Add widget component tests (proxmox..sabnzbd)

src/widgets/proxmoxvm/component.test.jsx

@@ -0,0 +1,49 @@
+// @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 { useSWR } = vi.hoisted(() => ({ useSWR: vi.fn() }));
+vi.mock("swr", () => ({ default: useSWR }));
+
+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/proxmoxvm/component", () => {
+  beforeEach(() => {
+    vi.clearAllMocks();
+  });
+
+  it("renders placeholders while loading", () => {
+    useSWR.mockReturnValue({ data: undefined, error: undefined });
+
+    const { container } = renderWithProviders(
+      <Component service={{ widget: { type: "proxmoxvm", node: "n1", vmid: "100" } }} />,
+      { settings: { hideErrors: false } },
+    );
+
+    expect(container.querySelectorAll(".service-block")).toHaveLength(2);
+    expect(screen.getByText("resources.cpu")).toBeInTheDocument();
+    expect(screen.getByText("resources.mem")).toBeInTheDocument();
+  });
+
+  it("renders cpu percent and mem bytes when loaded", () => {
+    useSWR.mockReturnValue({ data: { cpu: 0.5, mem: 1024 }, error: undefined });
+
+    const { container } = renderWithProviders(
+      <Component service={{ widget: { type: "proxmoxvm", node: "n1", vmid: "100" } }} />,
+      { settings: { hideErrors: false } },
+    );
+
+    expectBlockValue(container, "resources.cpu", 50);
+    expectBlockValue(container, "resources.mem", 1024);
+  });
+});