Code Coverage
A measure used to display the degree in which the source code of a program is tested by a test set.
Good test coverage
Test code coverage
It will create additional test cases to increase coverage and it also helps to find areas of a program not exercised by a set of test cases.
It also help in determining a quantitative measure of code coverage, which is indirectly measure the quality of the application or product.
Fault injection
-->Exhaust all outcomes of code decision.
-->Error handling
-->Stress testing
-->Fuzzing
Example:
Rule: User must input number between 2 & 7
Action: User input fault injection value 9
Output: Error condition
Test coverage
It measures the amount of testing performed by a set of tests.Whenever we can count test items and can tell whether or not each of those items has been tested.Then we can measure this known as test coverage.
coverage = (No of coverage items executed / Total number of coverage items) x 100
Oracle (Test pass or fail?)
-->A True Oracle
-->Heuristic Oracle
-->Sampling Oracle
-->Consistent Oracle