# 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.


self.s3_client.create_bucket(Bucket=TEST_BUCKET_WITH_VERSIONING)
        self.s3_client.put_bucket_versioning(Bucket=TEST_BUCKET_WITH_VERSIONING,
                                             VersioningConfiguration={'Status': 'Enabled'})
        result = self.s3_client.get_bucket_versioning(Bucket=TEST_BUCKET_WITH_VERSIONING)
        self.assertEqual(result['Status'], 'Enabled')
    def test_upload_big_file(self):
        bucket_name = 'bucket-big-file-%s' % short_uid()
        key1 = 'test_key1'
        key2 = 'test_key1'
        self.s3_client.create_bucket(Bucket=bucket_name)
        body1 = '\x01' * 10000000
        rs = self.s3_client.put_object(Bucket=bucket_name, Key=key1, Body=body1)
        self.assertEqual(rs['ResponseMetadata']['HTTPStatusCode'], 200)
        body2 = 'a' * 10000000
        rs = self.s3_client.put_object(Bucket=bucket_name, Key=key2, Body=body2)
        self.assertEqual(rs['ResponseMetadata']['HTTPStatusCode'], 200)
        rs = self.s3_client.head_object(Bucket=bucket_name, Key=key1)
        self.assertEqual(rs['ContentLength'], len(body1))
        rs = self.s3_client.head_object(Bucket=bucket_name, Key=key2)
        self.assertEqual(rs['ContentLength'], len(body2))
        
        self._delete_bucket(bucket_name, [key1, key2])
    def test_s3_put_more_than_1000_items(self):