Extension Test Runner installs statistics
By Microsoft (224 listings) · VS Code Marketplace · Testing
Runs tests in VS Code extensions
Extension Test Runner has 292,529 recorded installs on VS Code Marketplace.
It ranks #1177 of 2,501 tracked VS Code Marketplace listings by installs.
It is rated 5.0 out of 5 from 2 ratings.
PluginStats has 4 daily observations since Oct 16, 2026; the latest is from Oct 19, 2026.
Rating: 5.00 / 5 from 2 ratings
About Extension Test Runner
VS Code Extension Test Runner
This is a VS Code extension for other extension authors, that runs tests as you develop extensions. It requires use of the new extension test API and configuration file. For more information, see our testing guide for extension authors.
Getting Started
Please follow the testing guide for extension authors to initially set up tests using the command line. Then, install this extension.
This extension automatically discovers and works with the .vscode-test.js/mjs/cjs files found in your workspace. It requires minimal to no extra configuration. It works by looking at test files in your JavaScript code. If you write tests in TypeScript, you will want to:
1. Modify your tsconfig.json and add "sourceMap": true 1. Add **/*.js.map to your .vscodeignore file to avoid bloating the published extension.
Configuration
• extension-test-runner.extractSettings: configures how tests get extracted. You can configure: • The extractWith mode, that specifies if tests are extracted via evaluation or syntax-tree parsing. Evaluation is likely to lead to better results, but may have side-effects. Defaults to evaluation. • The test and suite identifiers the process extracts. Defaults to ["it", "test"] and ["describe", "suite"] respectively, covering Mocha's common interfaces. • extension-test-runner.debugOptions: options, normally found in the launch.json, to pass when debugging the extension. See the docs for a complete list of options. • extension-test-runner.wrapper: a wrapper script to use when running VS Code outside of debug mode. When running tests, arguments will be passed to this script, and it should spawn the first argument as a child process.
A common use case for this is to set it to xvfb-run for use in remotes which lack a display to avoid a "missing display" error.
Contributing
This project welcomes contributions and suggestions. Most contributions require you to agree to a Contributor License Agreement (CLA) declaring that you have the right to, and actually do, grant us the rights to use your contribution. For details, visit https://cla.opensource.microsoft.com.
When you submit a pull request, a CLA bot will automatically determine whether you need to provide a CLA and decorate the PR appropriately (e.g., status check, comment). Simply follow the instructions provided by the bot. You will only need to do this once across all repos using our CLA.
This project has adopted the Microsoft Open Source Code of Conduct. For more information see the Code of Conduct FAQ or contact opencode@microsoft.com with any additional questions or comments.
Trademarks
This project may contain trademarks or logos for projects, products, or services. Authorized use of Microsoft trademarks or logos is subject to and must follow Microsoft's Trademark & Brand Guidelines. Use of Microsoft trademarks or logos in modified versions of this project must not cause confusion or imply Microsoft sponsorship. Any use of third-party trademarks or logos are subject to those third-party's policies.
Description from the VS Code Marketplace listing.
- cli
- test
- vscode
Charts
Images: 30d · 1y · all time · 1600×900 dark
Adoption over time
7/30/90-day growth
Ranking history
Ratings over time
Listing placement
Filled points are observed values; hollow points come from Internet Archive snapshots of the listing page. Dashed segments span periods with no observations — values between points are not interpolated.
Each band is one page of 20. Installs on a log scale. Placement is projected from installs, so it can differ from the marketplace's own sort order. Hover a dot to see the listing.
Recent observations
Full history (4)Similar VS Code Marketplace Testing plugins
All 20 Extension Test Runner alternativesData source
Install counts, average rating, and rating counts come from the public Visual Studio Marketplace gallery API. Installs are cumulative and exclude updates.
Listing: https://marketplace.visualstudio.com/items?itemName=ms-vscode.extension-test-runner. First seen Oct 16, 2026; last successful collection Oct 19, 2026. See the methodology.