Happiest Minds Technologies Senior Test Engineer Interview Questions, Process, and Tips

Q1. DSA Programming questions
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Q2. Selenium related questions
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Gfg medium question of sorting tuples

Q1. Detailed project discussion
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Q2. Embedded protocols knowledge check
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Q3. Python class design for selenium test class
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Python class design for Selenium test class involves creating a class with methods to interact with web elements and perform test actions.
• Create a class for the test case with setup and teardown methods

• Use instance variables to store web element locators

• Implement test methods to perform actions like clicking, entering text, verifying text, etc.

• Use Selenium WebDriver to interact with the browser and web elements
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Q4. MQTT test framework design from scratch
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Designing an MQTT test framework from scratch
• Understand the requirements for testing MQTT protocol

• Choose a programming language for implementation

• Design test cases for different scenarios

• Implement message publishing and subscribing functionalities

• Include error handling mechanisms

• Consider scalability and performance testing
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Q5. Anonymous aptitude
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There are 2 rounds of Coding tests mostly covered with Java programs and selenium scripts,

Q1. How to read data from excel
Ans. 
To read data from Excel, we can use libraries like Apache POI or Openpyxl.
• Use Apache POI library in Java to read Excel files

• Use Openpyxl library in Python to read Excel files

• Identify the Excel file path and create a FileInputStream object

• Create an instance of Workbook class and load the Excel file

• Access the desired sheet and iterate through rows and columns to read data
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