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

src/pages/accounts/ui/AccountsPage/AccountsPage.test.tsx

@@ -1,6 +1,6 @@
 import { MantineProvider } from "@mantine/core";
 import { type QueryClient, QueryClientProvider } from "@tanstack/react-query";
-import { render, screen, waitFor } from "@testing-library/react";
+import { fireEvent, render, screen, waitFor } from "@testing-library/react";
 import { http, HttpResponse } from "msw";
 import { MemoryRouter } from "react-router";
 import { describe, expect, it, vi } from "vitest";
@@ -261,6 +261,101 @@ describe("AccountsPage", () => {
 	});
 });
 
+// Automatic read retries wait 1s + 2s before the failure is final.
+const RETRIES_EXHAUSTED_MS = 6000;
+const TEST_MS = 10_000;
+
+describe("exhausted read retries", () => {
+	it(
+		"keeps the cached list, warns and retries the same accounts GET",
+		{ timeout: TEST_MS },
+		async () => {
+			let isFailing = false;
+			let requests = 0;
+			server.use(
+				http.get("*/api/v1/brokerage-accounts", () => {
+					requests += 1;
+					if (isFailing)
+						return HttpResponse.json(
+							{ code: "TBANK_UNAVAILABLE" },
+							{ status: 503 },
+						);
+
+					return HttpResponse.json(resource([account]));
+				}),
+			);
+			const queryClient = createTestQueryClient();
+			renderPage(queryClient);
+			await screen.findByText("Основной");
+			expect(screen.queryByRole("button", { name: "Повторить" }))
+				.not.toBeInTheDocument();
+
+			isFailing = true;
+			void queryClient.invalidateQueries({
+				queryKey: brokerageAccountsQueryKey,
+			});
+
+			const retry = await screen.findByRole(
+				"button",
+				{ name: "Повторить" },
+				{ timeout: RETRIES_EXHAUSTED_MS },
+			);
+
+			expect(screen.getByText("Не удалось обновить данные")).toBeInTheDocument();
+			expect(screen.getByText("Основной")).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);
+			expect(screen.getByText("Основной")).toBeInTheDocument();
+		},
+	);
+
+	it(
+		"offers retry on the unavailable state after an initial failure",
+		{ timeout: TEST_MS },
+		async () => {
+			let isFailing = true;
+			server.use(
+				http.get("*/api/v1/brokerage-accounts", () =>
+					isFailing
+						? HttpResponse.json({ code: "TBANK_UNAVAILABLE" }, { status: 503 })
+						: HttpResponse.json(resource([account]))),
+			);
+			renderPage(createTestQueryClient());
+
+			const retry = await screen.findByRole(
+				"button",
+				{ name: "Повторить" },
+				{ timeout: RETRIES_EXHAUSTED_MS },
+			);
+
+			isFailing = false;
+			fireEvent.click(retry);
+
+			expect(await screen.findByText("Основной")).toBeInTheDocument();
+		},
+	);
+
+	it("does not offer a plain retry when the connection is lost", async () => {
+		server.use(
+			http.get("*/api/v1/brokerage-accounts", () =>
+				HttpResponse.json({ code: "TBANK_NOT_CONNECTED" }, { status: 409 })),
+		);
+		renderPage(createTestQueryClient());
+
+		expect(await screen.findByRole("link", { name: "Открыть настройки T-Bank" }))
+			.toBeInTheDocument();
+		expect(screen.queryByRole("button", { name: "Повторить" }))
+			.not.toBeInTheDocument();
+	});
+});
+
 it.each(["none", "failed"] as const)(
 	"keeps incomplete empty membership distinct from no accounts (attempt=%s)",
 	async (state) => {