Stub data tables

The purpose of a stub data table is to supply stub routines with data. Stub data tables define the output behavior of a stubbed method in response to certain inputs. With the stub data table, you simulate the stubbed class by specifying the actual input and return values for each stubbed method.

In many ways stub data tables are very similar to test data tables, but there are several differences.

• Inputs and outputs. Whereas test data tables define the input and expected output values that drive the test, stub data tables define the actual output values that are the result of particular input values. As such, stub data tables can be used to drive predictable behavior on the part of the stub.

• Sets and ranges. With test data tables, sets and ranges can be used for the input values, expected output values, and return values. With stub data tables, sets and ranges can only be used for input values.

• Exceptions. In test data tables, you specify the type of an exception, for example "java.lang.RuntimeException", to check that the test will throw an exception of that type. In stub data tables, you specify a behavior that will throw an exception by writing the actual expression, not just the type of the expression, for example "new java.lang.RuntimeException("Outchhhh").

 

Related concepts

Stub behavior
Test data tables

 

Related tasks

Creating stubs for Java components
Creating stubs for session beans
Editing stubs in a test suite