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#include <assert.h>
#include <malloc.h>
#include <signal.h>
#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
void trick_compiler(int *x);
static void test_abort(void)
{
abort();
}
static void test_segfault(void)
{
raise(SIGSEGV);
}
static void test_leak(void)
{
int *p = malloc(sizeof *p);
trick_compiler(p);
}
static void test_undefined(void)
{
int *p = malloc(1);
printf("%d\n", *p);
}
static void test_undefined_branch(void)
{
int x;
trick_compiler(&x);
if (x)
printf("1\n");
else
printf("0\n");
}
static void test_read_after_free(void)
{
int *p = malloc(sizeof *p);
free(p);
printf("%d\n", *p);
}
static void test_write_after_free(void)
{
int *p = malloc(sizeof *p);
free(p);
printf("%d\n", *p);
}
typedef void (*test_fun)(void);
struct test {
const char *name;
test_fun fun;
};
#define TEST(f) { .name = #f, .fun = test_##f, }
static struct test tests[] = {
TEST(abort),
TEST(segfault),
TEST(leak),
TEST(undefined),
TEST(undefined_branch),
TEST(read_after_free),
TEST(write_after_free),
};
#define ntests (sizeof tests / sizeof *tests)
int main(int argc, char *argv[])
{
int i;
if (argc != 2) {
fprintf(stderr, "Usage: test_helper <test>\n");
exit(1);
}
bool found = false;
for (i = 0; i < ntests; ++i)
if (!strcmp(argv[1], tests[i].name)) {
found = true;
printf("Running test: %s\n", tests[i].name);
tests[i].fun();
break;
}
if (!found) {
fprintf(stderr, "Unable to find test: %s\n", argv[1]);
exit(1);
}
return 0;
}
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