Test: 10 more widget components (E)

src/widgets/grafana/component.test.jsx

@@ -0,0 +1,95 @@
+// @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/grafana/component", () => {
+  beforeEach(() => {
+    vi.clearAllMocks();
+  });
+
+  it("renders placeholders while loading (stats missing)", () => {
+    useWidgetAPI
+      .mockReturnValueOnce({ data: undefined, error: undefined }) // stats
+      .mockReturnValueOnce({ data: undefined, error: undefined }) // alerts
+      .mockReturnValueOnce({ data: undefined, error: undefined }); // grafana
+
+    const { container } = renderWithProviders(
+      <Component service={{ widget: { type: "grafana", url: "http://x" } }} />,
+      {
+        settings: { hideErrors: false },
+      },
+    );
+
+    expect(container.querySelectorAll(".service-block")).toHaveLength(4);
+    expect(screen.getByText("grafana.dashboards")).toBeInTheDocument();
+    expect(screen.getByText("grafana.datasources")).toBeInTheDocument();
+    expect(screen.getByText("grafana.totalalerts")).toBeInTheDocument();
+    expect(screen.getByText("grafana.alertstriggered")).toBeInTheDocument();
+  });
+
+  it("computes triggered alerts for v1 from alert state=alerting", () => {
+    useWidgetAPI
+      .mockReturnValueOnce({ data: { dashboards: 1, datasources: 2, alerts: 3 }, error: undefined }) // stats
+      .mockReturnValueOnce(
+        {
+          data: [{ state: "ok" }, { state: "alerting" }, { state: "alerting" }],
+          error: undefined,
+        }, // alerts
+      )
+      .mockReturnValueOnce({ data: [{ id: 1 }], error: undefined }); // grafana (unused)
+
+    const { container } = renderWithProviders(
+      <Component service={{ widget: { type: "grafana", url: "http://x", version: 1 } }} />,
+      { settings: { hideErrors: false } },
+    );
+
+    expectBlockValue(container, "grafana.dashboards", 1);
+    expectBlockValue(container, "grafana.datasources", 2);
+    expectBlockValue(container, "grafana.totalalerts", 3);
+    expectBlockValue(container, "grafana.alertstriggered", 2);
+  });
+
+  it("falls back to the secondary endpoint for v1 when the primary alerts endpoint errors", () => {
+    useWidgetAPI
+      .mockReturnValueOnce({ data: { dashboards: 0, datasources: 0, alerts: 0 }, error: undefined }) // stats
+      .mockReturnValueOnce({ data: undefined, error: { message: "primary down" } }) // alerts
+      .mockReturnValueOnce({ data: [{ id: 1 }, { id: 2 }, { id: 3 }], error: undefined }); // grafana
+
+    const { container } = renderWithProviders(
+      <Component service={{ widget: { type: "grafana", url: "http://x", version: 1 } }} />,
+      { settings: { hideErrors: false } },
+    );
+
+    // Should not error if only the primary endpoint failed.
+    expect(screen.queryAllByText(/widget\.api_error/i)).toHaveLength(0);
+    expectBlockValue(container, "grafana.alertstriggered", 3);
+  });
+
+  it("uses the configured alerts endpoint for v2 and counts all returned alerts", () => {
+    useWidgetAPI
+      .mockReturnValueOnce({ data: { dashboards: 9, datasources: 8, alerts: 7 }, error: undefined }) // stats
+      .mockReturnValueOnce({ data: [{ id: 1 }, { id: 2 }], error: undefined }) // primary (custom)
+      .mockReturnValueOnce({ data: undefined, error: undefined }); // secondary (disabled)
+
+    const service = { widget: { type: "grafana", url: "http://x", version: 2, alerts: "custom" } };
+    const { container } = renderWithProviders(<Component service={service} />, { settings: { hideErrors: false } });
+
+    expect(useWidgetAPI.mock.calls[1][1]).toBe("custom");
+    expectBlockValue(container, "grafana.alertstriggered", 2);
+  });
+});