test: add service tests for DirectusClient, DirectusError, categories, files, listings, and notifications

tests/index.html

@@ -93,17 +93,25 @@
     </div>
 
     <script type="module">
-        import { renderResults } from './test-runner.js'
+        import { renderResults, runAsyncTests } from './test-runner.js'
 
         const container = document.getElementById('results')
 
         // Run all test files
         async function runTests() {
             try {
+                // Sync tests
                 await import('./helpers.test.js')
                 await import('./i18n.test.js')
                 await import('./router.test.js')
 
+                // Service tests (sync + async)
+                await import('./client.test.js')
+                await import('./services.test.js')
+
+                // Run queued async tests
+                await runAsyncTests()
+
                 // Clear loading message and render results
                 container.querySelector('.loading').remove()
                 renderResults(container)