Add a proxy to Quantum tests

Often it is not possible to initiate a connection with remote devices due to company security policies, requiring all requests to pass through a proxy. Unfortunately, using Java, we cannot just tell the driver to connect the same way because the client's network settings are configured (for example in Internet Explorer under Internet Settings). Instead, we need to explicitly tell, in our case the Quantum scenario, to use specific connection settings. If you require user authentication, you also need to provide the credentials.

We can use TestNG Listeners to ensure that the system is made aware of our intent to connect via proxy. Another option, which avoids creating a listener, is to configure an NTLM proxy in the application.properties file.

Add proxy configuration using a listener

Create a new class, such as proxyListener.java.

In that class, override the beforeInitialize method, inserting the proxy values (port and host) via which the connection requests should go, as follows:

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proxyListener

package com.listeners;

public class proxyListener extends QAFWebDriverCommandAdapter {

    @Override

    public void beforeInitialize(Capabilities desiredCapabilities) {

        super.beforeInitialize(desiredCapabilities);

        System.getProperties().put("http.proxyHost","myhttpProxy.corp");
        System.getProperties().put("http.proxyPort","8080");
        System.getProperties().put("https.proxyHost","myHttpsProxy.corp");
        System.getProperties().put("https.proxyPort","8080");
    }
}

If you need authentication, also add the following code to the beforeInitialize method:

        System.getProperties().put("http.proxyUser","username");
        System.getProperties().put("http.proxyPassword","password");
        System.getProperties().put("https.proxyUser","username");
        System.getProperties().put("https.proxyPassword","password");

To have all test scenarios run with the same setting, open the application.properties file in your Quantum project and modify the wd.command.listeners line to add the listener class, depending on the package name you used for your proxyListener. For example:
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```
wd.command.listeners=com.quantum.listerners.PerfectoDriverListener; com.listeners.proxyListener
```
Save and close the file.