What is the difference between branch coverage and statement coverage

In most cases, code coverage system gathers information about the running program. Statement Coverage is a white box testing technique in which all the executable statements in the source code are executed at least once.

It is used for calculation of the number of statements in source code which have been executed. The main purpose of Statement Coverage is to cover all the possible paths, lines and statements in source code. In White Box Testing , the tester is concentrating on how the software works. In other words, the tester will be concentrating on the internal working of source code concerning control flow graphs or flow charts.

Generally in any software, if we look at the source code, there will be a wide variety of elements like operators, functions, looping, exceptional handlers, etc. Based on the input to the program, some of the code statements may not be executed. Scenario to calculate Statement Coverage for given source code. Here we are taking two different scenarios to check the percentage of statement coverage for each scenario. Decision Coverage is a white box testing technique which reports the true or false outcomes of each boolean expression of the source code.

The goal of decision coverage testing is to cover and validate all the accessible source code by checking and ensuring that each branch of every possible decision point is executed at least once. In this coverage, expressions can sometimes get complicated. Notify me of follow-up comments by email. Notify me of new posts by email. Skip to content.

Branch Coverage In a flow graph, an arrow represents edges and counting a statement as a node, where two nodes are connected with an edge. Tags: branch coverage , Difference between Statement Coverage and Branch Coverage , practical , software testing , Statement coverage , Testing.

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