Aws.config[:ec2] = { stub_responses: { describe_launch_templates: { launch_templates: [ { create_time: Time.parse('2018-01-16T04:32:57.000Z'), created_by: 'arn:aws:iam::123456789012:root', default_version_number: 1, latest_version_number: 2, launch_template_id: 'lt-01238c059e3466abc', launch_template_name: 'my-launch-template' } ] } } }