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'''Data-driven testing''' (DDT), also known as '''table-driven testing''' or '''parameterized testing''', is a [[software testing]] technique that uses a table of [[data]] that directs test execution by encoding input, expected output and test-environment settings.<ref>{{cite web |title=golang/go TableDrivenTests |url=https://github.com/golang/go/wiki/TableDrivenTests |website=GitHub |language=en}}</ref><ref>{{cite web |title=JUnit 5 User Guide |url=https://junit.org/junit5/docs/current/user-guide/#writing-tests-parameterized-tests |website=junit.org}}</ref> One advantage of DDT over other testing techniques is relative ease to cover an additional [[test case (software)|test case]] for the [[system under test]] by adding a line to a table instead of having to modify test [[source code]].
Often, a table provides a complete set of stimulus input and expected outputs in each row of the table. Stimulus input values typically cover values that correspond to boundary or partition input spaces.
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