+test_expect_success '%x00 shows NUL' '
+ echo >expect commit f58db70b055c5718631e5c61528b28b12090cdea &&
+ echo >>expect fooQbar &&
+ git rev-list -1 --format=foo%x00bar HEAD >actual.nul &&
+ nul_to_q <actual.nul >actual &&
+ test_cmp expect actual
+'
+