`extensionHost` launch config should support `.vscode-test.js` files natively

[TylerLeonhardt]

The new .vscode-test.js format and test runner are awesome, but some folks still like to use the regular ol' extensionHost launch config to run & debug tests.

We should support this new way in the launch config as well so that we don't have to implement our own runner in order to do this.

[connor4312]

You should be able to reference a test config file using this format in your launch.json:

{
    "type": "extensionHost",
    "request": "launch",
    "name": "My extension tests",
    "testConfiguration": "${workspaceFolder}/.vscode-test.js",
},

The sample works: https://github.com/microsoft/vscode-extension-samples/tree/main/helloworld-test-cli-sample

[karthiknadig]

It does not seem to pick up:

Version: 1.87.0-insider (system setup) Commit: ee69e2887fbe532588f74ae86560e7fdc1e59550 Date: 2024-02-21T05:47:47.750Z Electron: 27.3.2 ElectronBuildId: 26836302 Chromium: 118.0.5993.159 Node.js: 18.17.1 V8: 11.8.172.18-electron.0 OS: Windows_NT x64 10.0.22621

[TylerLeonhardt]

Not sure if this is a verification found but the args in our mjs are not being applied:

part of mjs:

export default defineConfig({
    files: __dirname + '/dist/test-extension.js',
    version: 'insiders',
    launchArgs: [
        '--disable-extensions',
        '--user-data-dir=' + tempdir,
    ],
    mocha: {
        ui: 'tdd',
        color: true,
        forbidOnly: !!process.env.CI,
        timeout: 5000
    }
});

config:

        {
            "name": "Extension tests",
            "type": "extensionHost",
            "request": "launch",
            "testConfiguration": "${workspaceFolder}/.vscode-test.mjs",
            "sourceMaps": true,
            "smartStep": true,
            "internalConsoleOptions": "openOnSessionStart",
            "outFiles": [
                "${workspaceFolder}/dist/**/*.js",
                "!**/node_modules/**"
            ],
        },

Let me know if you need more details. This is a private repo FYI.

[TylerLeonhardt]

@karthiknadig you need the nightly js debug or wait til tomorrow's insiders