PyCharm provides integration with JavaScript unit testing frameworks thus providing rich coding assistance for writing JavaScript unit tests. To get framework-aware coding assistance, download the desired framework, configure it as a PyCharm JavaScript library, and define its visibility and scope.

The visibility status of a library determines whether it can be used in one project (Project) or can be re-used at the IDE level (Global).

The scope of a library defines the set of files and folders in which the library is considered as library, that is, it is write-protected, excluded from check for errors and refactoring, affects the completion list and highlighting.

For details, see Configuring JavaScript Libraries.

To create javascript unit tests, perform these general steps