Chore: homepage tests (#6278)

src/widgets/coinmarketcap/component.test.jsx

@@ -0,0 +1,86 @@
+// @vitest-environment jsdom
+
+import { fireEvent, screen } from "@testing-library/react";
+import { beforeEach, describe, expect, it, vi } from "vitest";
+
+import { renderWithProviders } from "test-utils/render-with-providers";
+
+const { useWidgetAPI } = vi.hoisted(() => ({ useWidgetAPI: vi.fn() }));
+
+vi.mock("utils/proxy/use-widget-api", () => ({ default: useWidgetAPI }));
+
+// HeadlessUI dropdown is hard to test reliably; stub to a simple button.
+vi.mock("components/services/dropdown", () => ({
+  default: ({ value, setValue }) => (
+    <button type="button" data-testid="cmc-dropdown" onClick={() => setValue("24h")}>
+      {value}
+    </button>
+  ),
+}));
+
+import Component from "./component";
+
+describe("widgets/coinmarketcap/component", () => {
+  beforeEach(() => {
+    vi.clearAllMocks();
+  });
+
+  it("renders a configure message when no symbols/slugs are provided", () => {
+    useWidgetAPI.mockReturnValue({ data: undefined, error: undefined });
+
+    renderWithProviders(<Component service={{ widget: { type: "coinmarketcap" } }} />, {
+      settings: { hideErrors: false },
+    });
+
+    expect(screen.getByText("coinmarketcap.configure")).toBeInTheDocument();
+  });
+
+  it("renders error UI when widget API errors", () => {
+    useWidgetAPI.mockReturnValue({ data: undefined, error: { message: "nope" } });
+
+    renderWithProviders(<Component service={{ widget: { type: "coinmarketcap", symbols: ["BTC"] } }} />, {
+      settings: { hideErrors: false },
+    });
+
+    // Error component normalizes the error into a message line we can assert on.
+    expect(screen.getByText("nope")).toBeInTheDocument();
+  });
+
+  it("renders valid cryptos and updates percent change when date range changes", () => {
+    useWidgetAPI.mockReturnValue({
+      data: {
+        data: {
+          BTC: {
+            id: 1,
+            name: "Bitcoin",
+            quote: { USD: { price: 30000, percent_change_1h: 1.234, percent_change_24h: -2.5 } },
+          },
+          ETH: {
+            id: 2,
+            name: "Ethereum",
+            quote: { USD: { price: 2000, percent_change_1h: null, percent_change_24h: null } },
+          },
+        },
+      },
+      error: undefined,
+    });
+
+    renderWithProviders(
+      <Component
+        service={{ widget: { type: "coinmarketcap", symbols: ["BTC", "ETH"], currency: "USD", defaultinterval: "1h" } }}
+      />,
+      { settings: { hideErrors: false } },
+    );
+
+    // Only BTC is valid for 1h, ETH is filtered out due to null percent change.
+    expect(screen.getByTestId("cmc-dropdown")).toHaveTextContent("1h");
+    expect(screen.getByText("Bitcoin")).toBeInTheDocument();
+    expect(screen.queryByText("Ethereum")).toBeNull();
+    expect(screen.getByText("30000")).toBeInTheDocument();
+    expect(screen.getByText("1.23%")).toBeInTheDocument();
+
+    fireEvent.click(screen.getByTestId("cmc-dropdown"));
+    expect(screen.getByTestId("cmc-dropdown")).toHaveTextContent("24h");
+    expect(screen.getByText("-2.50%")).toBeInTheDocument();
+  });
+});

src/widgets/coinmarketcap/widget.test.js

@@ -0,0 +1,11 @@
+import { describe, it } from "vitest";
+
+import { expectWidgetConfigShape } from "test-utils/widget-config";
+
+import widget from "./widget";
+
+describe("coinmarketcap widget config", () => {
+  it("exports a valid widget config", () => {
+    expectWidgetConfigShape(widget);
+  });
+});