How to get a mock image in django?

# 1. Import necessary modules
from django.core.files.uploadedfile import SimpleUploadedFile
from django.core.files import File
from django.core.files.storage import default_storage
from django.core.management import call_command
from django.test import TestCase
from PIL import Image
import tempfile
import os

# 2. Create a TestCase class for testing
class YourTestCase(TestCase):
    def setUp(self):
        # 3. Create a temporary directory for media files
        self.media_dir = tempfile.mkdtemp()
        self.media_root = default_storage.base_location
        default_storage.base_location = self.media_dir

        # 4. Generate a mock image file
        image = Image.new('RGB', (100, 100), 'white')
        image_path = os.path.join(self.media_dir, 'mock_image.jpg')
        image.save(image_path)

        # 5. Create a SimpleUploadedFile using the mock image file
        self.mock_image = SimpleUploadedFile(
            name='mock_image.jpg',
            content=open(image_path, 'rb').read(),
            content_type='image/jpeg'
        )

        # 6. Optionally, call the `collectstatic` management command
        call_command('collectstatic', interactive=False)

    def tearDown(self):
        # 7. Remove the temporary media directory
        default_storage.base_location = self.media_root
        shutil.rmtree(self.media_dir)

# 8. Use `self.mock_image` in your test methods to simulate an uploaded image