test(httpapi): add route exerciser

packages/opencode/test/server/httpapi-config.test.ts

@@ -1,12 +1,11 @@
 import { afterEach, describe, expect, test } from "bun:test"
 import path from "path"
 import { Flag } from "@opencode-ai/core/flag/flag"
-import { GlobalBus } from "@/bus/global"
-import { Instance } from "../../src/project/instance"
 import { Server } from "../../src/server/server"
 import * as Log from "@opencode-ai/core/util/log"
 import { resetDatabase } from "../fixture/db"
 import { disposeAllInstances, tmpdir } from "../fixture/fixture"
+import { waitGlobalBusEventPromise } from "./global-bus"
 
 void Log.init({ print: false })
 
@@ -18,20 +17,9 @@ function app() {
 }
 
 async function waitDisposed(directory: string) {
-  return await new Promise<void>((resolve, reject) => {
-    const timer = setTimeout(() => {
-      GlobalBus.off("event", onEvent)
-      reject(new Error("timed out waiting for instance disposal"))
-    }, 10_000)
-
-    function onEvent(event: { directory?: string; payload: { type?: string } }) {
-      if (event.payload.type !== "server.instance.disposed" || event.directory !== directory) return
-      clearTimeout(timer)
-      GlobalBus.off("event", onEvent)
-      resolve()
-    }
-
-    GlobalBus.on("event", onEvent)
+  await waitGlobalBusEventPromise({
+    message: "timed out waiting for instance disposal",
+    predicate: (event) => event.payload.type === "server.instance.disposed" && event.directory === directory,
   })
 }