Exam AWS Certified DevOps Engineer - Professional DOP-C02 topic 1 question 273 discussion

Option A: <OnFailure phase> - This option involves configuring the build phase in CodeBuild to run tests before deployment. Setting the OnFailure phase property to ABORT ensures that if any test fails, the build process is stopped, and the deployment doesn't proceed. - This ensures that the build and deployment process only proceeds if the tests are successful, which is crucial for maintaining application integrity. Option D: <CDK assertions> - This option involves writing unit tests using the AWS CDK assertions module. The template.hasResourceProperties assertion checks if CloudFormation templates have resources with expected properties, ensuring the infrastructure's logical correctness. - This enforces unit testing by checking that the CloudFormation templates have the expected properties, ensuring the application’s infrastructure is as intended.

I'm not sure but A D seems right

A. This step is crucial because: It integrates the unit tests into the build phase of CodeBuild. By setting the OnFailure property to ABORT, it ensures that the pipeline stops if any tests fail, preventing deployment of potentially faulty infrastructure. If all tests pass, the deployment will proceed as normal. D. This step is important because: It utilizes the AWS CDK assertions module, which is specifically designed for testing CDK applications. The template.hasResourceProperties assertion allows you to verify that the resources defined in your CDK code have the expected properties. This type of test can catch issues in your infrastructure definition before deployment.