def test_article_last_update(db):
"""
Model should auto update "last_update" value on each save.
"""
article = ArticleFactory(
slug="foo",
)
assert article.last_update is not None
# Save date for usage after change
last_update = article.last_update
# Trigger save for auto update
article.save()
assert article.last_update > last_update
def test_article_model_file_management(db):
"""
Article 'cover' and 'image' field file management should follow correct
behaviors:
* When object is deleted, its files should be delete from filesystem too;
* When changing file from an object, its previous files (if any) should be
deleted;
"""
ping = ArticleFactory(
cover=create_image_file(filename="machin.png"),
image=create_image_file(filename="ping_image.png"),
fill_categories=False,
)
pong = ArticleFactory(
cover=create_image_file(filename="machin.png"),
image=create_image_file(filename="pong_image.png"),
fill_categories=False,
)
# Memorize some data to use after deletion
ping_cover_path = ping.cover.path
ping_image_path = ping.image.path
pong_cover_path = pong.cover.path
pong_image_path = pong.image.path
# Delete object
ping.delete()
# Files are deleted along their object
assert os.path.exists(ping_cover_path) is False
assert os.path.exists(ping_image_path) is False
# Paranoiac mode: other existing similar filename (as uploaded) is conserved
# (since Django rename file with a unique hash if filename alread exist)
assert os.path.exists(pong_cover_path) is True
# Change object file to a new one
pong.cover = create_image_file(filename="new_cover.png")
pong.image = create_image_file(filename="new_image.png")
pong.save()
# During pre save signal, old file is removed from FS and new one is left
# untouched
assert os.path.exists(pong_cover_path) is False
assert os.path.exists(pong_image_path) is False
assert os.path.exists(pong.cover.path) is True
assert os.path.exists(pong.image.path) is True