Add self-stopping CI watch tasks

runners/agent-runner/test/watch-ci.test.ts

@@ -0,0 +1,40 @@
+import { describe, expect, it } from 'vitest';
+
+import {
+  buildCiWatchPrompt,
+  normalizeWatchCiIntervalSeconds,
+} from '../src/watch-ci.js';
+
+describe('watch-ci helpers', () => {
+  it('builds a self-cancelling CI watch prompt', () => {
+    const prompt = buildCiWatchPrompt({
+      taskId: 'task-123',
+      target: 'PR #42 checks',
+      checkInstructions: 'Use gh pr checks 42 and summarize only terminal results.',
+    });
+
+    expect(prompt).toContain('PR #42 checks');
+    expect(prompt).toContain('task-123');
+    expect(prompt).toContain('cancel_task');
+    expect(prompt).toContain('send_message');
+    expect(prompt).toContain('gh pr checks 42');
+  });
+
+  it('normalizes valid poll intervals', () => {
+    expect(normalizeWatchCiIntervalSeconds()).toBe(60);
+    expect(normalizeWatchCiIntervalSeconds(30)).toBe(30);
+    expect(normalizeWatchCiIntervalSeconds(600)).toBe(600);
+  });
+
+  it('rejects invalid poll intervals', () => {
+    expect(() => normalizeWatchCiIntervalSeconds(29)).toThrow(
+      /between 30 and 3600/i,
+    );
+    expect(() => normalizeWatchCiIntervalSeconds(3601)).toThrow(
+      /between 30 and 3600/i,
+    );
+    expect(() => normalizeWatchCiIntervalSeconds(30.5)).toThrow(
+      /integer/i,
+    );
+  });
+});