White box Testing

White box Testing is just opposite to Black box Testing, when the tester has access to the internal data structures and algorithms.

Now let us know how many types of white box testing are there:

Code coverage - creating tests to satisfy some criteria of code coverage. the test designer can create tests to cause all statements in the program to be executed atleast once.

Mutation testing methods.

Fault injection methods.

Static Testing - white box testing include all static testing.

Code completeness evaluation

White box testing methods can also be used to evaluate the completeness of a test suite that was created with black box testing methods. This allows the software team to examine parts of a system that are rarely tested and ensures that the most important function points have been tested.

Two common forms of code coverage are:

• function coverage which reports on functions executed
• statement coverage which reports on the number of lines executed to complete the test.

They both return a coverage metric, measured as a percentage.

Related Topics:

• mutation testing
• Inspection
• static testing
• function points
• code coverage