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#include <errno.h>
#include <limits.h>
#include <cmocka.h>
#include <stdlib.h>
void mock_errno_function(void);
void mock_function_call_times(size_t times, int expectedValue);
void mock_errno_function(void)
{
mock_errno();
}
void mock_function_call_times(size_t times, int expectedValue)
{
size_t i;
for (i = 0u; i < times; ++i)
{
errno = 0;
mock_errno_function();
assert_int_equal(errno, expectedValue);
}
}
static void test_will_set_errno_maybe_for_no_calls(void **state)
{
(void) state;
will_set_errno_maybe(mock_errno_function, -3)
}
static void test_will_set_errno_maybe_for_one_mock_call(void **state)
{
int value;
(void) state;
value = rand();
will_set_errno_maybe(mock_errno_function, value);
mock_function_call_times(1u, value);
}
static void test_will_set_errno_maybe_for_more_than_one_call(void **state)
{
int value;
size_t numberOfCalls;
(void)state;
value = rand();
numberOfCalls = (size_t) ((rand()) % 20 + 2);
will_set_errno_maybe(mock_errno_function, value);
mock_function_call_times(numberOfCalls, value);
}
static void test_will_set_errno_always_for_one_mock_call(void **state)
{
int value;
(void) state;
value = rand();
will_set_errno_always(mock_errno_function, value);
mock_function_call_times(1u, value);
}
static void test_will_set_errno_always_for_more_than_one_call(void **state)
{
int value;
size_t numberOfCalls;
(void)state;
value = rand();
numberOfCalls = (size_t) ((rand()) % 20 + 2);
will_set_errno_always(mock_errno_function, value);
mock_function_call_times(numberOfCalls, value);
}
static void test_set_errno(void **state)
{
intmax_t value;
(void)state; /* unused */
value = rand();
will_set_errno(mock_errno_function, value);
mock_errno_function();
assert_int_equal(errno, value);
}
int main(int argc, char **argv) {
const struct CMUnitTest alloc_tests[] = {
cmocka_unit_test(test_will_set_errno_maybe_for_no_calls),
cmocka_unit_test(test_will_set_errno_maybe_for_one_mock_call),
cmocka_unit_test(test_will_set_errno_maybe_for_more_than_one_call),
cmocka_unit_test(test_will_set_errno_always_for_one_mock_call),
cmocka_unit_test(test_will_set_errno_always_for_more_than_one_call),
cmocka_unit_test(test_set_errno),
};
(void)argc;
(void)argv;
return cmocka_run_group_tests(alloc_tests, NULL, NULL);
}
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