Introduction to Unit Testing

Unit Testing




Unit is a smallest program or component in the application. Using Low Level Design (LLD) document, developer verifies following factors in Unit Test.

(a) Statement Coverage:-

Verifying all the statements are participating (or not) at least once during execution time.


(b) Loop Coverage:-

Verifying loops are terminating properly or not


(c) Program Technique Coverage:-

Verifying developers have used right techniques or not to achieve expected performance.


(d) Output Coverage:-

Verify correctness of output value


(e) Cyclomatic Complexity:-

It is a metric to measure number of independent path to perform one operation.

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