Django testing model with ImageField Django testing model with ImageField django django

Django testing model with ImageField


python django testing mocking

For future users, I've solved the problem.You can mock an ImageField with a SimpleUploadedFile instance.

test.py

from django.core.files.uploadedfile import SimpleUploadedFilenewPhoto.image = SimpleUploadedFile(name='test_image.jpg', content=open(image_path, 'rb').read(), content_type='image/jpeg')

python django testing mocking

You can use a temporary file, using tempfile. So you don't need a real file to do your tests.

import tempfileimage = tempfile.NamedTemporaryFile(suffix=".jpg").name

If you prefer to do manual clean-up, use tempfile.mkstemp() instead.

python django testing mocking

Tell the mock library to create a mock object based on Django's File class

import mockfrom django.core.files import Filefile_mock = mock.MagicMock(spec=File, name='FileMock')

and then use in your tests 

newPhoto.image = file_mock

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