Is it possible to retrieve the contents of a test file using Jest?

As I continue to write tests for my library, I've noticed that they are turning into a comprehensive documentation guide on how to use the library effectively.

I'm curious if Jest offers an API that would enable me to extract the test content in order to create a static website from it.

The challenge lies in the fact that I am currently utilizing Typescript for my tests (with ts-jest). This makes the idea of writing tests separately in Markdown files and then importing them into the test body for testing purposes seem overly complex.

Is there a practical method to achieve this? Or will it inevitably lead to messiness regardless?

typescriptjestjs

Answer №1

To simplify the process in Node, one can replace placeholders such as 

<!-- include ./path/to/javascript -->
with file contents in a Markdown file:

const readme = fs.readFileSync('./README.md', 'utf8')
.replace(/<!-- include (.+?) -->/g, (_, filepath) => fs.readFileSync(filepath, 'utf8'));

fs.writeFileSync('./README.md', readme, 'utf8');

There are external libraries like includeme that offer this functionality.

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