I am writing a test case in Python for DynamoDB using the moto library and I have the code as shown below:
import boto3
import pytest
from moto import mock_dynamodb2
from myapp import save_contact
@mock_dynamodb2
def test_contact_save_to_dynamo():
assert save_contact(
'[email protected]',
'John Appleseed'
) == 200
The test fails with the following error message:
E AssertionError: assert 'Requested resource not found' == 200
I have double checked the region and the table name and it exists in the console. When I run the code to put an item in my DynamoDB table, it successfully saves it to the table, like so:
import datetime
import boto3
from botocore.exceptions import ClientError
AWS_REGION = 'us-east-1'
DYNAMODB_TABLE = 'aprs_messages'
time_stamp = str(int(datetime.datetime.utcnow().timestamp()))
ddb_client = boto3.client('dynamodb',region_name=AWS_REGION)
def save_contact(email, name):
try:
response = ddb_client.put_item(
TableName=DYNAMODB_TABLE,
Item={
'message_time': {'N': time_stamp },
'email': {'S': email },
'name': {'S': name }
}
)
except ClientError as e:
return e.response['Error']['Message']
else:
return response['ResponseMetadata']['HTTPStatusCode']
x = save_contact(
'[email protected]',
'John Appleseed'
)
print(x)
When I run this code, I get a 200 response code and I can also see the entry in the DynamoDB table. What could be the issue here?
Package Version:
When using moto, you need to create the underlying resource before performing any actions on that resource. In your case, you'll need to do a create_table before doing the put_item from within your test function.