Merge selenium changes from tanzu (backport #15162)

selenium/README.md

@@ -236,3 +236,8 @@ following command:
 MOCHA_DOCKER_FILE=\location\of\my\Dockerfile ./run-suites.sh
 ```
 
+## Issues deploying UAA 
+
+If you are not able to successfully run any test case that depends on UAA 
+because UAA fails to start, make sure you are using VZ emulation in your docker 
+engine. Without VZ emulation, the uaa docker container cannot start.

selenium/test/oauth/with-idp-initiated/happy-login.js

@@ -11,22 +11,26 @@ describe('A user with a JWT token', function () {
   let overview
   let captureScreen
   let fakePortal
-
+  let username
+  let password
+
   before(async function () {
+    username = process.env.MGT_CLIENT_ID_FOR_IDP_INITIATED || 'rabbit_idp_user'
+    password = process.env.MGT_CLIENT_SECRET_FOR_IDP_INITIATED || 'rabbit_idp_user'
     driver = buildDriver()
     overview = new OverviewPage(driver)
     captureScreen = captureScreensFor(driver, __filename)
     fakePortal = new FakePortalPage(driver)
   })
 
   it('can log in presenting the token to the /login URL via fakeportal', async function () {
-    await fakePortal.goToHome("rabbit_idp_user", "rabbit_idp_user")
+    await fakePortal.goToHome(username, password)
     if (!await fakePortal.isLoaded()) {
       throw new Error('Failed to load fakePortal')
     }
     await fakePortal.login()
     await overview.isLoaded()
-    assert.equal(await overview.getUser(), 'User rabbit_idp_user')
+    assert.equal(await overview.getUser(), 'User ' + username)
   })
 
   after(async function () {

selenium/test/oauth/with-idp-initiated/unauthorized.js

@@ -9,13 +9,18 @@ const FakePortalPage = require('../../pageobjects/FakePortalPage')
 describe('A user who accesses the /login URL with a token without scopes for the management UI', function () {
   let driver
   let captureScreen
-
+  let username
+  let password
+
   before(async function () {
     driver = buildDriver()
+    username = process.env.MGT_UNAUTHORIZED_CLIENT_ID_FOR_IDP_INITIATED || 'producer'
+    password = process.env.MGT_UNAUTHORIZED_CLIENT_SECRET_FOR_IDP_INITIATED || 'producer_secret'
+
     captureScreen = captureScreensFor(driver, __filename)
     fakePortal = new FakePortalPage(driver)
     homePage = new SSOHomePage(driver)
-    await fakePortal.goToHome('producer', 'producer_secret')
+    await fakePortal.goToHome(username, password)
     if (!await fakePortal.isLoaded()) {
       throw new Error('Failed to load fakePortal')
     }