フリー問題

問題文

A team writes tests that exercise one function in isolation, and separately writes tests that start several components together and check that they work as a whole. How is each kind of testing named?

選択肢

1. Checking one function alone is acceptance testing, and starting components together is integration testing.
2. Checking one function alone is unit testing, and starting components together is regression testing.
3. Checking one function alone is acceptance testing, and starting components together is regression testing.
4. Checking one function alone is unit testing, and starting components together is integration testing.