Design test cases to verify a computer program : Introduction to this Section

The video tutorial discusses the importance of testing in software development, focusing on its purposes: describing application functionality, ensuring code stability during changes, and improving code quality. It differentiates between tests and checks, explaining that tests are manual attempts to break the application, while checks are automated validations. The tutorial advises on when to write tests, particularly for growing projects, and highlights the correlation between easily testable code and high-quality code. The video concludes by emphasizing the value of writing tests as a key software skill.

What are the two main purposes of testing as discussed in the video?

• To increase application speed and reduce costs

• To describe application functionality and ensure correctness over time

• To reduce code size and increase complexity

• To enhance user interface and improve design

How does the video differentiate between 'tests' and 'checks'?

• Checks are for user interfaces, tests are for backend code

• Tests are for small applications, checks are for large ones

• Checks are consistent, while tests involve trying to break the application

• Tests are automated, while checks are manual

Why might small applications not require tests according to the video?

• Because they are too simple to fail

• Because they are not expected to change

• Because they are already perfect

• Because they are not used by many people

What is a key reason for writing tests for portfolio apps?

• To make them run faster

• To make them look more complex

• To demonstrate testing skills to potential employers

• To ensure they are never used

What does the ability to easily write tests for code indicate?

• The code is not functional

• The code is outdated

• The code is of high quality and simple to understand

• The code is too complex