Test cases written in moto using Latest version of boto3 fails

[mickog]

Seeing this issue is not resolved #1793
I am using
boto = 2.49.0
boto3 = 1.14.57

with moto 1.3.16 I receive the following error

botocore.exceptions.ClientError: An error occurred (InvalidClientTokenId) when calling the Publish operation: No account found for the given parameters

../../.local/share/virtualenvs/grs-wcclaims-note-ingestion-service-enGYxXYk/lib/python3.8/site-packages/botocore/client.py:656: ClientError

with moto 1.3.10 there is no issues

    @mock_sns
    def test_publish_sns_message_success(self):
        sns_client_mockd = get_sns_client()
        sns_client_mockd.create_topic(Name=get_sns_topic_name())
        response = sns_client_mockd.list_topics()
        topic_arn = response["Topics"][0]["TopicArn"]

        os.environ["TOPIC_ARN"] = topic_arn

        edm_response = get_edm_response()
        output = publish_message_to_topic(edm_response)

def publish_message_to_topic(edm_response):
    message_to_publish = json.loads(edm_response)

    response = client.publish(
        TargetArn=os.environ["TOPIC_ARN"],
        Message=json.dumps({"default": message_to_publish["data"]}),
        MessageStructure="json",
    )

[samsonych]

I confirm that the @mock_dynamodb2 decorator doesn't work with moto v1.3.16 (boto-2.49.0, boto3-1.14.60, botocore-1.12.253).

[bblommers]

Hi @samsonych, are you getting the same error message?
This might fix your issue:
https://github.com/spulec/moto/blob/master/README.md#very-important----recommended-usage

[bblommers]

Going to close this now, as it should be fixed by following the above guidelines.

Let me know if you run into any other issues.