Testing

What is regression testing?

• Testing the software with a large amount of data

• Testing the software to ensure it works on different operating systems

• Testing the software after modifications to ensure existing functionality is not affected

• Testing the software for security vulnerabilities

Which of the following is a testing level that involves testing individual components or modules of a software system?

• System testing

• Acceptance testing

• Integration testing

• Unit testing

What is the purpose of test-driven development (TDD)?

• To ensure that all requirements are documented before writing code

• To automate the testing process using specialized tools

• Write tests before writing the corresponding code to catch errors as early as possible

• Write tests before writing the corresponding code to simulate user interactions with the software system

Which testing technique focuses on testing the internal structure of a software system?

• Black-box testing

• White-box testing

• Gray-box testing

• Regression testing

Which of the following is a characteristic of a good test case?

• It tests multiple functionalities at once

• It relies on random inputs for comprehensive coverage

• It is easy to understand and execute

• It does not require any test data to be prepared

What is Jest?

• A programming language used for writing test cases

• A framework for testing JavaScript code

• A tool for performance testing of web applications

• An automated deployment tool for software systems

Which of the following is NOT a feature of Jest?

• Snapshot testing

• Mocking of functions and modules

• Code coverage reports and analysis

• Cross-browser compatibility testing

What is the purpose of test suites in Jest?

• To organize and group related test cases together

• To define the configuration settings for Jest

• To simulate user interactions with the software system

• To generate code coverage reports

What is a Jest mock function?

• A function that simulates user interactions in the test environment

• A function that allows you to track calls and returned values to a function during testing

• A function that generates random inputs for comprehensive test coverage

• A function that checks if a particular feature is functioning as expected

How can you check if a certain function has been called with specific arguments in Jest?

• toHaveBeenCalledWith

• toBeCalledWith

• toHaveBeenCalled

• expect.any