What is the Purpose of Branch Coverage in Unit Testing?
The main purpose of the Branch Coverage in Unit testing is that the test cases should cover each branch statement inside the coding block or functions block. It is also known as decision coverage.
- Comprehensive Test Coverage: The primary purpose of Branch Coverage in unit testing is to ensure test coverage by targeting each branch statement within code blocks or functions. This is also known as decision coverage. It aims to verify that every possible branch, including conditional and unconditional statements, has been executed at least once during testing.
- Conditional Statements Coverage: Branch Coverage addresses the coverage of conditional statements such as if, if…else, while, for, and do…while statements in the source code. The metric includes these conditional statements in the overall branch coverage calculation for the file.
- Unconditional Statements Coverage: The metric also encompasses the coverage of unconditional statements in the source code, such as printable statements and return statements from functions and methods. These unconditional statements’ coverage contributes to the overall branch coverage for the file.
- Execution of Branch Test Cases: Branch Coverage involves the execution of test cases specifically designed for branch statements. These test cases are executed, and the results are analyzed to ensure that each branch has been exercised.
- Execution with Mock Data: To enhance test scenarios, Branch Coverage may utilize mock data or additional data sets when executing branch test cases. This ensures a more thorough examination of the code’s decision paths.
What is Branch Coverage in Unit Testing?
Unit Testing is the process of writing the test cases for each developed code file. This testing is carried out by developers. Once the coding part is done, the developers will write the test cases to cover each scenario in the developed file. While running the test suites or test files, we can see there are four parts of coverages. They are Branch Coverages, Statement Coverages, Functions Coverages, and Condition Coverages. It includes the percentage covered for each coverage category. In this article, we will explore the concept of Branch Coverage in Unit Testing.
Table of Content
- What is Branch Coverage in Unit Testing?
- What is the Purpose of Branch Coverage in Unit Testing?
- What are Branch Coverage Metrics?
- Example of Branch Coverage in Unit Testing
- Tools Used for Branch Coverage in Unit Testing
- Advantages of Using Branch Coverage in Unit Testing
- Disadvantages of Using Branch Coverage in Unit Testing
- Conclusion