A team member wrote a piece of code. IQA is being done by other team member in the same project. What type of testing does he do
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compliance testing
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functional testing
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unit testing
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black box testing
IQA (Independent Quality Assurance) or peer review of code by another team member is a form of unit testing verification - checking individual code units for correctness before integration. Functional testing validates features work as specified, compliance testing checks standards adherence, and black box tests external behavior without seeing code.
When another developer on the same project (rather than the original author) exercises the code to check that individual functions/modules behave correctly, that is still testing at the unit level — just performed independently rather than by the code's author, which is a common quality-assurance practice to reduce bias. It's distinct from functional testing (checking end-to-end features against requirements) or black-box testing (testing without knowledge of internal code), since here the tester is examining the code at the same granular, implementation level it was written at.