test: cover null events and income envelopes on account pages (#72) (#79)

src/pages/account-events/ui/AccountEventsPage/AccountEventsPage.test.tsx

@@ -211,4 +211,30 @@ describe("AccountEventsPage", () => {
 		expect(status).toHaveAttribute("aria-busy", "true");
 		expect(within(status).queryByRole("button")).not.toBeInTheDocument();
 	});
+
+	it("keeps a null events envelope loading instead of an empty period", () => {
+		query.mockReturnValue(
+			{
+				data: null,
+				isError: false,
+				isLoading: false,
+				meta: {
+					availability: "available",
+					completeness: "complete",
+					lastAttempt: { finishedAt: null, problems: [], startedAt: null, state: "none" },
+				},
+				refetch: vi.fn(),
+			} as never,
+		);
+
+		renderPage();
+
+		expect(screen.getByRole("status", { name: "Загрузка" })).toHaveAttribute(
+			"aria-busy",
+			"true",
+		);
+		expect(
+			screen.queryByText("За выбранный период событий не найдено"),
+		).not.toBeInTheDocument();
+	});
 });