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Issue #465 - Enhanced test for more scenarios; fixed some semantic bugs.

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This commit is contained in:
egberts 2016-03-16 10:54:20 -07:00
parent db6fc5ba51
commit ab5ed15044
1 changed files with 75 additions and 14 deletions
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89
tests/unit/test_hookcounts.c
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@ -6,6 +6,8 @@
#include "unicorn_test.h"
#include <inttypes.h>
#define DEBUG 1
#define OK(x) uc_assert_success(x)
volatile int expected_instructions = 0;
@ -29,8 +31,8 @@ static void test_code_hook(uc_engine *uc,
#ifdef DEBUG
printf("instruction at 0x%"PRIx64": ", address);
uint8_t tmp[256];
if (!uc_mem_read(uc, address, tmp, size)) {
uint8_t tmp[256];
uint32_t i;
for (i = 0; i < size; i++) {
@ -75,6 +77,7 @@ static void
test_hook_count(uc_engine *uc,
const uint8_t *code,
int start_offset,
int code_length,
int expected_instructions)
{
@ -92,9 +95,15 @@ test_hook_count(uc_engine *uc,
// write machine code to be emulated to memory
OK(uc_mem_write(uc, address, code, expected_instructions));
#ifdef DEBUG
printf("Address: %8.8lx\n", address);
printf("Start : %8.8lx\n", address + start_offset);
printf("End : %8.8lx\n", address + code_length);
printf("Count : %d\n", expected_instructions);
#endif
OK(uc_emu_start(uc,
address,
address+start_offset,
address+code_length,
0,
expected_instructions));
@ -106,7 +115,23 @@ test_hook_count(uc_engine *uc,
/* Perform fine-grain emulation control of exactly 1 instruction */
static void test_hook_count_1(void **state)
/* of 1-opcode code space*/
static void test_hook_count_1_begin(void **state)
{
uc_engine *uc = *state;
const uint8_t code[] = {
0x41, // inc ECX @0x1000000
};
int code_length = sizeof(code)-1;
int start_offset = 0;
int ins_count = 1;
test_hook_count(uc, code, start_offset, code_length, ins_count);
}
/* Perform fine-grain emulation control of exactly 1 instruction */
static void test_hook_count_1_midpoint(void **state)
{
uc_engine *uc = *state;
const uint8_t code[] = {
@ -116,11 +141,36 @@ static void test_hook_count_1(void **state)
0x41, // inc ECX @0x1000003
0x41, // inc ECX
0x41, // inc ECX
0x42, // inc EDX @0x1000006
0x42, // inc EDX
};
test_hook_count(uc, code, 0, 1);
int code_length = sizeof(code);
int start_offset = code_length/2;
int ins_count = 1;
test_hook_count(uc, code, start_offset, code_length, ins_count);
}
/* Perform fine-grain emulation control of exactly 1 instruction */
static void test_hook_count_1_end(void **state)
{
uc_engine *uc = *state;
const uint8_t code[] = {
0x41, // inc ECX @0x1000000
0x41, // inc ECX
0x41, // inc ECX
0x41, // inc ECX @0x1000003
0x41, // inc ECX
0x41, // inc ECX
0x42, // inc EDX @0x1000006
0x42, // inc EDX
};
int code_length = sizeof(code);
int start_offset = code_length;
int ins_count = 1;
test_hook_count(uc, code, start_offset, code_length, ins_count);
}
@ -128,7 +178,6 @@ static void test_hook_count_1(void **state)
/* varied instruction steps. */
static void test_hook_count_range(void **state)
{
int i;
uc_engine *uc = *state;
const uint8_t code[] = {
0x41, // inc ECX @0x1000000
@ -140,9 +189,14 @@ static void test_hook_count_range(void **state)
0x42, // inc EDX @0x1000006
0x42, // inc EDX
};
for (i = 2; i < 7; i++)
int code_length = sizeof(code);
int start_offset;
int ins_count = 2;
for (start_offset = 2; start_offset < (code_length - ins_count); start_offset++)
{
test_hook_count(uc, code, 1, i);
printf("Iteration %d\n", start_offset);
test_hook_count(uc, code, start_offset, code_length, ins_count);
}
}
@ -157,11 +211,14 @@ static void test_hook_count_end(void **state)
0x41, // inc ECX @0x1000003
0x41, // inc ECX
0x41, // inc ECX
0x42, // inc EDX @0x1000006
0x42, // inc EDX
};
test_hook_count(uc, code, sizeof(code)-1, 1);
int code_length = sizeof(code);
int ins_count = 3;
int start_offset = sizeof(code) - ins_count;
test_hook_count(uc, code, start_offset, code_length, ins_count);
}
@ -175,19 +232,23 @@ static void test_hook_count_midpoint(void **state)
0x41, // inc ECX @0x1000003
0x41, // inc ECX
0x41, // inc ECX
0x42, // inc EDX @0x1000006
0x42, // inc EDX
};
test_hook_count(uc, code, sizeof(code)/2, 2);
test_hook_count(uc, code, 2, sizeof(code)-2);
int code_length = sizeof(code);
int ins_count = 3;
int start_offset = 2;
test_hook_count(uc, code, start_offset, code_length, ins_count);
}
int main(void)
{
const struct CMUnitTest tests[] = {
cmocka_unit_test_setup_teardown(test_hook_count_1, setup32, teardown),
cmocka_unit_test_setup_teardown(test_hook_count_1_begin, setup32, teardown),
cmocka_unit_test_setup_teardown(test_hook_count_1_midpoint, setup32, teardown),
cmocka_unit_test_setup_teardown(test_hook_count_1_end, setup32, teardown),
cmocka_unit_test_setup_teardown(test_hook_count_range, setup32, teardown),
cmocka_unit_test_setup_teardown(test_hook_count_midpoint, setup32, teardown),
cmocka_unit_test_setup_teardown(test_hook_count_end, setup32, teardown),