Chore: homepage tests (#6278)

src/widgets/docker/component.test.jsx

@@ -0,0 +1,61 @@
+// @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";
+
+const { useSWR } = vi.hoisted(() => ({ useSWR: vi.fn() }));
+
+vi.mock("swr", () => ({
+  default: useSWR,
+}));
+
+import Component from "./component";
+
+describe("widgets/docker/component", () => {
+  beforeEach(() => {
+    vi.clearAllMocks();
+  });
+
+  it("renders offline status when container is not running", () => {
+    useSWR
+      .mockReturnValueOnce({ data: { status: "exited" }, error: undefined }) // status
+      .mockReturnValueOnce({ data: undefined, error: undefined }); // stats
+
+    renderWithProviders(<Component service={{ widget: { type: "docker", container: "c" } }} />, {
+      settings: { hideErrors: false },
+    });
+
+    expect(screen.getByText("widget.status")).toBeInTheDocument();
+    expect(screen.getByText("docker.offline")).toBeInTheDocument();
+  });
+
+  it("renders cpu/mem/rx/tx values when stats are available", () => {
+    useSWR
+      .mockReturnValueOnce({ data: { status: "running" }, error: undefined }) // status
+      .mockReturnValueOnce({
+        data: {
+          stats: {
+            cpu_stats: { cpu_usage: { total_usage: 200 }, system_cpu_usage: 2000, online_cpus: 2 },
+            precpu_stats: { cpu_usage: { total_usage: 100 }, system_cpu_usage: 1000 },
+            memory_stats: { usage: 1000, total_inactive_file: 100 },
+            networks: { eth0: { rx_bytes: 1, tx_bytes: 2 }, eth1: { rx_bytes: 3, tx_bytes: 4 } },
+          },
+        },
+        error: undefined,
+      });
+
+    const { container } = renderWithProviders(<Component service={{ widget: { type: "docker", container: "c" } }} />, {
+      settings: { hideErrors: false },
+    });
+
+    // cpu: (100/1000)*2*100=20
+    expect(container.textContent).toContain("20");
+    // mem used: 1000-100=900
+    expect(container.textContent).toContain("900");
+    // rx=4, tx=6
+    expect(container.textContent).toContain("4");
+    expect(container.textContent).toContain("6");
+  });
+});

src/widgets/docker/stats-helpers.test.js

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+import { describe, expect, it } from "vitest";
+
+import { calculateCPUPercent, calculateThroughput, calculateUsedMemory } from "./stats-helpers";
+
+describe("widgets/docker/stats-helpers", () => {
+  it("calculateCPUPercent returns 0 when deltas are not positive", () => {
+    expect(
+      calculateCPUPercent({
+        cpu_stats: { cpu_usage: { total_usage: 100 }, system_cpu_usage: 1000, online_cpus: 2 },
+        precpu_stats: { cpu_usage: { total_usage: 100 }, system_cpu_usage: 1000 },
+      }),
+    ).toBe(0);
+  });
+
+  it("calculateCPUPercent computes percent and rounds to 1 decimal", () => {
+    // cpuDelta=100, systemDelta=1000, cpus=2 => (100/1000)*2*100 = 20.0
+    expect(
+      calculateCPUPercent({
+        cpu_stats: { cpu_usage: { total_usage: 200 }, system_cpu_usage: 2000, online_cpus: 2 },
+        precpu_stats: { cpu_usage: { total_usage: 100 }, system_cpu_usage: 1000 },
+      }),
+    ).toBe(20);
+  });
+
+  it("calculateUsedMemory subtracts inactive file (prefers total_inactive_file)", () => {
+    const stats = {
+      memory_stats: {
+        usage: 1000,
+        total_inactive_file: 100,
+        stats: { inactive_file: 200 },
+      },
+    };
+    expect(calculateUsedMemory(stats)).toBe(900);
+  });
+
+  it("calculateUsedMemory falls back to stats.inactive_file when total_inactive_file missing", () => {
+    const stats = {
+      memory_stats: {
+        usage: 1000,
+        stats: { inactive_file: 200 },
+      },
+    };
+    expect(calculateUsedMemory(stats)).toBe(800);
+  });
+
+  it("calculateThroughput uses the special networks.network key when present", () => {
+    const stats = { networks: { network: { rx_bytes: 5, tx_bytes: 6 }, eth0: { rx_bytes: 1, tx_bytes: 2 } } };
+    expect(calculateThroughput(stats)).toEqual({ rxBytes: 5, txBytes: 6 });
+  });
+
+  it("calculateThroughput sums all interfaces otherwise", () => {
+    const stats = { networks: { eth0: { rx_bytes: 1, tx_bytes: 2 }, eth1: { rx_bytes: 3, tx_bytes: 4 } } };
+    expect(calculateThroughput(stats)).toEqual({ rxBytes: 4, txBytes: 6 });
+  });
+});