Define Branch Testing. How branch testing is useful.

Branch Testing

This testing is a white box testing technique used to execute all the branches. This testing is used to ensure that all possible branches from each decision point are executed at least once and ensure that all reachable code is executed. It executes individual branches of code. A branch is a route from a conditional statement. For 100% Coverage of branches we need to test all branches in a piece of code, we have to get all possible results from all of the decision statements.

Example:-

Read
  p                 
  // Executable

Read
  q                 
  // Executable

IF
  p > q THEN           //
  Executable

    Print
  "p > q"

//
  Executable

    IF
  p > 10 THEN      // Executable

        Print
  "p > 10"

// Executable

ENDIF

ELSE

    Print
  "p =< q"

// Executable

ENDIF

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