test: actually fix race condition

packages/core/src/index.js

@@ -17,7 +17,14 @@ module.exports = {
       if (path !== join(FLECKS_CORE_ROOT, 'build', 'flecks.yml')) {
         return;
       }
-      Object.entries(flecks.constructor.dealiasedConfig(config))
+      const dealiasedConfig = flecks.constructor.dealiasedConfig(config);
+      if (
+        JSON.stringify(Object.keys(flecks.originalConfig).sort())
+        !== JSON.stringify(Object.keys(dealiasedConfig).sort())
+      ) {
+        throw new Error('build manifest keys changed!');
+      }
+      Object.entries(dealiasedConfig)
         .forEach(([fleck, value]) => {
           if (JSON.stringify(flecks.originalConfig[fleck]) !== JSON.stringify(value)) {
             const fleckList = flecks.flecksImplementing('@flecks/core.reload');

packages/server/test/server/config-fail.js

@@ -8,7 +8,6 @@ import {withServer} from './build/build';
 it('allows updates to fail', withServer(async ({server, socket}) => {
   expect((await socket.send({type: 'config.get', payload: 'comm.foo'})).payload)
     .to.equal('bar');
-  const hmr = socket.waitForAction('hmr');
   await writeFile(
     join(server.path, 'build', 'flecks.yml'),
     `
@@ -18,7 +17,7 @@ it('allows updates to fail', withServer(async ({server, socket}) => {
       'comm:./comm': {foo: 'baz'}
     `,
   );
-  await hmr;
+  await socket.waitForAction('hmr');
   expect((await socket.send({type: 'config.get', payload: 'comm.foo'})).payload)
     .to.equal('baz');
   let restarted;

packages/server/test/server/template/comm/src/server.js

@@ -1,14 +1,19 @@
+import {Flecks} from '@flecks/core';
+
 export const hooks = {
   '@flecks/core.reload': (fleck, config) => {
     if ('comm' === fleck && 'fail' === config.foo) {
       throw new Error();
     }
   },
-  '@flecks/core.hmr': async (path, M, flecks) => {
-    const {socket} = flecks.server;
-    socket.write(JSON.stringify({
-      type: 'hmr',
-      payload: path,
-    }));
-  },
+  '@flecks/core.hmr': Flecks.priority(
+    async (path, M, flecks) => {
+      const {socket} = flecks.server;
+      socket.write(JSON.stringify({
+        type: 'hmr',
+        payload: path,
+      }));
+    },
+    {after: '@flecks/core'},
+  ),
 };