test: extension-host activation smoke (@vscode/test-cli)

.github/workflows/ci.yml

@@ -17,5 +17,13 @@ jobs:
       - run: npm ci
       - run: npm run check-types
       - run: npm test
+      # Extension-host smoke in a real VS Code (headless via Xvfb).
+      - run: xvfb-run -a npm run test:host
       - run: npm run compile
       - run: npx @vscode/vsce package -o /tmp/agentage.vsix
+      # Hand the packaged .vsix to the e2e repo's `vscode` integration project.
+      - uses: actions/upload-artifact@v4
+        with:
+          name: agentage-vsix
+          path: /tmp/agentage.vsix
+          if-no-files-found: error

.vscode-test.mjs

@@ -0,0 +1,9 @@
+import { defineConfig } from '@vscode/test-cli';
+
+// Runs the host smoke (test-host/**) inside a real downloaded VS Code, loading the
+// built extension from ./dist (run `npm run compile` first; `test:host` does).
+export default defineConfig({
+  files: 'test-host/**/*.test.js',
+  version: 'stable',
+  mocha: { ui: 'tdd', timeout: 20000 },
+});

.vscodeignore

@@ -1,6 +1,9 @@
 .vscode/**
+.vscode-test/**
+.vscode-test.mjs
 src/**
 test/**
+test-host/**
 node_modules/**
 esbuild.js
 tsconfig.json