refactor: colocate frontend component files

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

@@ -0,0 +1,165 @@
+import { MantineProvider } from "@mantine/core";
+import { type QueryClient, QueryClientProvider } from "@tanstack/react-query";
+import { render, screen, waitFor } from "@testing-library/react";
+import { HttpResponse, http } from "msw";
+import { MemoryRouter } from "react-router";
+import { describe, expect, it, vi } from "vitest";
+import { brokerageAccountsQueryKey } from "@/entities/brokerage-account";
+import { configureAuthClient } from "@/shared/api";
+import { createTestQueryClient } from "@/test/query";
+import { server } from "@/test/server";
+import { AccountsPage } from "./AccountsPage";
+import { AccountsPageEmpty } from "./components/AccountsPageEmpty.view";
+import { AccountsPageError } from "./components/AccountsPageError.view";
+import { AccountsPageLoading } from "./components/AccountsPageLoading.view";
+
+const account = {
+	id: "account-1",
+	name: "Основной",
+	type: "BROKERAGE",
+	openedOn: "2026-01-01",
+} as const;
+
+function configureTestAuth() {
+	configureAuthClient({
+		accessToken: () => "test-token",
+		refresh: async () => true,
+		clear: vi.fn(),
+	});
+}
+
+function renderPage(queryClient: QueryClient) {
+	configureTestAuth();
+	return render(
+		<QueryClientProvider client={queryClient}>
+			<MantineProvider>
+				<MemoryRouter>
+					<AccountsPage />
+				</MemoryRouter>
+			</MantineProvider>
+		</QueryClientProvider>,
+	);
+}
+
+describe("AccountsPage", () => {
+	it.each([
+		["loading", AccountsPageLoading, "status"],
+		["empty", AccountsPageEmpty, undefined],
+	] as const)("renders only the %s state", (_name, State, role) => {
+		render(
+			<MantineProvider>
+				<State />
+			</MantineProvider>,
+		);
+		if (role) expect(screen.getByRole(role)).toBeInTheDocument();
+		else
+			expect(
+				screen.getByRole("heading", { name: "Нет инвестиционных счетов" }),
+			).toBeInTheDocument();
+	});
+
+	it("routes connection errors to settings and keeps retry available", () => {
+		const retry = vi.fn();
+		render(
+			<MantineProvider>
+				<MemoryRouter>
+					<AccountsPageError code="TBANK_UNAVAILABLE" retry={retry} />
+				</MemoryRouter>
+			</MantineProvider>,
+		);
+		screen.getByRole("button", { name: "Повторить" }).click();
+		expect(retry).toHaveBeenCalledOnce();
+		expect(
+			screen.getByRole("link", { name: "Открыть настройки T-Bank" }),
+		).toHaveAttribute("href", "/settings");
+	});
+
+	it("keeps the cached account list visible during a background refresh", async () => {
+		let requestCount = 0;
+		let resolveRefresh: ((response: Response) => void) | undefined;
+		server.use(
+			http.get("*/api/v1/brokerage-accounts", () => {
+				requestCount += 1;
+				if (requestCount === 1) return HttpResponse.json([account]);
+				return new Promise<Response>((resolve) => {
+					resolveRefresh = resolve;
+				});
+			}),
+		);
+		const queryClient = createTestQueryClient();
+		renderPage(queryClient);
+
+		await screen.findByText(account.name);
+		void queryClient.invalidateQueries({
+			queryKey: brokerageAccountsQueryKey,
+		});
+
+		await waitFor(() => expect(requestCount).toBe(2));
+		expect(screen.getByText(account.name)).toBeInTheDocument();
+		expect(
+			screen.getByRole("status", { name: "Обновляем данные" }),
+		).toBeInTheDocument();
+
+		resolveRefresh?.(HttpResponse.json([account]));
+	});
+
+	it("keeps the cached account list and offers retry after a refresh error", async () => {
+		let requestCount = 0;
+		server.use(
+			http.get("*/api/v1/brokerage-accounts", () => {
+				requestCount += 1;
+				if (requestCount === 1) return HttpResponse.json([account]);
+				if (requestCount === 2)
+					return HttpResponse.json(
+						{ code: "TBANK_UNAVAILABLE" },
+						{ status: 503 },
+					);
+				return HttpResponse.json([account]);
+			}),
+		);
+		const queryClient = createTestQueryClient();
+		renderPage(queryClient);
+
+		await screen.findByText(account.name);
+		void queryClient.invalidateQueries({
+			queryKey: brokerageAccountsQueryKey,
+		});
+
+		const warning = await screen.findByText(
+			"Не удалось обновить данные. Показаны последние полученные.",
+		);
+		expect(warning).toBeInTheDocument();
+		expect(screen.getByText(account.name)).toBeInTheDocument();
+
+		screen.getByRole("button", { name: "Повторить" }).click();
+		await waitFor(() => expect(requestCount).toBe(3));
+	});
+
+	it("keeps a cached empty account list visible after a refresh error", async () => {
+		let requestCount = 0;
+		server.use(
+			http.get("*/api/v1/brokerage-accounts", () => {
+				requestCount += 1;
+				if (requestCount === 1) return HttpResponse.json([]);
+				return HttpResponse.json(
+					{ code: "TBANK_UNAVAILABLE" },
+					{ status: 503 },
+				);
+			}),
+		);
+		const queryClient = createTestQueryClient();
+		renderPage(queryClient);
+
+		await screen.findByText("Нет инвестиционных счетов");
+		void queryClient.invalidateQueries({
+			queryKey: brokerageAccountsQueryKey,
+		});
+
+		expect(
+			await screen.findByText(
+				"Не удалось обновить данные. Показаны последние полученные.",
+			),
+		).toBeInTheDocument();
+		expect(screen.getByText("Нет инвестиционных счетов")).toBeInTheDocument();
+	});
+});