lens/src/renderer/components/layout/__test__/main-layout-header.test.tsx

jest.mock("../../../../common/ipc");

import React from "react";
import { render } from "@testing-library/react";
import "@testing-library/jest-dom/extend-expect";

import { MainLayoutHeader } from "../main-layout-header";
import { Cluster } from "../../../../main/cluster";
import { ClusterStore } from "../../../../common/cluster-store";
import mockFs from "mock-fs";

describe("<MainLayoutHeader />", () => {
  let cluster: Cluster;

  beforeEach(() => {
    const mockOpts = {
      "minikube-config.yml": JSON.stringify({
        apiVersion: "v1",
        clusters: [{
          name: "minikube",
          cluster: {
            server: "https://192.168.64.3:8443",
          },
        }],
        contexts: [{
          context: {
            cluster: "minikube",
            user: "minikube",
          },
          name: "minikube",
        }],
        users: [{
          name: "minikube",
        }],
        kind: "Config",
        preferences: {},
      })
    };

    mockFs(mockOpts);

    ClusterStore.createInstance();

    cluster = new Cluster({
      id: "foo",
      contextName: "minikube",
      kubeConfigPath: "minikube-config.yml",
    });
  });

  afterEach(() => {
    ClusterStore.resetInstance();
    mockFs.restore();
  });

  it("renders w/o errors", () => {
    const { container } = render(<MainLayoutHeader cluster={cluster} />);

    expect(container).toBeInstanceOf(HTMLElement);
  });

  it("renders cluster name", () => {
    const { getByText } = render(<MainLayoutHeader cluster={cluster} />);

    expect(getByText("minikube")).toBeInTheDocument();
  });
});