Basis Path Testing for Structural and Integration Testing

Basis path testing is a structural testing technique that identifies test cases based on the flows or logical paths that can be taken through the software. A basis path is a unique path through the software where no iterations are allowed; they're atomic level paths, and all possible paths through the system are linear combinations of them. Basis path testing uses a Cyclomatic metric that measures the complexity of a source code unit by examining the control flow structure. Basis path testing can also be applied to integration testing when software units/components are integrated together. You'll see how the use of the technique quantifies the integration effort involved as well as the design-level complexity.