testing.py 文件源码

def new_test_image():
    """
    Creates an automatically generated test image.
    In your testing `tearDown` method make sure to delete the test
    image with the helper function `delete_test_image`.
    The recommended way of using this helper function is as follows:
        object_1.image_property.save(*new_test_image())
    :return: Image name and image content file.
    """
    warnings.warn(DeprecationWarning(
        "new_test_image() is deprecated in favour of the get_sample_image() "
        "context manager."), stacklevel=2)
    image_name = 'test-{}.png'.format(uuid.uuid4())
    image = Image.new('RGBA', size=(50, 50), color=(256, 0, 0))
    ImageDraw.Draw(image)
    byte_io = BytesIO()
    image.save(byte_io, 'png')
    byte_io.seek(0)
    return image_name, ContentFile(byte_io.read(), image_name)