esp-idf/components/cxx/test_apps/exception/main/test_exception.cpp

220 lines
4.7 KiB
C++

/*
* SPDX-FileCopyrightText: 2021-2022 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
#include <stdexcept>
#include "unity.h"
#include "unity_test_utils.h"
/* Note: When first exception (in system) is thrown this test produces memory leaks report (~300 bytes):
- 8 bytes are allocated by __cxa_get_globals() to keep __cxa_eh_globals
- 16 bytes are allocated by pthread_setspecific() which is called by __cxa_get_globals() to init TLS var for __cxa_eh_globals
- 88 bytes are allocated by pthread_setspecific() to init internal lock
- some more memory...
*/
#if CONFIG_IDF_TARGET_ESP32
#define LEAKS (300)
#elif CONFIG_IDF_TARGET_ESP32S2
#define LEAKS (800)
#elif CONFIG_IDF_TARGET_ESP32C3
#define LEAKS (700)
#else
#error "unknown target in CXX tests, can't set leaks threshold"
#endif
extern "C" void setUp()
{
unity_utils_record_free_mem();
}
extern "C" void tearDown()
{
unity_utils_evaluate_leaks_direct(LEAKS);
}
TEST_CASE("c++ exceptions work", "[cxx] [exceptions]")
{
int thrown_value;
try {
throw 20;
} catch (int e) {
thrown_value = e;
}
TEST_ASSERT_EQUAL(20, thrown_value);
}
TEST_CASE("c++ bool exception", "[cxx] [exceptions]")
{
bool thrown_value = false;
try {
throw true;
} catch (bool e) {
thrown_value = e;
}
TEST_ASSERT_EQUAL(true, thrown_value);
}
TEST_CASE("c++ void exception", "[cxx] [exceptions]")
{
void* thrown_value = 0;
try {
throw (void*) 47;
} catch (void* e) {
thrown_value = e;
}
TEST_ASSERT_EQUAL(47, thrown_value);
}
TEST_CASE("c++ uint64_t exception", "[cxx] [exceptions]")
{
uint64_t thrown_value = 0;
try {
throw (uint64_t) 47;
} catch (uint64_t e) {
thrown_value = e;
}
TEST_ASSERT_EQUAL(47, thrown_value);
}
TEST_CASE("c++ char exception", "[cxx] [exceptions]")
{
char thrown_value = '0';
try {
throw '/';
} catch (char e) {
thrown_value = e;
}
TEST_ASSERT_EQUAL('/', thrown_value);
}
TEST_CASE("c++ wchar exception", "[cxx] [exceptions]")
{
wchar_t thrown_value = 0;
try {
throw (wchar_t) 47;
} catch (wchar_t e) {
thrown_value = e;
}
TEST_ASSERT_EQUAL((wchar_t) 47, thrown_value);
}
TEST_CASE("c++ float exception", "[cxx] [exceptions]")
{
float thrown_value = 0;
try {
throw 23.5f;
} catch (float e) {
thrown_value = e;
}
TEST_ASSERT_EQUAL(23.5, thrown_value);
}
TEST_CASE("c++ double exception", "[cxx] [exceptions]")
{
double thrown_value = 0;
try {
throw 23.5d;
} catch (double e) {
thrown_value = e;
}
TEST_ASSERT_EQUAL(23.5d, thrown_value);
}
TEST_CASE("c++ const char* exception", "[cxx] [exceptions]")
{
const char *thrown_value = 0;
try {
throw "Hi :)";
} catch (const char *e) {
thrown_value = e;
}
TEST_ASSERT_EQUAL_STRING("Hi :)", thrown_value);
}
struct NonExcTypeThrowee {
int value;
public:
NonExcTypeThrowee(int value) : value(value) { }
};
TEST_CASE("c++ any class exception", "[cxx] [exceptions]")
{
int thrown_value = 0;
try {
throw NonExcTypeThrowee(47);
} catch (NonExcTypeThrowee &e) {
thrown_value = e.value;
}
TEST_ASSERT_EQUAL(47, thrown_value);
}
struct ExcTypeThrowee : public std::exception {
int value;
public:
ExcTypeThrowee(int value) : value(value) { }
};
TEST_CASE("c++ std::exception child", "[cxx] [exceptions]")
{
int thrown_value = 0;
try {
throw ExcTypeThrowee(47);
} catch (ExcTypeThrowee &e) {
thrown_value = e.value;
}
TEST_ASSERT_EQUAL(47, thrown_value);
}
TEST_CASE("c++ exceptions emergency pool", "[cxx] [exceptions]")
{
void **p, **pprev = NULL;
int thrown_value = 0;
// throw first exception to ensure that all initial allocations are made
try
{
throw 33;
}
catch (int e)
{
thrown_value = e;
}
TEST_ASSERT_EQUAL(33, thrown_value);
// consume all dynamic memory
while ((p = (void **)malloc(sizeof(void *)))) {
if (pprev) {
*p = pprev;
} else {
*p = NULL;
}
pprev = p;
}
try
{
throw 20;
}
catch (int e)
{
thrown_value = e;
}
#if CONFIG_COMPILER_CXX_EXCEPTIONS_EMG_POOL_SIZE > 0
// free all memory
while (pprev) {
p = (void **)(*pprev);
free(pprev);
pprev = p;
}
TEST_ASSERT_EQUAL(20, thrown_value);
#else
// if emergency pool is disabled we should never get here,
// expect abort() due to lack of memory for new exception
TEST_ASSERT_TRUE(0 == 1);
#endif
}
extern "C" void app_main(void)
{
printf("CXX EXCEPTION TEST\n");
unity_run_menu();
}