Chore: homepage tests (#6278)

src/widgets/changedetectionio/component.test.jsx

@@ -0,0 +1,56 @@
+// @vitest-environment jsdom
+
+import { screen } from "@testing-library/react";
+import { beforeEach, describe, expect, it, vi } from "vitest";
+
+import { renderWithProviders } from "test-utils/render-with-providers";
+import { findServiceBlockByLabel } from "test-utils/widget-assertions";
+
+const { useWidgetAPI } = vi.hoisted(() => ({ useWidgetAPI: vi.fn() }));
+
+vi.mock("utils/proxy/use-widget-api", () => ({ default: useWidgetAPI }));
+
+import Component from "./component";
+
+function expectBlockValue(container, label, value) {
+  const block = findServiceBlockByLabel(container, label);
+  expect(block, `missing block for ${label}`).toBeTruthy();
+  expect(block.textContent).toContain(String(value));
+}
+
+describe("widgets/changedetectionio/component", () => {
+  beforeEach(() => {
+    vi.clearAllMocks();
+  });
+
+  it("renders placeholders while loading", () => {
+    useWidgetAPI.mockReturnValue({ data: undefined, error: undefined });
+
+    const { container } = renderWithProviders(<Component service={{ widget: { type: "changedetectionio" } }} />, {
+      settings: { hideErrors: false },
+    });
+
+    expect(container.querySelectorAll(".service-block")).toHaveLength(2);
+    expect(screen.getByText("changedetectionio.diffsDetected")).toBeInTheDocument();
+    expect(screen.getByText("changedetectionio.totalObserved")).toBeInTheDocument();
+  });
+
+  it("computes diffs detected (last_changed > 0 and not viewed)", () => {
+    useWidgetAPI.mockReturnValue({
+      data: {
+        a: { last_changed: 1, viewed: false },
+        b: { last_changed: 0, viewed: false },
+        c: { last_changed: 2, viewed: true },
+        d: { last_changed: 3, viewed: false },
+      },
+      error: undefined,
+    });
+
+    const { container } = renderWithProviders(<Component service={{ widget: { type: "changedetectionio" } }} />, {
+      settings: { hideErrors: false },
+    });
+
+    expectBlockValue(container, "changedetectionio.totalObserved", 4);
+    expectBlockValue(container, "changedetectionio.diffsDetected", 2);
+  });
+});

src/widgets/changedetectionio/widget.test.js

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