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Path Testing


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What is Path Testing?

Path Testing is a structural testing method based on the source code or algorithm and NOT based on the specifications. It can be applied at different levels of granularity.

Path Testing Assumptions:

  • The Specifications are Accurate

  • The Data is defined and accessed properly

  • There are no defects that exist in the system other than those that affect control flow

Path Testing Techniques:

  • Control Flow Graph (CFG) - The Program is converted into Flow graphs by representing the code into nodes, regions and edges.

  • Decision to Decision path (D-D) - The CFG can be broken into various Decision to Decision paths and then collapsed into individual nodes.

  • Independent (basis) paths - Independent path is a path through a DD-path graph which cannot be reproduced from other paths by other methods.

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