all the if – else conditions have been tested with every possible input, then branch coverage is said to be 100%. Similarly, if all branches in the code, i.e.If tests cover all the function calls in code, function coverage is said to be 100%.Let me define the subtypes for the sake of clarity. SubtypesĬoverage is further split into many subtypes – function coverage, branch coverage, condition coverage, loop coverage, statement coverage and parameter value coverage. The intent is, the higher the code coverage, the lower the chance of having undetected software bugs. Think of it as the degree to which the source code of a program is executed when a test suite runs. It reports total number of lines in the code and number of lines executed by tests. This metric aims to measure number of lines covered by the test cases. To begin with, let’s learn about code coverage. The two popular methodologies are code coverage and test coverage. In this post, we’ll learn about two major test measurement methodologies and contrast them to understand which method is better suited to which product/software development method. Optimizing Test Automation | Download White Paper > So, how do you measure test effectiveness? Counting number of lines covered by tests or taking a functional approach and see if all the features are covered. Test measurement allows better product quality Unit testing is a good start, but it is sometimes skewed and is difficult to measure or improve. Thorough testing is what makes a product high quality. Even after following coding standards and methodologies, humans make mistakes, leading to errors and defects in a product.
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