Unit testing
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This document provides an overview of unit testing and guidelines for writing unit tests. It discusses why unit tests are important for catching errors, helping write code, speeding up development, and covering configurations and new team members' code. It defines what a unit test is and what they don't cover. Guidelines provided include automating tests, letting code just pass tests, testing boundaries and randomness, keeping tests at a unit level, and knowing passed tests don't guarantee correctness. It also mentions the XCTest framework and provides a tutorial project and instructions for writing sample unit tests for email and password validation.
![API you may need
#if DEBUG
[NSException raise:@Invalid Email Exception
format:@"email is invalid];
#endif](https://image.slidesharecdn.com/unittesting-140324032436-phpapp02/85/Unit-testing-9-320.jpg)
Unit testing
- 2. Why Test Catch errors Help you write code Speed up your development Cover con鍖gurations Cover new co-workers
- 3. What is a unit test Tests ONE thing Single unit of functionality Small, fast, ISOLATED
- 4. Unit Tests dont cover Performance UI interaction Whole system integration
- 5. Guidelines Testing should be automated and non-interactive Let your code JUST pass the test Remember to test boundary cases, but also remember that its impossible to test every case Provide a random generator when its possible Keep testing at unit level Act as 3rd party class consumer Passed tests dont promise the correctness of code
- 6. XCTest
- 8. Instruction We have 4 tests in this project: testValidateEmail, testSubmit, testIsEmpty, testValidatePassword Ill do the testValidateEmail step by step for you. I have written the tests of testIsEmpty and testSubmit for you. Please implement the logic by yourself. Please write the test and implement the logic for the last test by yourself.
- 9. API you may need #if DEBUG [NSException raise:@Invalid Email Exception format:@"email is invalid]; #endif
- 10. Password requirement length between 6~12 has at least 1 uppercase letter and 1 lowercase letter