Minimal plugin startup test

.github/workflows/test.yml

@@ -0,0 +1,33 @@
+name: Test
+
+on: [push, pull_request]
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+
+    strategy:
+      matrix:
+        # the Node.js versions to build on
+        node-version: [18.x, 20.x, 22.x]
+        homebridge-version: ['^1.8.0', '^2.0.0-beta.0']
+
+    steps:
+      - uses: actions/checkout@v3
+
+      - name: Use Node.js ${{ matrix.node-version }} 
+        uses: actions/setup-node@v3
+        with:
+          node-version: ${{ matrix.node-version }}
+
+      - name: Install dependencies
+        run: npm install
+
+      - name: Use homebridge ${{ matrix.homebridge-version }}
+        run: npm install homebridge@${{ matrix.homebridge-version }}
+
+      - name: Build the project
+        run: npm run build
+
+      - name: Tune the tests
+        run: npm run test

bin/test-startup.ts

@@ -0,0 +1,45 @@
+// Homebridge plugin for AEG RX 9 / Electrolux Pure i9 robot vacuum
+// Copyright © 2024 Alexander Thoukydides
+
+import { spawn } from 'child_process';
+import assert from 'node:assert';
+
+// Command to use to launch Homebridge
+const SPAWN_COMMAND = 'homebridge';
+const SPAWN_ARGS = '-D -I -P .. --strict-plugin-resolution'.split(' ');
+
+// Log messages indicating success
+const SUCCESS_OUTPUT_REGEX = /\[Homebridge AEG Robot Vacuum\] (Starting new authorisation|Using saved access token)/;
+
+// Length of time to wait for the message
+const TIMEOUT_MS = 15 * 1000; // (15 seconds)
+
+// Run the test
+void (async (): Promise<void> => {
+    // Attempt to launch Homebridge
+    const homebridge = spawn(SPAWN_COMMAND, SPAWN_ARGS, { stdio: 'pipe', timeout: TIMEOUT_MS });
+
+    // Log any error output
+    //homebridge.stderr.on('data', (data) => { console.error(`stderr: ${data.trim()}`); });
+
+    // Collect stdout and check for success message(s)
+    let output = '';
+    homebridge.stdout.setEncoding('utf8');
+    for await (const chunk of homebridge.stdout) {
+        assert(typeof chunk === 'string');
+        output += chunk.toString();
+        if (SUCCESS_OUTPUT_REGEX.test(output)) {
+            // Test completed successfully
+            homebridge.kill('SIGTERM');
+            console.log('Success');
+            return;
+        }
+    }
+
+    // Homebridge did not start successfully
+    switch (homebridge.exitCode) {
+    case null:  throw new Error('Unexpected stdout termination');
+    case 0:     throw new Error('Unexpected successful process termination');
+    default:    throw new Error(`Homebridge exited with code ${homebridge.exitCode}`);
+    }
+})();

package.json

@@ -85,7 +85,8 @@
         "checkers": "mkdir -p ./src/ti && ts-interface-builder -c -o ./src/ti ./src/*-types.ts && tsx bin/ts-interface-post.ts ./src/ti",
         "build": "rimraf ./dist && npm run checkers && tsc",
         "postversion": "git push && git push --tags",
-        "prepublishOnly": "npm run lint && npm run build"
+        "prepublishOnly": "npm run lint && npm run build",
+        "test": "tsx bin/test-startup.ts"
     },
     "optionalDependencies": {
         "fsevents": "^2.3.3"