Add test case for bootstrapper js

test/navigation/bootstrapper.test.js

@@ -0,0 +1,32 @@
+import { readFile } from '@web/test-runner-commands';
+import { expect } from '@esm-bundle/chai';
+import sinon from 'sinon';
+import loadBlock from '../../libs/navigation/bootstrapper.js';
+
+document.body.innerHTML = await readFile({ path: './mocks/body.html' });
+
+const blockConfig = {
+  name: 'global-footer',
+  targetEl: 'footer',
+  appendType: 'appendChild',
+  footer: { authoringPath: '/federal/home', privacyLoadDelay: 0 },
+};
+
+const miloConfigs = {
+  origin: 'https://feds--milo--adobecom.hlx.page',
+  miloLibs: 'https://feds--milo--adobecom.hlx.page/libs',
+  pathname: '/',
+};
+
+describe('Bootstrapper', async () => {
+  it('Renders the footer block', async () => {
+    await loadBlock(miloConfigs, blockConfig);
+    const clock = sinon.useFakeTimers({
+      toFake: ['setTimeout'],
+      shouldAdvanceTime: true,
+    });
+    clock.tick(3000);
+    const el = document.getElementsByTagName('footer');
+    expect(el).to.exist;
+  });
+});