A Mocha test runner with code coverage support for VSCode Extensions. This replaces the standard test runner from vscode/lib/testrunner and adds in code coverage support.
In a standard VSCode extension project, replace the src/test/index.ts file with the contents of sample/index.ts installed as part of this node module. This will use the test runner with coverage.
To configure coverage settings, copy the samples/coverconfig.json beside the index.ts file and edit its contents. It defines where the expected src directory is, where to save coverage files, and more.
This code is originally from https://github.com/Microsoft/vscode-mssql. I have preserved the MIT license statement and Copyright from that project so things are still marked as Copyright Microsoft.