Helius Technologies Senior Automation Test Engineer Interview Questions and Answers

Code to count the occurrences of each letter in a string and print the result

• Iterate through each character in the string

• Use a dictionary to store the count of each letter

• Print the count of each letter at the end

Appium server can be started using command line, programmatically in code, or using Appium desktop app.

• Start Appium server using command line by running 'appium' command

• Start Appium server programmatically in code using Appium server programmatically in code using AppiumDriverLocalService class

• Start Appium server using Appium desktop app by launching the app and starting the server

Tests can be run parallel for mobile devices using test automation frameworks like Appium or Espresso.

• Use test automation frameworks like Appium or Espresso to run tests parallel for mobile devices

• Leverage cloud-based testing platforms like Sauce Labs or BrowserStack for parallel testing on multiple devices

• Implement parallel test execution using tools like TestNG or JUnit in combination with Appium or Espresso

• Utilize d...read more

Automating OTP in mobile involves using automation tools to interact with the OTP input field and validate the received OTP.

• Use automation tools like Appium or Espresso to interact with the OTP input field

• Extract the OTP from the message received on the mobile device

• Validate the extracted OTP with the OTP input field

• Handle scenarios where OTP validation fails

Desired capabilities are a set of properties or attributes that define the behavior of a browser or mobile device in Selenium automation testing.

• Desired capabilities are key-value pairs that are used to configure the WebDriver instances in Selenium.

• They can be used to set properties like browser name, version, platform, and other settings.

• For example, setting 'browserName' to 'chrome' will launch the Chrome browser dur

To run tests on iOS or Android devices using Appium, specify the platformName capability in desired capabilities.

• Specify platformName capability as 'iOS' for iOS devices and 'Android' for Android devices

• Include other necessary desired capabilities like deviceName, platformVersion, appPackage, appActivity, etc.

• Example: capabilities.setCapability('platformName', 'iOS');

Setting up automation for iOS devices involves using tools like Appium and Xcode for testing mobile applications.

• Install Xcode on your Mac machine

• Set up Appium for iOS automation

• Connect your iOS device to the Mac machine

• Create test scripts using Appium for iOS apps

• Execute the test scripts on the connected iOS device

Java code to reverse a string with exception handling and waits in Selenium

• Use StringBuilder to reverse the string

• Use try-catch block for exception handling

• Use implicit or explicit waits in Selenium for synchronization

• Example: String originalString = "hello"; StringBuilder reversedString = new StringBuilder(originalString).reverse();

• Example: try { // code that may throw exception } catch (Exception e) { // handle excep

Answers to questions related to automation testing using Selenium

• Overloading is when a method has the same name but different parameters in the same class, while overriding is when a subclass provides its own implementation of a method already defined in its superclass

• Locators in Selenium are used to identify web elements on a web page

• The syntax of xpath locator is //tagname[@attribute='value']

• Methods to write test cas...read more