refactor(test): share pw-tools-core test setup

src/browser/pw-tools-core.test-harness.ts

@@ -0,0 +1,64 @@
+import { beforeEach, vi } from "vitest";
+
+let currentPage: Record<string, unknown> | null = null;
+let currentRefLocator: Record<string, unknown> | null = null;
+let pageState: {
+  console: unknown[];
+  armIdUpload: number;
+  armIdDialog: number;
+  armIdDownload: number;
+} = {
+  console: [],
+  armIdUpload: 0,
+  armIdDialog: 0,
+  armIdDownload: 0,
+};
+
+const sessionMocks = vi.hoisted(() => ({
+  getPageForTargetId: vi.fn(async () => {
+    if (!currentPage) {
+      throw new Error("missing page");
+    }
+    return currentPage;
+  }),
+  ensurePageState: vi.fn(() => pageState),
+  restoreRoleRefsForTarget: vi.fn(() => {}),
+  refLocator: vi.fn(() => {
+    if (!currentRefLocator) {
+      throw new Error("missing locator");
+    }
+    return currentRefLocator;
+  }),
+  rememberRoleRefsForTarget: vi.fn(() => {}),
+}));
+
+vi.mock("./pw-session.js", () => sessionMocks);
+
+export function getPwToolsCoreSessionMocks() {
+  return sessionMocks;
+}
+
+export function setPwToolsCoreCurrentPage(page: Record<string, unknown> | null) {
+  currentPage = page;
+}
+
+export function setPwToolsCoreCurrentRefLocator(locator: Record<string, unknown> | null) {
+  currentRefLocator = locator;
+}
+
+export function installPwToolsCoreTestHooks() {
+  beforeEach(() => {
+    currentPage = null;
+    currentRefLocator = null;
+    pageState = {
+      console: [],
+      armIdUpload: 0,
+      armIdDialog: 0,
+      armIdDownload: 0,
+    };
+
+    for (const fn of Object.values(sessionMocks)) {
+      fn.mockClear();
+    }
+  });
+}