test: tests for HomeLoggedOut component

frontend/__tests__/unit/HomeLoggedOut.snapshot.jsx

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+import { render } from "@testing-library/react";
+import HomeLoggedOut from "../../src/components/HomeLoggedOut";
+
+it("renders HomeLoggedOut unchanged", () => {
+  const { container } = render(<HomeLoggedOut />);
+  expect(container).toMatchSnapshot();
+});

frontend/__tests__/unit/HomeLoggedOut.test.jsx

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+import { render, screen } from "@testing-library/react";
+import HomeLoggedOut from "../../src/components/HomeLoggedOut";
+import { Router } from "react-router-dom";
+import { createMemoryHistory } from "history";
+import { act } from "react-dom/test-utils";
+
+var axios = require("axios");
+var MockAdapter = require("axios-mock-adapter");
+var mock = new MockAdapter(axios);
+
+describe("HomeLoggedOut", () => {
+  test("renders HomeLoggedOut when authentication is enabled", () => {
+    const history = createMemoryHistory();
+    const goSpy = jest.spyOn(history, "go");
+
+    mock.onGet("/auth/login").reply(200, { enabled: true });
+
+    render(
+      <Router history={history}>
+        <HomeLoggedOut />
+      </Router>
+    );
+
+    const projectDescription = screen.getByRole("heading", {
+      name: "ZeroUI - ZeroTier Controller Web UI - is a web user interface for a self-hosted ZeroTier network controller.",
+    });
+
+    const loginMessage = screen.getByText(/Please Log In to continue/i);
+
+    expect(projectDescription).toBeInTheDocument();
+    expect(loginMessage).toBeInTheDocument();
+    expect(goSpy).not.toHaveBeenCalled();
+  });
+
+  test("renders HomeLoggedOut when authentication is disabled", async () => {
+    const history = createMemoryHistory();
+    const goSpy = jest.spyOn(history, "go");
+
+    mock.onGet("/auth/login").reply(200, { enabled: false });
+
+    await act(async () => {
+      render(
+        <Router history={history}>
+          <HomeLoggedOut />
+        </Router>
+      );
+    });
+
+    const projectDescription = screen.getByRole("heading", {
+      name: "ZeroUI - ZeroTier Controller Web UI - is a web user interface for a self-hosted ZeroTier network controller.",
+    });
+
+    const loginMessage = screen.getByText(/Please Log In to continue/i);
+
+    expect(projectDescription).toBeInTheDocument();
+    expect(loginMessage).toBeInTheDocument();
+    expect(goSpy).toHaveBeenCalled();
+  });
+});

frontend/__tests__/unit/__snapshots__/HomeLoggedOut.snapshot.jsx.snap

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+// Jest Snapshot v1, https://goo.gl/fbAQLP
+
+exports[`renders HomeLoggedOut unchanged 1`] = `
+<div>
+  <div
+    class="MuiGrid-root MuiGrid-container MuiGrid-direction-xs-column MuiGrid-align-items-xs-center MuiGrid-justify-content-xs-center"
+    style="min-height: 50vh;"
+  >
+    <div
+      class="MuiGrid-root MuiGrid-item MuiGrid-grid-xs-10"
+    >
+      <h5
+        class="MuiTypography-root MuiTypography-h5"
+      >
+        <span>
+          ZeroUI - ZeroTier Controller Web UI - is a web user interface for a self-hosted ZeroTier network controller.
+        </span>
+      </h5>
+      <p
+        class="MuiTypography-root MuiTypography-body1"
+      >
+        <span>
+          Please Log In to continue
+        </span>
+      </p>
+    </div>
+  </div>
+</div>
+`;