Django testing model with ImageField
Solution 1:
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 SimpleUploadedFile
newPhoto.image = SimpleUploadedFile(name='test_image.jpg', content=open(image_path, 'rb').read(), content_type='image/jpeg')
Solution 2:
You can use a temporary file, using tempfile. So you don't need a real file to do your tests.
import tempfile
image = tempfile.NamedTemporaryFile(suffix=".jpg").name
If you prefer to do manual clean-up, use tempfile.mkstemp() instead.