file"))
|
|
|
|
# Clean up the temporary files and dir.
|
|
obj1.normal.delete()
|
|
obj2.normal.delete()
|
|
obj3.default.delete()
|
|
obj4.random.delete()
|
|
|
|
def test_context_manager(self):
|
|
orig_file = tempfile.TemporaryFile()
|
|
base_file = File(orig_file)
|
|
with base_file as f:
|
|
self.assertIs(base_file, f)
|
|
self.assertFalse(f.closed)
|
|
self.assertTrue(f.closed)
|
|
self.assertTrue(orig_file.closed)
|