feat(investments): warn and offer retry after exhausted read retries (WealthLedger/frontend#55) (#136)

src/pages/account-operations/ui/AccountOperationsPage/AccountOperationsPage.test.tsx

@@ -90,9 +90,13 @@ function configureTestAuth() {
 	});
 }
 
-function renderPage(search = "", accountId = "account-1") {
+function renderPage(
+	search = "",
+	accountId = "account-1",
+	queryClient = createTestQueryClient(),
+) {
 	return render(
-		<QueryClientProvider client={createTestQueryClient()}>
+		<QueryClientProvider client={queryClient}>
 			<MantineProvider>
 				<MemoryRouter
 					initialEntries={[`/accounts/${accountId}/operations${search}`]}
@@ -109,6 +113,18 @@ function renderPage(search = "", accountId = "account-1") {
 	);
 }
 
+// Automatic read retries wait 1s + 2s before the failure is final.
+const RETRIES_EXHAUSTED_MS = 6000;
+const TEST_MS = 10_000;
+
+const loadedOperations = {
+	accountId: "account-1",
+	hasNext: false,
+	items: [operation],
+	nextCursor: null,
+	observedAt: "2026-08-14T00:00:00Z",
+};
+
 describe("LedgerEntryRow", () => {
 	it("marks cashless operations without rendering operation details", () => {
 		render(
@@ -545,20 +561,87 @@ describe("AccountOperationsPage", () => {
 		).toBeInTheDocument();
 	});
 
-	it("renders an error state", async () => {
-		configureTestAuth();
-		server.use(
-			http.get("*/api/v1/brokerage-accounts/:accountId/operations", () =>
-				HttpResponse.json({ code: "TBANK_UNAVAILABLE" }, { status: 503 }),
-			),
-		);
-		renderPage();
-		expect(
-			await screen.findByText("Не удалось загрузить журнал", undefined, {
-				timeout: 4000,
-			}),
-		).toBeInTheDocument();
-	});
+	it(
+		"renders an error state with retry that recovers in place",
+		{ timeout: TEST_MS },
+		async () => {
+			configureTestAuth();
+			let isFailing = true;
+			let requests = 0;
+			server.use(
+				http.get("*/api/v1/brokerage-accounts/:accountId/operations", () => {
+					requests += 1;
+
+					return isFailing
+						? HttpResponse.json({ code: "TBANK_UNAVAILABLE" }, { status: 503 })
+						: HttpResponse.json(resource(loadedOperations));
+				}),
+			);
+			renderPage();
+			expect(
+				await screen.findByText("Не удалось загрузить журнал", undefined, {
+					timeout: RETRIES_EXHAUSTED_MS,
+				}),
+			).toBeInTheDocument();
+			expect(requests).toBe(3);
+
+			isFailing = false;
+			fireEvent.click(screen.getByRole("button", { name: "Повторить" }));
+
+			expect(await screen.findByText("Покупка акций")).toBeInTheDocument();
+			expect(requests).toBe(4);
+		},
+	);
+
+	it(
+		"keeps cached operations, warns and retries the same GET",
+		{ timeout: TEST_MS },
+		async () => {
+			configureTestAuth();
+			let isFailing = false;
+			let requests = 0;
+			server.use(
+				http.get("*/api/v1/brokerage-accounts/:accountId/operations", () => {
+					requests += 1;
+
+					return isFailing
+						? HttpResponse.json({ code: "TBANK_UNAVAILABLE" }, { status: 503 })
+						: HttpResponse.json(resource(loadedOperations));
+				}),
+			);
+			const queryClient = createTestQueryClient();
+			renderPage("", "account-1", queryClient);
+			await screen.findByText("Покупка акций");
+			expect(screen.queryByRole("button", { name: "Повторить" }))
+				.not.toBeInTheDocument();
+
+			isFailing = true;
+			void queryClient.invalidateQueries({
+				queryKey: [
+					"get",
+					"/api/v1/brokerage-accounts/{accountId}/operations",
+				],
+			});
+
+			const retry = await screen.findByRole(
+				"button",
+				{ name: "Повторить" },
+				{ timeout: RETRIES_EXHAUSTED_MS },
+			);
+
+			expect(screen.getByText("Не удалось обновить данные")).toBeInTheDocument();
+			expect(screen.getByText("Покупка акций")).toBeInTheDocument();
+			expect(requests).toBe(4);
+
+			isFailing = false;
+			fireEvent.click(retry);
+
+			await waitFor(() =>
+				expect(screen.queryByText("Не удалось обновить данные"))
+					.not.toBeInTheDocument());
+			expect(requests).toBe(5);
+		},
+	);
 
 	it("keeps a null operations envelope loading instead of a confirmed empty period", async () => {
 		configureTestAuth();