Which solution will meet these requirements with the LEAST amount of configuration?
Write unit tests by using the AWS CDK assertions module. Create CloudFormation template instances by using the module’s Template class for the existing CloudFormation templates and the module’s Capture class for the CDK stacks.
Write unit tests by using the AWS CDK assertions module. Create CloudFormation template instances by using the module’s Template.fromString() method for the existing CloudFormation templates and the module’s Template.fromStack{} method for the CDK stacks.
Convert the CloudFormation templates into CDK stacks by using the AWS CDK CfnInciude construct. Write unit tests against the templates by using CloudFormation rule assertions.
Convert the CDK stacks into CloudFormation templates by using the AWS CDK CfnInclude construct. Write unit tests against the templates by using CloudFormation rule assertions.
Explanations:
The AWS CDK assertions module does not include aTemplateclass for creating CloudFormation template instances. TheCaptureclass is used to capture values in CDK assertions, but this approach is not optimal for the task of adding test coverage for both CDK and CloudFormation templates.
This option uses theTemplate.fromString()method for CloudFormation templates andTemplate.fromStack()for CDK stacks, which allows for proper assertions against both types of templates, meeting the requirement with minimal configuration.
TheCfnIncludeconstruct is used to import existing CloudFormation templates into CDK, but it does not directly support writing unit tests or assertions. Additionally, CloudFormation rule assertions are not directly applicable to the AWS CDK assertions module.
TheCfnIncludeconstruct is used to import CDK stacks as CloudFormation templates. However, writing unit tests with CloudFormation rule assertions is not supported directly in the context of CDK tests, and this approach would require additional configuration to make it work.
If I’m correct, the answer is:
Write unit tests by using the AWS CDK assertions module. Create CloudFormation template instances by using the module’s Template.fromString() method for the existing CloudFormation templates and the module’s Template.fromStack{} method for the CDK stacks.