RemoteWebDriver vs AppiumDriver vs AndroidDriver vs IOSDriver

RemoteWebDriver: This driver class comes directly from the upstream Selenium project. This is a pretty generic driver where initializing the driver means making network requests to a Selenium hub to start a driver session. Since Appium operates on the client-server model, Appium uses this to initialize a driver session. However, directly using the RemoteWebDriver is not recommended since there are other drivers available that offer additional features or convenience functions.

AppiumDriver: This driver class inherits from the RemoteWebDriver class, but it adds in additional functions that are useful in the context of a mobile automation test through the Appium server.

AndroidDriver: This driver class inherits from AppiumDriver, but it adds in additional functions that are useful in the context of a mobile automation test on Android devices through Appium. Only use this driver class if you want to start a test on an Android device or Android emulator.

IOSDriver: This driver class inherits from AppiumDriver, but it adds in additional functions that are useful in the context of a mobile automation test on iOS devices through Appium. Only use this driver class if you want to start a test on an iOS device or iOS emulator.

As you can see, the drivers and their names tie in closely with what they do. When it comes to initializing a driver, only use the Android or IOS drivers.

Interview question | Page Factory | Lazy loading

Here is the interview question:

As per "Page Factory", all the elements will be initialized at the time of page load.
But in dynamic applications how page factory works?
Ex: Assure a drop down content ( options)  loads on click of the respected select box, how can you implement page factory for this?, as page factory initializes elements at the time of page load only.

Answer:
Lazy load concept.

AjaxElementLocatorFactory is a lazy load concept in Page Factory pattern to identify WebElements only when they are used in any operation
i.e. a timeOut for a WebElement can be assigned to the Object page class with the help of AjaxElementLocatorFactory.

Syntax : ( similer to plain "Page Factory init elemnts"  method )

PageFactory.initElements(new c(driver, 30), this);

If element not found in 30 secs, NoSuchElemementException throws.

happy coding.

query HTML String using jsoup

import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.net.URL;
import java.net.URLConnection;
import java.text.DecimalFormat;
import java.util.Random;
import java.util.concurrent.ThreadLocalRandom;

import org.apache.commons.lang.RandomStringUtils;
import org.joda.time.LocalDate;
import org.joda.time.format.DateTimeFormat;
import org.joda.time.format.DateTimeFormatter;
import org.jsoup.Jsoup;
import org.jsoup.nodes.Document;
import org.jsoup.nodes.Element;
import org.jsoup.select.Elements;

Public Class Test

{

public void m1(){

try {

URL myUrl = new URL("https://www.hello.com/abc/abo.php");

URLConnection yc = myUrl.openConnection();

BufferedReader in = new BufferedReader(new InputStreamReader(yc.getInputStream(), "UTF-8"));

String inputLine;

StringBuilder a = new StringBuilder();

while ((inputLine = in.readLine()) != null)

a.append(inputLine);

in.close();

String str1 = a.toString();

Document parsedHtmlFragment = Jsoup.parse(str1);

Elements matchingLIs = parsedHtmlFragment.select("#ID");

for (Element matchingLI : matchingLIs) {

cGuid = matchingLI.text();

}

} catch (Exception e) {

// TODO: handle exception

} // TODO Auto-generated method stub

}

Fiddler : App load testing at each layer

How to capture HTTPS traffic in Fiddler

Download Fiddler software: https://www.telerik.com/download/fiddler

Logo:






The software looks like:

No Configuration required to capture Web Requests in Fiddler.

Every browser Requests are captured by default.

BUT:
By default Fiddler doesn’t show the content of Web requests made to HTTPS Url (Secure site) because it's encrypted. Perform following steps if you want to see HTTPS Traffic.

- Launch Fiddler
- Go to Tools > Fiddler Options > HTTPS > Check [Decrypt Https Traffic Option]
- Once prompted accept certificate generated by Fiddler

To view compressed response in fiddler perform following steps.

- Click on the web request entry on left pane
- Click on the Inspector Tab > Click Transformer tab from bottom panel
- Click on transformer tab and select No compression option and then click Raw tab

Java Program : write a method to check if it is well formed expression. Eg: {[()]}

This question was asked in an interview that I found interesting.

Here you go.

I know, There are other ways to do it better.

                Map<Character, Character> exprssionMap = new HashMap<>();
exprssionMap.put('{', '}');
exprssionMap.put('[', ']');
exprssionMap.put('(', ')');

String inputExpression = "{[({{)}}]}";
int expressionLengh = inputExpression.length();
if (expressionLengh % 2 == 1) {
System.out.println("malformed Expression; Size of the Expression is not even                                           number");
} else {
for (int i = 0; i < expressionLengh / 2; i++) {
if (!exprssionMap.get(inputExpression.charAt(i))
.equals(inputExpression.charAt(expressionLengh - 1 - i))) {
System.out.println(
"Matching expression not found for: " +                                                                                                    inputExpression.charAt(i) + "; index:" + i);
}
}
}

Happy Coding.

Selenium Grid -> Get Node Ip address

public  void getNodeIpAddress(){
        try {
            URL url = new URL("http://hub-ip:4444//grid/api/testsession?session="+((RemoteWebDriver) driver).getSessionId().toString());
            BasicHttpEntityEnclosingRequest request = new BasicHttpEntityEnclosingRequest("POST", url.toExternalForm());
            DefaultHttpClient client = new DefaultHttpClient();
            HttpHost host = new HttpHost(url.getHost(), url.getPort());
            HttpResponse response = client.execute(host, request);           
            String responseBody=EntityUtils.toString(response.getEntity());
            System.out.println(responseBody);
//Here you can find ip addr of the node machine at ProxyId parameter
            //  URL nodeUrl = new URL(object.getString("proxyId"));
            //return nodeUrl.getHost();
        } catch (Exception e){
        }

copied sencences

anything you can do i can do better
i can do anything better than you can do.