Improve docs and fix some mistakes on the selenium tests

deps/rabbitmq_management/selenium/README.md

@@ -15,11 +15,9 @@ For instance, all OAuth2 related tests are under `test/oauth`. And under this fo
 we have another subfolder, `tests/oauth/with-uaa` to group all the tests cases which run against UAA as OAuth2 server.
 
 At the moment, there are no smart around discovering all the tests under subfolders. That will come later.
-For now, the command `make run-tests` runs just the test cases under `oauth/with-uaa`. But first, the script `setup.sh` is
-invoked which launches a container running RabbitMQ configured with UAA, and another container running UAA configured with a number of users, permissions, and clients.
+For now, the command `make run-tests` explicitly runs the test cases under `oauth/with-uaa`.
 
-
-# Run single test
+# Get environment ready before running any tests
 
 Before running a test we need to set up its environment by running the command below. It will
 launch RabbitMQ and UAA as a docker containers, and set up UAA with the right users, clients and scopes.  
@@ -27,27 +25,12 @@ launch RabbitMQ and UAA as a docker containers, and set up UAA with the right us
 test/oauth/with-uaa/setup.sh
 ```
 
-**IMPORTANT**: When we combine browser running the local machine and UAA and RabbitMQ is docker it is not
-possible to refer to localhost anymore. Hence we use `local-rabbitmq` and `local-uaa` instead. And we need
-this line into our /etc/hosts:
+**IMPORTANT**: When we run UAA and RabbitMQ in docker and the browser in our local machine, we have to use
+the hostnames aliases `local-rabbitmq` and `local-uaa` which must be declared in our /etc/hosts file.
 ```
 127.0.0.1 local-uaa local-rabbitmq
 ```
 
-And now we can run the test:
-```bash
-RUN_LOCAL=TRUE ./node_modules/.bin/mocha  --timeout 20000 test/oauth/with-uaa/happy-login.js
-```
-
-## Run RabbitMQ from source
-
-If we prefer, we can run RabbitMQ from source. We just kill+rm the `local-rabbitmq` container and launch
-RabbitMQ as follows:
-```bash
-gmake run-broker PLUGINS="rabbitmq_management rabbitmq_auth_backend_oauth2" RABBITMQ_CONFIG_FILE=deps/rabbitmq_management/selenium/test/oauth/with-uaa/rabbitmq.config
-```
-> Run the command from the root of rabbitmq-server checked out folder
-
 
 # Run all tests (WIP)
 
@@ -57,3 +40,31 @@ Chrome browser. This way we can see all the interactions driven by the tests on
 should anything failed, we can see where it failed. To use this mode, we run the tests with the command `RUN_LOCAL=TRUE make run-tests`
 - **Continuous integration way** - We run the tests against a standalone chrome browser which runs in silent mode (no UI) in
 a docker container. To launch the standalone chrome browser we run `make run-chrome` followed by `make run-tests` to run the tests.
+
+Both methods run the tests from a docker container using a docker image that we have to build first by running the following command:
+```
+make init-tests
+```
+
+In summary, if we want to run all tests against our local browser, we have to run these commands:
+```
+test/oauth/with-uaa/setup.sh
+make init-tests
+RUN_LOCAL=TRUE make run-tests
+
+```
+
+# Run single test
+
+If we want to run a single tests rather than all tests under `oauth/with-uaa`, we run a command similar to this one:
+```bash
+RUN_LOCAL=TRUE ./node_modules/.bin/mocha  --timeout 20000 test/oauth/with-uaa/happy-login.js
+```
+
+## Run RabbitMQ from source
+
+If we prefer, we can run RabbitMQ from source rather from a docker container, we launch it as follows:
+```bash
+gmake run-broker PLUGINS="rabbitmq_management rabbitmq_auth_backend_oauth2" RABBITMQ_CONFIG_FILE=deps/rabbitmq_management/selenium/test/oauth/with-uaa/rabbitmq.config
+```
+> Run the command from the root of rabbitmq-server checked out folder

deps/rabbitmq_management/selenium/test/oauth/with-uaa-down/rabbitmq.config

@@ -8,7 +8,7 @@
       {oauth_enable, true},
       {oauth_client_id, "rabbit_client_code"},
       {oauth_client_secret, "rabbit_client_code"},
-      {oauth_provider_url, "http://localhost:8080/uaa"}
+      {oauth_provider_url, "http://local-uaa:8080/uaa"}
   ]},
   {rabbitmq_auth_backend_oauth2, [
     {resource_server_id, <<"rabbitmq">>},

deps/rabbitmq_management/selenium/test/pageobjects/SSOHomePage.js

@@ -5,7 +5,7 @@ var BasePage = require('./BasePage')
 const LOGIN_BUTTON = By.css('div#outer div#login div#login-status button#loginWindow');
 const WARNING = By.css('p.warning')
 
-module.exports = class SSOLoginPage extends BasePage {
+module.exports = class SSOHomePage extends BasePage {
 
   async isLoaded () {
     return this.waitForDisplayed(LOGIN_BUTTON)

deps/rabbitmq_management/selenium/test/pageobjects/UAALoginPage.js

@@ -6,10 +6,10 @@ const FORM = By.css('form');
 const USERNAME = By.css('input[name="username"]')
 const PASSWORD = By.css('input[name="password"]')
 
-module.exports = class UAAHomePage extends BasePage {
+module.exports = class UAALoginPage extends BasePage {
 
   async isLoaded () {
-    return this.waitForDisplayed(FORM)    
+    return this.waitForDisplayed(FORM)
   }
   async login(username, password) {
     await this.isLoaded();