ci: Add integration tests

And update integration test to actually fail (exit with non-zero status code) when there is a problem

Author: domdomegg

.github/workflows/integration.yml

@@ -0,0 +1,29 @@
+name: Integration test
+
+on:
+  push:
+    branches: [main]
+  pull_request:
+    branches: [main]
+
+jobs:
+  test:
+    name: Test on ${{ matrix.os }}
+    runs-on: ${{ matrix.os }}
+    strategy:
+      matrix:
+        os: [ubuntu-latest, windows-latest, macos-latest]
+
+    steps:
+    - uses: actions/checkout@v4
+
+    - name: Setup Node.js
+      uses: actions/setup-node@v4
+      with:
+        node-version: lts/*
+
+    - name: Install dependencies
+      run: npm ci
+
+    - name: Run tests
+      run: npm test

example/index.ts

@@ -20,6 +20,7 @@ async function convert() {
 		})
 	} catch (exc) {
 		console.error(exc)
+		process.exit(1)
 	}
 }