It depends on your CI/CD pipeline. I tend to have one setup that will just run the suite of tests and check ins to your features branch triggers a build. Then a developer can verify the test pass during the PR. The reviewer should still pull the code down if it is more than a one line code change to validate things have been accounted for.
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Does it mean you have to pull the PR branch to test the code yourself?
It depends on your CI/CD pipeline. I tend to have one setup that will just run the suite of tests and check ins to your features branch triggers a build. Then a developer can verify the test pass during the PR. The reviewer should still pull the code down if it is more than a one line code change to validate things have been accounted for.