TINY-14063: Await test compilation (#166)

* TINY-14037: Compile before reaching end-point

* TINY-14063: Changelog

Author: jscasca

CHANGELOG.md

@@ -4,6 +4,11 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## Unreleased
+
+### Fixed
+- `bedrock-auto` now awaits test compilation. #TINY-14037
+
 ## 16.1.1 - 2026-03-12
 
 ### Fixed

modules/server/src/main/ts/bedrock/server/RunnerRoutes.ts

@@ -87,6 +87,8 @@ export const generate = async (mode: string, projectdir: string, basedir: string
 
   const resourceRoutes = resourceRoots.map(({name, folder}) => Routes.routing('GET', `/project/${name}`, path.join(projectdir, folder)));
 
+  const compiledTests = mode === 'auto' ? Promise.resolve(await testGenerator.generate()) : testGenerator.generate();
+
   const routers = [
     ...nodeModuleRoutes,
     ...resourceRoutes,
@@ -104,7 +106,7 @@ export const generate = async (mode: string, projectdir: string, basedir: string
       Routes.nodeResolveFile('GET', '/agar-sw.js', projectdir, '@ephox/agar-sw', 'dist/agar-sw.js'),
 
       // test code
-      Routes.asyncJs('GET', '/compiled/tests.js', testGenerator.generate()),
+      Routes.asyncJs('GET', '/compiled/tests.js', compiledTests),
       Routes.routing('GET', '/compiled', path.join(projectdir, scratchdir, 'compiled')),
 
       // harness API