test(search): stabilize reranker-backed suites

Author: PatrickSys

tests/impact-2hop.test.ts

@@ -17,7 +17,8 @@ import {
 
 vi.mock('../src/core/reranker.js', () => ({
   rerank: vi.fn(async (_query: string, results: unknown) => results),
-  getRerankerStatus: vi.fn(() => 'fallback')
+  getRerankerStatus: vi.fn(() => 'fallback'),
+  isAmbiguous: vi.fn(() => false)
 }));
 
 describe('Impact candidates (2-hop)', () => {

tests/search-decision-card.test.ts

@@ -7,7 +7,8 @@ import { rmWithRetries } from './test-helpers.js';
 
 vi.mock('../src/core/reranker.js', () => ({
   rerank: vi.fn(async (_query: string, results: unknown) => results),
-  getRerankerStatus: vi.fn(() => 'fallback')
+  getRerankerStatus: vi.fn(() => 'fallback'),
+  isAmbiguous: vi.fn(() => false)
 }));
 
 type ToolCallRequest = {

tests/search-hints.test.ts

@@ -11,6 +11,12 @@ import {
   KEYWORD_INDEX_FILENAME
 } from '../src/constants/codebase-context.js';
 
+vi.mock('../src/core/reranker.js', () => ({
+  rerank: vi.fn(async (_query: string, results: unknown) => results),
+  getRerankerStatus: vi.fn(() => 'fallback'),
+  isAmbiguous: vi.fn(() => false)
+}));
+
 describe('Search Hints', () => {
   let tempRoot: string | null = null;
 

tests/search-snippets.test.ts

@@ -7,7 +7,8 @@ import { rmWithRetries } from './test-helpers.js';
 
 vi.mock('../src/core/reranker.js', () => ({
   rerank: vi.fn(async (_query: string, results: unknown) => results),
-  getRerankerStatus: vi.fn(() => 'fallback')
+  getRerankerStatus: vi.fn(() => 'fallback'),
+  isAmbiguous: vi.fn(() => false)
 }));
 
 describe('Search Snippets with Scope Headers', () => {