# Subtest: PASSING
    ok 1
    1..1
ok 1 - PASSING
ok 2 - PASSING
ok 3 - PASSING
# Subtest: FAILING
    not ok 1
    #   Failed test at /home/lanx/perl/pm/test_metric.pl line 16.
    #          got: 'a'
    #     expected: 'X'
    1..1
    # Looks like you failed 1 test of 1.
not ok 4 - FAILING
#   Failed test 'FAILING'
#   at /home/lanx/perl/pm/test_metric.pl line 6.
not ok 5 - FAILING
#   Failed test 'FAILING'
#   at /home/lanx/perl/pm/test_metric.pl line 8.
1..5
# Looks like you failed 2 tests of 5.                   <--- Metric