`ninja check`
Try changing the last test's 2 to a 1, you will then see:
../src/test/sigcheckcount_tests.cpp(323): error: in "sigcheckcount_tests/test_verifyscript": check metricsRet.nSigChecks == expected_sigchecks has failed [2 != 1]
Failure occurred in a following context:
../src/test/sigcheckcount_tests.cpp:361
*** 1 failure is detected in the test module "Bitcoin Test Suite"