# Type of request: This is a ...
[ ] bug report
[x] feature request

# Detailed description
As a Developer,
I want to be able to simulate BadDigest and InvalidDigest errors,
So that I can test the error handling logic

## Expected behavior
https://docs.aws.amazon.com/AmazonS3/latest/API/ErrorResponses.html
BadDigest: The Content-MD5 you specified did not match what we received.
InvalidDigest: The Content-MD5 you specified is not valid.

## Actual behavior
localstack returns InvalidDigest when MD5 does not match payload.


bucket_name = 'test-bucket-%s' % short_uid()
        self.s3_client.create_bucket(Bucket=bucket_name)
        
        src_key = 'src'
        self.s3_client.put_object(Bucket=bucket_name, Key=src_key, Body='something')
        
        dest_key = 'dest'
        response = self.s3_client.copy_object(Bucket=bucket_name, CopySource={'Bucket': bucket_name, 'Key': src_key},
                                              Key=dest_key)
        self.assertEqual(response['ResponseMetadata']['HTTPStatusCode'], 200)
        
        dest_key2 = 'dest'
        url = self.s3_client.generate_presigned_url(
            'copy_object', Params={'Bucket': bucket_name, 'CopySource': {'Bucket': bucket_name, 'Key': src_key},
                                   'Key': dest_key2}
        )
        
        request_response = requests.put(url, verify=False, headers={'Content-MD5': 'ignored_md5'})
        self.assertEqual(request_response.status_code, 200)
        
        self._delete_bucket(bucket_name, [src_key, dest_key, dest_key2])
    def test_s3_invalid_content_md5(self):