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Increase test coverage for cryb_mpi_add_abs().

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This commit is contained in:
Dag-Erling Smørgrav 2017-02-19 17:29:07 +01:00
parent f6905c8edb
commit 01ffa275ad
1 changed files with 119 additions and 9 deletions
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128
t/t_mpi.c
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@ -1080,10 +1080,10 @@ static struct t_add_case {
},
{
"complex carry, "
"0xffffffffffffffff + 0x0100000001 == 0x010000000100000000",
{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, }, 64, 0,
{ 0x01, 0x00, 0x00, 0x00, 0x01, }, 33, 0,
{ 0x01, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, }, 65, 0,
"0x0100000000ffffffff + 0x01 == 0x010000000100000000",
{ 0x01, 0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0xff, }, 64, 0,
{ 0x01, }, 1, 0,
{ 0x01, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, }, 64, 0,
},
};
@ -1133,16 +1133,41 @@ t_mpi_add(char **desc CRYB_UNUSED, void *arg CRYB_UNUSED)
}
/*
* As above, but allocation will fail
* As above, but first allocation will fail
*/
static int
t_mpi_add_fail(char **desc CRYB_UNUSED, void *arg CRYB_UNUSED)
t_mpi_add_fail1(char **desc CRYB_UNUSED, void *arg CRYB_UNUSED)
{
cryb_mpi a = CRYB_MPI_ZERO, b = CRYB_MPI_ZERO, e = CRYB_MPI_ZERO;
cryb_mpi x = CRYB_MPI_ZERO;
int ret = 1;
mpi_load(&a, large_v, sizeof large_v);
mpi_set(&b, 0x19700101);
mpi_set(&x, 0x20140901);
mpi_set(&e, 0x20140901);
++t_malloc_fail;
ret &= t_compare_i(-1, mpi_add_abs(&x, &a, &b));
--t_malloc_fail;
ret &= t_compare_mpi(&e, &x);
mpi_destroy(&a);
mpi_destroy(&b);
mpi_destroy(&e);
mpi_destroy(&x);
return (ret);
}
/*
* As above, but second allocation will fail
*/
static int
t_mpi_add_fail2(char **desc CRYB_UNUSED, void *arg CRYB_UNUSED)
{
cryb_mpi a = CRYB_MPI_ZERO, b = CRYB_MPI_ZERO, e = CRYB_MPI_ZERO;
cryb_mpi x = CRYB_MPI_ZERO;
int ret = 1;
mpi_set(&a, 0x19700101);
mpi_load(&b, large_v, sizeof large_v);
mpi_set(&x, 0x20140901);
mpi_set(&e, 0x20140901);
@ -1199,6 +1224,26 @@ t_mpi_add_b_to_a_fail(char **desc CRYB_UNUSED, void *arg CRYB_UNUSED)
return (ret);
}
/*
* Target is the first operand and both operands are equal
*/
static int
t_mpi_add_b_to_a_equal(char **desc CRYB_UNUSED, void *arg CRYB_UNUSED)
{
cryb_mpi a = CRYB_MPI_ZERO, b = CRYB_MPI_ZERO, e = CRYB_MPI_ZERO;
int ret = 1;
mpi_set(&a, 0x19700101);
mpi_set(&b, 0x19700101);
mpi_set(&e, 0x19700101 + 0x19700101);
ret &= t_compare_i(0, mpi_add_abs(&a, &a, &b));
ret &= t_compare_mpi(&e, &a);
mpi_destroy(&a);
mpi_destroy(&b);
mpi_destroy(&e);
return (ret);
}
/*
* Target is the second operand
*/
@ -1241,6 +1286,26 @@ t_mpi_add_a_to_b_fail(char **desc CRYB_UNUSED, void *arg CRYB_UNUSED)
return (ret);
}
/*
* Target is the second operand and both operands are equal
*/
static int
t_mpi_add_a_to_b_equal(char **desc CRYB_UNUSED, void *arg CRYB_UNUSED)
{
