This question appears in Mumbai University > Software Testing & Quality Assurance Subject

Marks: 5 M

Year: Dec 2013, Dec 2014

Control Flow Testing :

• Control flow testing is a kind of structural testing, which is performed by programmers to test the code written by them.

• The concept is applied to small units of code , such as functions.

• Test cases for control flow testing are derived from the source code, such as program units, rather than from the entire program.

• The main idea in control flow testing is to appropriately select a few paths in a program unit and observe whether or not the selected paths produce the expected outcome.

Limitations of control flow based testing :

• Control flow testing cannot catch all initialization mistakes.

• Specification mistakes are not caught by control flow testing.

• It is unlikely to find missing paths and features if the program and the model on which the tests are based are done by the same person.

• Interface mismatches and mistakes are not caught.

• Studies show that control flow testing catches about 50% of all bugs during unit testing.

• Control flow testing does not verify the correctness of data values “defined” compared to data flow testing.

• It does not focus on the points at which variables receive values and the points at which these values are used.