fix: refactoring version page / fix issue not found page #100 (#117)

* chore: refactoring version page

* refactor: migrate version page to hooks

* refactor: Version page better imports

* fix: #100 render not found on click item

* test: add test for version page

* chore: update mocks

* test: add scenario for not found package

* chore: fix wrong mock path

* chore: update mock

* chore: add todo list

src/pages/Version/Version.test.tsx

@@ -0,0 +1,96 @@
+import React from 'react';
+import { render, cleanup } from '@testing-library/react';
+
+import { MemoryRouter } from 'react-router';
+
+import vueMetadata from '../../../test/fixtures/metadata/vue.json';
+
+import Version from './Version';
+import { waitForElement } from '@testing-library/dom';
+import ErrorBoundary from '../../App/AppError';
+import { LABEL_NOT_FOUND } from '../../components/NotFound/NotFound';
+// import { NOT_FOUND_TEXT } from '../../components/NotFound/NotFound';
+
+// :-) we mock this otherways fails on render, some weird issue on material-ui
+jest.mock('@material-ui/core/Avatar');
+
+describe('test Version page', () => {
+  beforeAll(() => {
+    // FIXME: a better way to mock this
+    // @ts-ignore
+    global.window.VERDACCIO_API_URL = 'http://test';
+  });
+
+  afterEach(() => {
+    cleanup();
+  });
+
+  beforeEach(() => {
+    jest.resetAllMocks();
+  });
+
+  test('should render the version page', async () => {
+    const readmeText = 'test';
+    // @ts-ignore
+    fetch.mockResponses(
+      [[JSON.stringify(vueMetadata)], { status: 200, headers: { 'content-type': 'application/json' } }],
+      [[`<p align="center">${readmeText}</p>`], { status: 200, headers: { 'content-type': 'text/html' } }]
+    );
+
+    const { getByTestId, getByText } = render(
+      <ErrorBoundary>
+        <MemoryRouter>
+          <Version match={{ params: { ['package']: 'vue' } }}></Version>
+        </MemoryRouter>
+      </ErrorBoundary>
+    );
+
+    // first it display loading
+    const hasLoading = getByTestId('loading');
+    expect(hasLoading).toBeTruthy();
+
+    // we wait fetch response (mocked above)
+    await waitForElement(() => getByTestId('version-layout'));
+
+    // check whether readme was loaded
+    const hasReadme = getByText(readmeText);
+
+    expect(hasReadme).toBeTruthy();
+  });
+
+  test('should render 404 page if the resources are not found', async () => {
+    // @ts-ignore
+    fetch.mockResponses(
+      [[JSON.stringify({})], { status: 404, headers: { 'content-type': 'application/json' } }],
+      [[``], { status: 404, headers: { 'content-type': 'text/html' } }]
+    );
+
+    const { getByTestId, getByText } = render(
+      <ErrorBoundary>
+        <MemoryRouter>
+          <Version match={{ params: { ['package']: 'vue' } }}></Version>
+        </MemoryRouter>
+      </ErrorBoundary>
+    );
+
+    // first it display loading
+    const hasLoading = getByTestId('loading');
+    expect(hasLoading).toBeTruthy();
+
+    // we wait fetch response (mocked above)
+    await waitForElement(() => getByTestId('404'));
+
+    // check whether readme was loaded
+    const hasReadme = getByText(LABEL_NOT_FOUND);
+
+    expect(hasReadme).toBeTruthy();
+  });
+
+  // Wanna contribute? Here we some scenarios we need to test
+
+  test.todo('should test click on tabs');
+  test.todo('should check what is rendered int he sidebar is correct');
+  test.todo('should test click back home on 404');
+  test.todo('should test click on elements in the sidebar');
+  test.todo('should test other not consider scenarios');
+});