test(memory): share memory-tool manager mock fixture

test/helpers/memory-tool-manager-mock.ts

@@ -0,0 +1,65 @@
+import { vi } from "vitest";
+
+export type SearchImpl = () => Promise<unknown[]>;
+export type MemoryReadParams = { relPath: string; from?: number; lines?: number };
+export type MemoryReadResult = { text: string; path: string };
+type MemoryBackend = "builtin" | "qmd";
+
+let backend: MemoryBackend = "builtin";
+let searchImpl: SearchImpl = async () => [];
+let readFileImpl: (params: MemoryReadParams) => Promise<MemoryReadResult> = async (params) => ({
+  text: "",
+  path: params.relPath,
+});
+
+const stubManager = {
+  search: vi.fn(async () => await searchImpl()),
+  readFile: vi.fn(async (params: MemoryReadParams) => await readFileImpl(params)),
+  status: () => ({
+    backend,
+    files: 1,
+    chunks: 1,
+    dirty: false,
+    workspaceDir: "/workspace",
+    dbPath: "/workspace/.memory/index.sqlite",
+    provider: "builtin",
+    model: "builtin",
+    requestedProvider: "builtin",
+    sources: ["memory" as const],
+    sourceCounts: [{ source: "memory" as const, files: 1, chunks: 1 }],
+  }),
+  sync: vi.fn(),
+  probeVectorAvailability: vi.fn(async () => true),
+  close: vi.fn(),
+};
+
+vi.mock("../../src/memory/index.js", () => ({
+  getMemorySearchManager: async () => ({ manager: stubManager }),
+}));
+
+export function setMemoryBackend(next: MemoryBackend): void {
+  backend = next;
+}
+
+export function setMemorySearchImpl(next: SearchImpl): void {
+  searchImpl = next;
+}
+
+export function setMemoryReadFileImpl(
+  next: (params: MemoryReadParams) => Promise<MemoryReadResult>,
+): void {
+  readFileImpl = next;
+}
+
+export function resetMemoryToolMockState(overrides?: {
+  backend?: MemoryBackend;
+  searchImpl?: SearchImpl;
+  readFileImpl?: (params: MemoryReadParams) => Promise<MemoryReadResult>;
+}): void {
+  backend = overrides?.backend ?? "builtin";
+  searchImpl = overrides?.searchImpl ?? (async () => []);
+  readFileImpl =
+    overrides?.readFileImpl ??
+    (async (params: MemoryReadParams) => ({ text: "", path: params.relPath }));
+  vi.clearAllMocks();
+}