Write a short note on unit testing.
Unit tests are tests that typically test a single function call to ensure that the smallest piece of the program is tested. These tests are meant to verify specific functionality without considering other components. Unit tests can be of any size; there is no definite size for a unit test. Generally, these tests are written at the class level.
Why should developers adhere to test-driven development?
With TDD, a developer writes the test before the actual code so that they can test their own code. This test is another piece of code that can validate whether the functionality is working as intended. If any functionality is found to not satisfy the test code, the corresponding unit test fails. This functionality can easily be fixed since you know this is where the problem is. In order to achieve this, we can utilize frameworks such as...