add parameterized tests to transformer#3155

Merged

BasilBeirouti merged 3 commits intoaws:masterfrom

jerrypeng7773:more-unit-test-for-transform-step

Jun 3, 2022

Commits on Jun 2, 2022

Commits on Jun 3, 2022

Merge branch 'master' into more-unit-test-for-transform-step
jerrypeng7773
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