mocha:tldr:fa7fa

mocha: Run tests that match a specific grep pattern.

mocha

$ mocha --grep ${regular_expression}

try on your machine

The command is using the mocha test framework and the "--grep" flag to filter and run only specific tests that match a given regular expression.

Here's a breakdown of the command:

"mocha": Refers to the mocha test framework, used to run JavaScript tests. It is a popular choice for unit testing and is often integrated with other tools like Chai or Sinon.
"--grep": This flag is used to specify a regular expression pattern that will be used to match and execute specific test(s). Only the tests matching the provided regular expression will be run while others will be skipped.
"${regular_expression}": This is a placeholder for the actual regular expression you want to use. You would replace "${regular_expression}" with your own regular expression pattern without the quotes. The regular expression should be written in JavaScript-compatible syntax and can be as simple or complex as needed.

By employing the "--grep" option with a regular expression, you can selectively run specific tests that match a certain criteria, such as naming patterns, labels, or string fragments, among others.

This explanation was created by an AI. In most cases those are correct. But please always be careful and never run a command you are not sure if it is safe.

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