Testing Event pattern in AWS lambda - python-2.7

Question

I am pretty new to AWS and trying to update VPC security group when an Event is triggered by ELB
my Event pattern is something like below
{
"userIdentity": {
"invokedBy": [
"elasticloadbalancing.amazonaws.com"
]
},
"eventSource": [
"ec2.amazonaws.com"
],
"eventName": [
"CreateNetworkInterface"
]
}
and sample event is
{
"eventVersion": "1.05",
"userIdentity": {
"type": "Root",
"principalId": "233000205727",
"arn": "arn:aws:iam::233000205727:root",
"accountId": "233000205727",
"userName": "jmfe",
"invokedBy": "elasticloadbalancing.amazonaws.com"
},
"eventTime": "2017-04-15T09:10:30Z",
"eventSource": "ec2.amazonaws.com",
"eventName": "CreateNetworkInterface",
"awsRegion": "us-east-1",
"sourceIPAddress": "elasticloadbalancing.amazonaws.com",
"userAgent": "elasticloadbalancing.amazonaws.com",
"requestParameters": {
"subnetId": "subnet-2dbdf874",
"description": "ELB app/prod-artifactory-b-01-alb/73090a08b6f70469",
"groupSet": {
"items": [
{
"groupId": "sg-3a3b9a47"
}
]
},
"privateIpAddressesSet": {}
},
"responseElements": {
"networkInterface": {
"networkInterfaceId": "eni-4ad99293",
"internalInterfaceId": "interface-4ad99293",
"subnetId": "subnet-2dbdf874",
"vpcId": "vpc-876a77e2",
"availabilityZone": "us-east-1d",
"description": "ELB app/prod-artifactory-b-01-alb/73090a08b6f70469",
"ownerId": "233000205727",
"requesterId": "210368014644",
"requesterManaged": true,
"status": "pending",
"macAddress": "0e:61:f3:36:52:da",
"privateIpAddress": "10.19.84.120",
"privateDnsName": "ip-10-19-84-120.ec2.internal",
"sourceDestCheck": true,
"groupSet": {
"items": [
{
"groupId": "sg-3a3b9a47",
"groupName": "prod-artifactory-b-artifactory-01_client_sg"
}
]
},
"attachableToInstanceBySet": {},
"associableWithElasticIpBySet": {},
"privateIpAddressesSet": {
"item": [
{
"privateIpAddress": "10.19.84.120",
"privateDnsName": "ip-10-19-84-120.ec2.internal",
"primary": true
}
]
},
"ipv6AddressesSet": {},
"tagSet": {}
}
},
"requestID": "064477de-13d2-4e9c-b579-b69a2e6c4882",
"eventID": "0928e0db-89c3-4b33-abd5-62020854599a",
"eventType": "AwsApiCall",
"recipientAccountId": "233000205727"
}
{
"userIdentity": {
"invokedBy": ["elasticloadbalancing.amazonaws.com"]
},
"eventSource": ["ec2.amazonaws.com"],
"eventName": ["CreateNetworkInterface"]
}
I have created a rule with the above event pattern and want to call an AWS lambda function , the code is in python 3.6 and its just a simple hello world
def lambda_handler(event, context):
# TODO implement
return 'Hello from Lambda test'
When ever I test the lambda function with example event (from AWS console) it always Shows 'Hello from Lambda test' , I think I am not able to test the event and event pattern matching , I have changes the event and event pattern with garbage values and still the result is always pass, question is how to test the event and event pattern and see if the event pattern is working correctly within the rule