A Comprehensive Guide to Exporting Coverage Reports for Visual Studio Code Extensions

While searching for tutorials on creating vscode extensions, I came across various resources like:

https://code.visualstudio.com/docs/extensions/testing-extensions

There are plenty of tutorials on coverage exports, each suggesting different methods. However, I haven't found good examples that align with the guidance provided in vscode documentation for working with extensions (which require the extensionHost instead of nodejs).

All my tests are written in mocha, which is included in vscode as recommended by their documentation.

I tried experimenting on my own, but I've hit a roadblock. Does anyone have any hints or suggestions on how I can proceed and make progress with my project again?

unit-testingtypescriptvisual-studio-codecode-coveragevscode-extensions

Answer №1

The solution to my original question can be found in the comments. To summarize the steps that were taken, including those that were not essential but proved convenient:

  • Installed istanbul, istanbul-coveralls, gulp, gulp-json-editor, and coveralls as DEV dependencies
  • Utilized the MS supplied istanbul test runner for vscode extension testing in my tests
  • Switched the test runner to istanbul instead of mocha
  • Configured the coverconfig.json to determine coverage specifics
  • Ignored coverage files in gitignore and vscode settings
  • Added tasks to trigger testing from the VS Code UI
  • Integrated a plugin to display coverage in the editor
  • Configured gulp to clean old coverage results
  • Created npm scripts for tests and coverage
  • Adjusted Travis steps to run coverage tests and publish results to Coveralls

Travis now handles testing on each commit and Coveralls provides a quick overview of test coverage. Gulp can also be used for local testing with immediate feedback on test coverage.

References similar to this setup can be found at:

https://github.com/Microsoft/vscode-mssql

https://github.com/kenhowardpdx/vscode-gist/pull/10

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