PTC QA Engineer Interview Questions, Process, and Tips

TDD stands for Test-Driven Development, a software development process where tests are written before the code.

• Tests are written before the actual code implementation

• Code is then written to pass the tests

• Helps in ensuring code quality and functionality

• Promotes writing modular and testable code

Class inheritance is a concept in object-oriented programming where a class inherits attributes and methods from another class.

• Allows a class to inherit properties and behaviors from another class

• Promotes code reusability and reduces redundancy

• Derived class can add new features or override existing ones

• Example: Class 'Car' can inherit from class 'Vehicle' and inherit properties like 'color' and methods like 'drive'

Pytest fixtures are used to set up preconditions for tests, share resources, and reduce code duplication.

• Fixtures help in setting up preconditions for tests, such as creating test data or initializing objects.

• They allow for sharing resources across multiple tests, reducing code duplication.

• Fixtures can be used to simulate real-world scenarios, like setting up a database connection or mocking external services.

• They prov...read more

Oops concepts in C# include inheritance, polymorphism, encapsulation, and abstraction.

• Inheritance allows a class to inherit properties and behavior from another class.

• Polymorphism allows objects to be treated as instances of their parent class.

• Encapsulation hides the internal state of an object and only exposes necessary functionality.

• Abstraction focuses on the essential characteristics of an object while hiding irrele