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#include "minunit.h"
#include <dlfcn.h>
typedef int (*lib_function)(const char *data, int count);
char *lib_file = "build/libex29.so";
void *lib = NULL;
int check_function(const char *func_to_run, const char *data, int expected)
{
lib_function func = dlsym(lib, func_to_run);
check(func != NULL, "Did not find %s function in the library %s: %s", func_to_run, lib_file, dlerror());
int rc = func(data, (int)strlen(data));
check(rc == expected, "Function %s return %d for data: %s", func_to_run, rc, data);
return 1;
error:
return 0;
}
char *test_dlopen()
{
lib = dlopen(lib_file, RTLD_NOW);
mu_assert(lib != NULL, "Failed to open the library to test.");
return NULL;
}
char *test_functions()
{
mu_assert(check_function("print_a_message", "Hello", 0), "print_a_message failed.");
mu_assert(check_function("uppercase", "Hello", 0), "uppercase failed.");
mu_assert(check_function("lowercase", "Hello", 0), "lowercase failed.");
return NULL;
}
char *test_failures()
{
mu_assert(check_function("fail_on_purpose", "Hello", 1), "fail_on_purpose should fail.");
return NULL;
}
char *test_dlclose()
{
int rc = dlclose(lib);
mu_assert(rc == 0, "Failed to close lib.");
return NULL;
}
char *all_tests()
{
mu_suite_start();
mu_run_test(test_dlopen);
mu_run_test(test_functions);
mu_run_test(test_failures);
mu_run_test(test_dlclose);
return NULL;
}
RUN_TESTS(all_tests);