test.py

#!/usr/bin/env python3.7

import boto3
import botoinator
from moto import mock_s3, mock_sqs
import time
import inspect
def myDecorator(value1, value2, value3):
  def test_decorator(func):
    func.testValue = (value1, value2, value3)
    return func
  return test_decorator

@mock_s3
def testRegisterClient():
  s = boto3.session.Session()
  s.register_client_decorator('s3', 'create_bucket', myDecorator(time.time(), "string", True))
  s.register_client_decorator('s3', 'get_bucket_acl', myDecorator(time.time(), "string", True))
  client = s.client('s3')
  bucket = client.create_bucket
  assert isinstance(bucket.testValue[0], float) == 1 and bucket.testValue[1] == "string" and bucket.testValue[2] == True and isinstance(bucket.testValue, tuple)

@mock_sqs
def testRegisterResource():
  s = boto3.session.Session()
  s.register_resource_decorator('sqs', 'Queue', 'delete', myDecorator(time.time(), "string", True))
  sqs = s.resource('sqs', region_name='us-east-1')
  q = sqs.create_queue(QueueName='foo')
  obj = sqs.Queue('foo').delete
  assert isinstance(obj.testValue[0], float) == 1 and obj.testValue[1] == "string" and obj.testValue[2] == True and isinstance(obj.testValue, tuple)

"""
service_name -- the boto3 name of the service to apply the decorator to.
resource_name -- the boto3 name of the resource of the service to apply the decorator to.
method_names -- one or more method names of the resource to apply the decorator to. Single names can be a string.
decorator -- the decorator function. Must be a function that takes a function and returns a function. The returned function must take (*args, **kwargs) as arguments
"""
testRegisterClient()
testRegisterResource()