Which of the following statements about branch coverage is true?

Question

Options

• AThe minimum number of test cases needed to achieve full branch coverage, is usually lower than
• BIf full branch coverage has been achieved, then all unconditional branches within the code have
• CIf full branch coverage has been achieved, then all combinations of conditions in a decision table
• DExercising at least one of the decision outcomes for all decisions within the code, ensures

• A
  8% (3)
• B
  5% (2)
• C
  3% (1)
• D
  84% (32)

Explanation

Exercising at least one of the decision outcomes for all decisions within the code, ensures achieving full branch coverage, which is a test coverage criterion that requires that all branches in the control flow of the code are executed at least once by the test cases. A branch is a basic block of code that has a single entry point and a single exit point, and a decision is a point in the code where the control flow can take more than one direction, such as an if-then-else statement, a switch-case statement, a loop statement, etc. The decision outcomes are the possible paths that can be taken from a decision, such as the then branch or the else branch, the case branch or the default branch, the loop body or the loop exit, etc.

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