How Do You Test for Black Box

Decision table testing.All-pairs testing.Equivalence partitioning.Boundary value analysis.Cause–effect graph.Error guessing.State transition testing.Use case testing.

What method of black box testing you have used?

Functional Testing: It is the most commonly used type of black box testing in which the tester focuses on the core functionality, operations, and specifications of the software. Testers perform it by feeding input to the application for getting the desired output. It is usually performed before non-functional testing.

What is black box test coverage?

Black-box testing validates whether the given system conforms to its design and functional specification. … A system with high code coverage is considered to be more thoroughly tested than one with low code coverage, therefore lowering the change of containing a software defect.