Difference between use case and test case

Use case	Test case
Set of variables, conditions or steps used to define the interaction between a role and a system to attain certain objectives.	Conditions or variables used to define the functionality and behavior of a software
Prepared by business analyst	Prepared by test engineers
Different case can be combined	One at a time
Use case is something that has to be designed	Testcase is something that has to be executed
Describes the flow of events of the software	A document that contains events, action and expected result of the software
Provided to developers	Provided to testers
Managed by diagrams	Managed by function tests
Requires proper document and research	Requires test scripts are required