old_id = hashlib.sha256(b'old').hexdigest()
new_id = 'sha256:'+hashlib.sha256(b'new').hexdigest()
for supported, img_id, expect_ok in [
old_id = hashlib.sha256(b'old').hexdigest()
new_id = 'sha256:'+hashlib.sha256(b'new').hexdigest()
for supported, img_id, expect_ok in [