Relocate tests under /test (#1220)

test/helpers/tasks.ts

@@ -0,0 +1,33 @@
+import type { Task } from '../../src/types.js';
+
+/**
+ * Polls the provided getTask function until the task reaches the desired status or times out.
+ */
+export async function waitForTaskStatus(
+    getTask: (taskId: string) => Promise<Task | null | undefined>,
+    taskId: string,
+    desiredStatus: Task['status'],
+    {
+        intervalMs = 100,
+        timeoutMs = 10_000
+    }: {
+        intervalMs?: number;
+        timeoutMs?: number;
+    } = {}
+): Promise<Task> {
+    const start = Date.now();
+
+    // eslint-disable-next-line no-constant-condition
+    while (true) {
+        const task = await getTask(taskId);
+        if (task && task.status === desiredStatus) {
+            return task;
+        }
+
+        if (Date.now() - start > timeoutMs) {
+            throw new Error(`Timed out waiting for task ${taskId} to reach status ${desiredStatus}`);
+        }
+
+        await new Promise(resolve => setTimeout(resolve, intervalMs));
+    }
+}