[MM-40144] Restructure tests, add test case numbers, some cleanup (#1864)

* [MM-40144] Restructure tests, add test case numbers, some cleanup

* Fix a test

e2e/specs/startup/config.test.js

@@ -0,0 +1,76 @@
+// Copyright (c) 2016-present Mattermost, Inc. All Rights Reserved.
+// See LICENSE.txt for license information.
+
+'use strict';
+
+const fs = require('fs');
+
+const env = require('../../modules/environment');
+
+describe('config', function desc() {
+    this.timeout(30000);
+
+    beforeEach(async () => {
+        env.createTestUserDataDir();
+        env.cleanTestConfig();
+    });
+
+    afterEach(async () => {
+        if (this.app) {
+            try {
+                await this.app.close();
+            // eslint-disable-next-line no-empty
+            } catch (err) {}
+        }
+    });
+
+    describe('MM-T4401 should show servers in dropdown when there is config file', async () => {
+        const config = env.demoConfig;
+
+        beforeEach(async () => {
+            fs.writeFileSync(env.configFilePath, JSON.stringify(config));
+            this.app = await env.getApp();
+        });
+
+        afterEach(async () => {
+            if (this.app) {
+                try {
+                    await this.app.close();
+                // eslint-disable-next-line no-empty
+                } catch (err) {}
+            }
+        });
+
+        it('MM-T4401_1 should show correct server in the dropdown button', async () => {
+            const mainWindow = this.app.windows().find((window) => window.url().includes('index'));
+            const dropdownButtonText = await mainWindow.innerText('.TeamDropdownButton');
+            dropdownButtonText.should.equal('example');
+        });
+
+        it('MM-T4401_2 should set src of browser view from config file', async () => {
+            const firstServer = this.app.windows().find((window) => window.url() === config.teams[0].url);
+            const secondServer = this.app.windows().find((window) => window.url() === config.teams[1].url);
+
+            firstServer.should.not.be.null;
+            secondServer.should.not.be.null;
+        });
+    });
+
+    it('MM-T4402 should upgrade v0 config file', async () => {
+        const Config = require('../../../src/common/config').default;
+        const newConfig = new Config(env.configFilePath);
+        const oldConfig = {
+            url: env.mattermostURL,
+        };
+        fs.writeFileSync(env.configFilePath, JSON.stringify(oldConfig));
+        this.app = await env.getApp();
+        const mainWindow = this.app.windows().find((window) => window.url().includes('index'));
+        const dropdownButtonText = await mainWindow.innerText('.TeamDropdownButton:has-text("Primary team")');
+        dropdownButtonText.should.equal('Primary team');
+
+        const str = fs.readFileSync(env.configFilePath, 'utf8');
+        const upgradedConfig = JSON.parse(str);
+        upgradedConfig.version.should.equal(newConfig.defaultData.version);
+        await this.app.close();
+    });
+});