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https://github.com/Hopiu/django-imagekit.git
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00b4388245
This prevents extra IO. Different defaults are used for async backends since we can’t assume that `existence_required` resulted in existence synchronously.
83 lines
1.8 KiB
Python
83 lines
1.8 KiB
Python
from bs4 import BeautifulSoup
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import os
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from django.conf import settings
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from django.core.files import File
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from django.template import Context, Template
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from imagekit.cachefiles.backends import Simple, CacheFileState
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from imagekit.lib import Image, StringIO
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from nose.tools import assert_true, assert_false
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import pickle
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from tempfile import NamedTemporaryFile
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from .models import Photo
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def get_image_file():
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"""
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See also:
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http://en.wikipedia.org/wiki/Lenna
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http://sipi.usc.edu/database/database.php?volume=misc&image=12
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"""
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path = os.path.join(settings.MEDIA_ROOT, 'lenna.png')
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return open(path, 'r+b')
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def get_unique_image_file():
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file = NamedTemporaryFile()
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file.write(get_image_file().read())
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return file
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def create_image():
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return Image.open(get_image_file())
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def create_instance(model_class, image_name):
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instance = model_class()
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img = File(get_image_file())
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instance.original_image.save(image_name, img)
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instance.save()
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img.close()
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return instance
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def create_photo(name):
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return create_instance(Photo, name)
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def pickleback(obj):
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pickled = StringIO()
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pickle.dump(obj, pickled)
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pickled.seek(0)
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return pickle.load(pickled)
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def render_tag(ttag):
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img = get_image_file()
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template = Template('{%% load imagekit %%}%s' % ttag)
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context = Context({'img': img})
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return template.render(context)
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def get_html_attrs(ttag):
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return BeautifulSoup(render_tag(ttag)).img.attrs
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def assert_file_is_falsy(file):
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assert_false(bool(file), 'File is not falsy')
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def assert_file_is_truthy(file):
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assert_true(bool(file), 'File is not truthy')
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class DummyAsyncCacheFileBackend(Simple):
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"""
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A cache file backend meant to simulate async generation.
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"""
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is_async = True
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def generate(self, file, force=False):
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pass
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