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Remove test-case for all-zero

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Signed-off-by: Dave Rodgman <dave.rodgman@arm.com>
This commit is contained in:
Dave Rodgman 2023-04-20 12:28:59 +01:00
parent 880a6b34c2
commit 678e63007c
2 changed files with 7 additions and 20 deletions
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24
tests/suites/test_suite_bignum_core.function
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@ -319,27 +319,17 @@ void mpi_core_clz(int lz, int tz)
} }
mbedtls_mpi_uint x; mbedtls_mpi_uint x;
size_t expected; if ((lz + tz) > 0) {
// some zero bits
// generate x with lz leading zeros and tz trailing zeros, all other bits set. uint32_t s = (sizeof(mbedtls_mpi_uint) * 8 - lz - tz);
if (lz == -1) { x = ((((mbedtls_mpi_uint) 1) << s) - 1) << tz;
// special case: all zero
x = 0;
expected = sizeof(mbedtls_mpi_uint) * 8;
} else { } else {
expected = lz; // all bits set
if ((lz + tz) > 0) { x = ~((mbedtls_mpi_uint) 0);
// some zero bits
uint32_t s = (sizeof(mbedtls_mpi_uint) * 8 - lz - tz);
x = ((((mbedtls_mpi_uint) 1) << s) - 1) << tz;
} else {
// all bits set
x = ~((mbedtls_mpi_uint) 0);
}
} }
size_t n = mbedtls_mpi_core_clz(x); size_t n = mbedtls_mpi_core_clz(x);
TEST_EQUAL(n, expected); TEST_EQUAL(n, lz);
exit: exit:
; ;
} }

3
tests/suites/test_suite_bignum_core.misc.data
View File

@ -494,9 +494,6 @@ mpi_core_fill_random:42:0:-5:0:MBEDTLS_ERR_MPI_BAD_INPUT_DATA
CLZ: 0 0: all ones CLZ: 0 0: all ones
mpi_core_clz:0:0 mpi_core_clz:0:0
CLZ: -1 -1: all zeros
mpi_core_clz:-1:-1
CLZ: 1 0 CLZ: 1 0
mpi_core_clz:1:0 mpi_core_clz:1:0