* add `ListenerRefusalError` and `ListenerLeakError` which get logged when listener thresholds are exceeded.
The `stack` property of these errors will point towards the most frequent listener and how often it is used. If that's a high number there is a leak (same listener is added over and over again), if that's a low number there might be a conceptual flaw that an emitter is simply too prominent.
* rightfully don't use Error.captureStackTrace (v8/nodejs only)
- Som more tweaks to our own runner scripts to allow asking for the
generated coverage formats.
- Add actions alongside debug/run for executing coverage profiles
- Finish with displaying function coverage stats in Coverage view,
allow changing its sort order.
Fixes#200529Fixes#199380
- Allow coverage bar color thresholds to be configurable as the Java
folks requested.
- Update some of our scripts for integration into
the selfhost test runner.
- Initial parts of showing function coverage in the Test Coverage view.
(Still a work in progress, more tomorrow)
* snippet completions should also check with the completion model
this will allow to return "more" from the snippet completion item provider and rely on the completions model to do some filtering
* when debugging tests allow to use console.log
* fix https://github.com/microsoft/vscode/issues/191070
This adds an `assertHeap` function that can be used in tests. It
takes a heap snapshot, and asserts the state of classes in memory. This
works in Node and the Electron sandbox, but is a no-op in the browser.
Snapshots are process asynchronously and will report failures at the end
of the suite.
This method should be used sparingly (e.g. once at the end of a suite to
ensure nothing leaked before), as gathering a heap snapshot is fairly
slow, at least until V8 11.5.130 (https://v8.dev/blog/speeding-up-v8-heap-snapshots).
When used, the function will ensure the test has a minimum timeout
duration of 20s to avoid immediate failures.
It takes options containing a mapping of class names, and assertion functions
to run on the number of retained instances of that class. For example:
```ts
assertSnapshot({
classes: {
ShouldNeverLeak: count => assert.strictEqual(count, 0),
SomeSingleton: count => assert(count <= 1),
}
});
```
Closes https://github.com/microsoft/vscode/issues/191920
* eng: onboard to the extension test runner
Adds a `.vscode-test.js` file that uses the new extension test CLI to
run tests. Also, onboards the markdown-language-features as the first
built-in extension to use it.
With the `ms-vscode.extension-test-runner` extension installed, the
markdown-language-features' tests can be run and debugged easily in
the UI :)
* fixup
Johannes Rieken
Connor Peet
Robo
Daniel Imms
Benjamin Christopher Simmonds
Logan Ramos
Raymond Zhao
Martin Aeschlimann
Sandeep Somavarapu
Josh Soref
Henning Dieterichs