Chore: homepage tests (#6278)

src/widgets/mylar/component.test.jsx

@@ -0,0 +1,68 @@
+// @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/mylar/component", () => {
+  beforeEach(() => {
+    vi.clearAllMocks();
+  });
+
+  it("renders placeholders while loading", () => {
+    useWidgetAPI.mockReturnValue({ data: undefined, error: undefined });
+
+    const { container } = renderWithProviders(<Component service={{ widget: { type: "mylar" } }} />, {
+      settings: { hideErrors: false },
+    });
+
+    expect(container.querySelectorAll(".service-block")).toHaveLength(3);
+    expect(screen.getByText("mylar.series")).toBeInTheDocument();
+    expect(screen.getByText("mylar.issues")).toBeInTheDocument();
+    expect(screen.getByText("mylar.wanted")).toBeInTheDocument();
+  });
+
+  it("renders error UI when any endpoint errors", () => {
+    useWidgetAPI.mockImplementation((_widget, endpoint) => {
+      if (endpoint === "issues") return { data: undefined, error: { message: "nope" } };
+      return { data: undefined, error: undefined };
+    });
+
+    renderWithProviders(<Component service={{ widget: { type: "mylar" } }} />, { settings: { hideErrors: false } });
+
+    expect(screen.getAllByText(/widget\.api_error/i).length).toBeGreaterThan(0);
+    expect(screen.getByText("nope")).toBeInTheDocument();
+  });
+
+  it("renders series count, total issues, and wanted issues", () => {
+    useWidgetAPI.mockImplementation((_widget, endpoint) => {
+      if (endpoint === "series") return { data: { data: [{ id: 1 }, { id: 2 }] }, error: undefined };
+      if (endpoint === "issues") {
+        return { data: { data: [{ totalIssues: 3 }, { totalIssues: 4 }] }, error: undefined };
+      }
+      if (endpoint === "wanted") return { data: { issues: [{ id: 1 }] }, error: undefined };
+      return { data: undefined, error: undefined };
+    });
+
+    const { container } = renderWithProviders(<Component service={{ widget: { type: "mylar" } }} />, {
+      settings: { hideErrors: false },
+    });
+
+    expectBlockValue(container, "mylar.series", 2);
+    expectBlockValue(container, "mylar.issues", 7);
+    expectBlockValue(container, "mylar.wanted", 1);
+  });
+});

src/widgets/mylar/widget.test.js

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