🔧 Use absolute path to launcher script, simplify CI to Node 22 only

- Use import.meta.url to resolve launcher path (works with local file: deps)
- Remove npx dependency which tried to fetch from npm
- Simplify CI to test only Node 22 (Playwright API is stable across versions)

Author: Robdel12

.github/workflows/ci.yml

@@ -503,17 +503,13 @@ jobs:
     needs: [lint, changes-ember]
     if: needs.changes-ember.outputs.ember == 'true'
 
-    strategy:
-      matrix:
-        node-version: [22, 24]
-
     steps:
     - uses: actions/checkout@v4
 
-    - name: Use Node.js ${{ matrix.node-version }}
+    - name: Use Node.js 22
       uses: actions/setup-node@v4
       with:
-        node-version: ${{ matrix.node-version }}
+        node-version: 22
 
     - name: Install CLI dependencies
       run: npm ci
@@ -559,7 +555,6 @@ jobs:
         CI: true
 
     - name: Run Ember E2E visual tests
-      if: matrix.node-version == 22
       working-directory: ./clients/ember
       run: |
         cd test-app

clients/ember/src/testem-config.js

@@ -8,7 +8,8 @@
  */
 
 import { existsSync, mkdirSync, writeFileSync } from 'node:fs';
-import { join } from 'node:path';
+import { dirname, join } from 'node:path';
+import { fileURLToPath } from 'node:url';
 
 /**
  * Browser name mappings from user-friendly names to Vizzly launchers
@@ -43,26 +44,38 @@ function remapBrowsers(browsers) {
   return browsers.map(browser => browserMappings[browser] || browser);
 }
 
+/**
+ * Get the path to the launcher script
+ * @returns {string} Absolute path to vizzly-testem-launcher.js
+ */
+function getLauncherPath() {
+  // This file is at src/testem-config.js, launcher is at bin/vizzly-testem-launcher.js
+  let currentDir = dirname(fileURLToPath(import.meta.url));
+  return join(currentDir, '..', 'bin', 'vizzly-testem-launcher.js');
+}
+
 /**
  * Create launcher definitions for Vizzly browsers
  * Testem automatically appends the test URL to the args array
  * @returns {Object} Launcher configuration object
  */
 function createLaunchers() {
+  let launcherPath = getLauncherPath();
+
   return {
     VizzlyChrome: {
-      exe: 'npx',
-      args: ['vizzly-testem-launcher', 'chromium'],
+      exe: 'node',
+      args: [launcherPath, 'chromium'],
       protocol: 'browser',
     },
     VizzlyFirefox: {
-      exe: 'npx',
-      args: ['vizzly-testem-launcher', 'firefox'],
+      exe: 'node',
+      args: [launcherPath, 'firefox'],
       protocol: 'browser',
     },
     VizzlyWebKit: {
-      exe: 'npx',
-      args: ['vizzly-testem-launcher', 'webkit'],
+      exe: 'node',
+      args: [launcherPath, 'webkit'],
       protocol: 'browser',
     },
   };

clients/ember/tests/unit/testem-config.test.js

@@ -105,35 +105,29 @@ describe('testem-config', () => {
       let result = configure({});
       let launcher = result.launchers.VizzlyChrome;
 
-      assert.strictEqual(launcher.exe, 'npx');
-      assert.deepStrictEqual(launcher.args, [
-        'vizzly-testem-launcher',
-        'chromium',
-      ]);
+      assert.strictEqual(launcher.exe, 'node');
+      assert.ok(launcher.args[0].endsWith('vizzly-testem-launcher.js'));
+      assert.strictEqual(launcher.args[1], 'chromium');
       assert.strictEqual(launcher.protocol, 'browser');
     });
 
     it('creates correct VizzlyFirefox launcher config', () => {
       let result = configure({});
       let launcher = result.launchers.VizzlyFirefox;
 
-      assert.strictEqual(launcher.exe, 'npx');
-      assert.deepStrictEqual(launcher.args, [
-        'vizzly-testem-launcher',
-        'firefox',
-      ]);
+      assert.strictEqual(launcher.exe, 'node');
+      assert.ok(launcher.args[0].endsWith('vizzly-testem-launcher.js'));
+      assert.strictEqual(launcher.args[1], 'firefox');
       assert.strictEqual(launcher.protocol, 'browser');
     });
 
     it('creates correct VizzlyWebKit launcher config', () => {
       let result = configure({});
       let launcher = result.launchers.VizzlyWebKit;
 
-      assert.strictEqual(launcher.exe, 'npx');
-      assert.deepStrictEqual(launcher.args, [
-        'vizzly-testem-launcher',
-        'webkit',
-      ]);
+      assert.strictEqual(launcher.exe, 'node');
+      assert.ok(launcher.args[0].endsWith('vizzly-testem-launcher.js'));
+      assert.strictEqual(launcher.args[1], 'webkit');
       assert.strictEqual(launcher.protocol, 'browser');
     });