cryb_mpi a = CRYB_MPI_ZERO, b = CRYB_MPI_ZERO, e = CRYB_MPI_ZERO;
int ret = 1;
mpi_set(&a, 0x19700101);
mpi_set(&b, 0x19700101);
mpi_set(&e, 0x19700101 + 0x19700101);
ret &= t_compare_i(0, mpi_add_abs(&b, &a, &b));
ret &= t_compare_mpi(&e, &b);
mpi_destroy(&a);
mpi_destroy(&b);
mpi_destroy(&e);
return (ret);
}
/*
* Target is both operands
*/
@ -1319,6 +1384,46 @@ t_mpi_add_a_and_a_fail(char **desc CRYB_UNUSED, void *arg CRYB_UNUSED)
return (ret);
}
/*
* Target is the first operand, second operand is zero
*/
static int
t_mpi_add_zero_to_a(char **desc CRYB_UNUSED, void *arg CRYB_UNUSED)
{
cryb_mpi a = CRYB_MPI_ZERO, b = CRYB_MPI_ZERO, e = CRYB_MPI_ZERO;
int ret = 1;
mpi_set(&a, 0x19700101);
mpi_zero(&b);
mpi_copy(&e, &a);
ret &= t_compare_i(0, mpi_add_abs(&a, &a, &b));
ret &= t_compare_mpi(&e, &a);
mpi_destroy(&a);
mpi_destroy(&b);
mpi_destroy(&e);
return (ret);
}
/*
* Target is the second operand, first operand is zero
*/
static int
t_mpi_add_zero_to_b(char **desc CRYB_UNUSED, void *arg CRYB_UNUSED)
{
cryb_mpi a = CRYB_MPI_ZERO, b = CRYB_MPI_ZERO, e = CRYB_MPI_ZERO;
int ret = 1;
mpi_zero(&a);
mpi_set(&b, 0x20140901);
mpi_copy(&e, &b);
ret &= t_compare_i(0, mpi_add_abs(&b, &a, &b));
ret &= t_compare_mpi(&e, &b);
mpi_destroy(&a);
mpi_destroy(&b);
mpi_destroy(&e);
return (ret);
}
/***************************************************************************
* Subtraction
@ -1518,8 +1623,8 @@ t_mpi_sub_b_from_a(char **desc CRYB_UNUSED, void *arg CRYB_UNUSED)
cryb_mpi a = CRYB_MPI_ZERO, b = CRYB_MPI_ZERO, e = CRYB_MPI_ZERO;
int ret = 1;
mpi_set(&a, 0x19700101);
mpi_set(&b, 0x20140901);
mpi_set(&a, 0x20140901);
mpi_set(&b, 0x19700101);
mpi_set(&e, 0x20140901 - 0x19700101);
ret &= t_compare_i(0, mpi_sub_abs(&a, &a, &b));
ret &= t_compare_mpi(&e, &a);
@ -1747,15 +1852,20 @@ t_prepare(int argc, char *argv[])
for (i = 0; i < sizeof t_add_cases / sizeof t_add_cases[0]; ++i)
t_add_test(t_mpi_add_tc, &t_add_cases[i], t_add_cases[i].desc);
t_add_test(t_mpi_add, NULL, "x = a + b");
t_add_test(t_mpi_add_fail, NULL, "x = a + b (failure)");
t_add_test(t_mpi_add_fail1, NULL, "x = a + b (failure 1)");
t_add_test(t_mpi_add_fail2, NULL, "x = a + b (failure 2)");
t_add_test(t_mpi_add_b_to_a, NULL, "a = a + b");
t_add_test(t_mpi_add_b_to_a_fail, NULL, "a = a + b (failure)");
t_add_test(t_mpi_add_b_to_a_equal, NULL, "a = a + b (a == b)");
t_add_test(t_mpi_add_a_to_b, NULL, "b = a + b");
t_add_test(t_mpi_add_a_to_b_fail, NULL, "b = a + b (failure)");
t_add_test(t_mpi_add_a_to_b_equal, NULL, "b = a + b (a == b)");
t_add_test(t_mpi_add_a_to_a, NULL, "a = a + a");
t_add_test(t_mpi_add_a_to_a_fail, NULL, "a = a + a (failure)");
t_add_test(t_mpi_add_a_and_a, NULL, "b = a + a");
t_add_test(t_mpi_add_a_and_a_fail, NULL, "b = a + a (failure)");
t_add_test(t_mpi_add_zero_to_a, NULL, "a = a + 0");
t_add_test(t_mpi_add_zero_to_b, NULL, "b = 0 + b");
/* subtraction */
for (i = 0; i < sizeof t_sub_cases / sizeof t_sub_cases[0]; ++i)