# CI / Testing {% embed url="" %} CI/Testing - Testing and Deployment {% endembed %} ## Summary * **Unit tests** are designed for specific module functionality. * **Integration tests** are designed for the whole system. * **Continuous integration** is an environment where tests are run every time a new code is pushed to the repository before the updated model is deployed. * A quick survey of continuous integration tools yields several options: CircleCI, Travis CI, Jenkins, and Buildkite. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://fall2019.fullstackdeeplearning.com/course-content/testing-and-deployment/ci-testing.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.