[e2e] Refactor and document our extension of existing Playwright API and RFE features (#5537)

e2e/tests/functional/smoke.e2e.spec.js

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+/*****************************************************************************
+ * Open MCT, Copyright (c) 2014-2022, United States Government
+ * as represented by the Administrator of the National Aeronautics and Space
+ * Administration. All rights reserved.
+ *
+ * Open MCT is licensed under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * http://www.apache.org/licenses/LICENSE-2.0.
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations
+ * under the License.
+ *
+ * Open MCT includes source code licensed under additional open source
+ * licenses. See the Open Source Licenses file (LICENSES.md) included with
+ * this source code distribution or the Licensing information page available
+ * at runtime from the About dialog for additional information.
+ *****************************************************************************/
+
+/*
+This test suite is dedicated to tests which can quickly verify that any openmct installation is
+operable and that any type of testing can proceed.
+
+Ideally, smoke tests should make zero assumptions about how and where they are run. This makes them
+more resilient to change and therefor a better indicator of failure. Smoke tests will also run quickly
+as they cover a very "thin surface" of functionality.
+
+When deciding between authoring new smoke tests or functional tests, ask yourself "would I feel
+comfortable running this test during a live mission?" Avoid creating or deleting Domain Objects.
+Make no assumptions about the order that elements appear in the DOM.
+*/
+
+const { test, expect } = require('../../pluginFixtures');
+
+test('Verify that the create button appears and that the Folder Domain Object is available for selection', async ({ page }) => {
+
+    //Go to baseURL
+    await page.goto('./', { waitUntil: 'networkidle' });
+
+    //Click the Create button
+    await page.click('button:has-text("Create")');
+
+    // Verify that Create Folder appears in the dropdown
+    await expect(page.locator(':nth-match(:text("Folder"), 2)')).toBeEnabled();
+});
+
+test('Verify that My Items Tree appears @ipad', async ({ page, openmctConfig }) => {
+    const { myItemsFolderName } = openmctConfig;
+    //Test.slow annotation is currently broken. Needs to be fixed in https://github.com/nasa/openmct/issues/5374
+    test.slow();
+    //Go to baseURL
+    await page.goto('./');
+
+    //My Items to be visible
+    await expect(page.locator(`a:has-text("${myItemsFolderName}")`)).toBeEnabled();
+});