test: add service stats/status API route coverage

src/pages/api/kubernetes/status/service.test.js

@@ -0,0 +1,89 @@
+import { beforeEach, describe, expect, it, vi } from "vitest";
+
+import createMockRes from "test-utils/create-mock-res";
+
+const { coreApi, kc, getKubeConfig, logger } = vi.hoisted(() => {
+  const coreApi = { listNamespacedPod: vi.fn() };
+  const kc = { makeApiClient: vi.fn(() => coreApi) };
+  const getKubeConfig = vi.fn();
+  const logger = { error: vi.fn() };
+
+  return { coreApi, kc, getKubeConfig, logger };
+});
+
+vi.mock("@kubernetes/client-node", () => ({
+  CoreV1Api: class CoreV1Api {},
+}));
+
+vi.mock("../../../../utils/config/kubernetes", () => ({
+  getKubeConfig,
+}));
+
+vi.mock("../../../../utils/logger", () => ({
+  default: () => logger,
+}));
+
+import handler from "./[...service]";
+
+describe("pages/api/kubernetes/status/[...service]", () => {
+  beforeEach(() => {
+    vi.clearAllMocks();
+  });
+
+  it("returns 400 when kubernetes parameters are missing", async () => {
+    const req = { query: { service: [] } };
+    const res = createMockRes();
+
+    await handler(req, res);
+
+    expect(res.statusCode).toBe(400);
+    expect(res.body.error).toContain("kubernetes query parameters");
+  });
+
+  it("returns 500 when no kube config is available", async () => {
+    getKubeConfig.mockReturnValueOnce(null);
+
+    const req = { query: { service: ["ns", "app"] } };
+    const res = createMockRes();
+
+    await handler(req, res);
+
+    expect(res.statusCode).toBe(500);
+    expect(res.body.error).toContain("No kubernetes configuration");
+  });
+
+  it("returns 404 when no pods are found", async () => {
+    getKubeConfig.mockReturnValueOnce(kc);
+    coreApi.listNamespacedPod.mockResolvedValueOnce({ items: [] });
+
+    const req = { query: { service: ["ns", "app"] } };
+    const res = createMockRes();
+
+    await handler(req, res);
+
+    expect(res.statusCode).toBe(404);
+    expect(res.body.status).toBe("not found");
+  });
+
+  it("computes running/partial/down from pod phases", async () => {
+    getKubeConfig.mockReturnValueOnce(kc);
+    coreApi.listNamespacedPod.mockResolvedValueOnce({
+      items: [{ status: { phase: "Running" } }, { status: { phase: "Running" } }],
+    });
+
+    const resRunning = createMockRes();
+    await handler({ query: { service: ["ns", "app"] } }, resRunning);
+    expect(resRunning.statusCode).toBe(200);
+    expect(resRunning.body.status).toBe("running");
+
+    getKubeConfig.mockReturnValueOnce(kc);
+    coreApi.listNamespacedPod.mockResolvedValueOnce({
+      items: [{ status: { phase: "Running" } }, { status: { phase: "Pending" } }],
+    });
+
+    const resPartial = createMockRes();
+    await handler({ query: { service: ["ns", "app"] } }, resPartial);
+    expect(resPartial.statusCode).toBe(200);
+    expect(resPartial.body.status).toBe("partial");
+  });
+});