mirror of
https://github.com/espressif/esp-idf.git
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101 lines
2.2 KiB
C++
101 lines
2.2 KiB
C++
/*
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* SPDX-FileCopyrightText: 2021 Espressif Systems (Shanghai) CO LTD
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include <typeinfo>
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#include "unity.h"
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#ifdef CONFIG_COMPILER_CXX_RTTI
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using namespace std;
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class Base {
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public:
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virtual ~Base() {} ;
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virtual char name() = 0;
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};
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class DerivedA : public Base {
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public:
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char name() override
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{
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return 'A';
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}
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};
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class DerivedB : public Base {
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public:
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char name() override
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{
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return 'B';
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}
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};
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TEST_CASE("unsuccessful dynamic cast on pointer returns nullptr", "[cxx]")
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{
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Base *base = new DerivedA();
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DerivedB *derived = dynamic_cast<DerivedB*>(base);
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TEST_ASSERT_EQUAL(derived, nullptr);
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delete base;
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derived = nullptr;
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}
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TEST_CASE("dynamic cast works", "[cxx]")
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{
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Base *base = new DerivedA();
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DerivedA *derived = dynamic_cast<DerivedA*>(base);
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TEST_ASSERT_EQUAL(derived, base);
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delete base;
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}
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TEST_CASE("typeid of dynamic objects works", "[cxx]")
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{
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Base *base = new DerivedA();
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DerivedA *derived = dynamic_cast<DerivedA*>(base);
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TEST_ASSERT_EQUAL(typeid(*derived).hash_code(), typeid(*base).hash_code());
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TEST_ASSERT_EQUAL(typeid(*derived).hash_code(), typeid(DerivedA).hash_code());
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delete base;
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derived = nullptr;
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}
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int dummy_function1(int arg1, double arg2);
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int dummy_function2(int arg1, double arg2);
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TEST_CASE("typeid of function works", "[cxx]")
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{
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TEST_ASSERT_EQUAL(typeid(dummy_function1).hash_code(), typeid(dummy_function2).hash_code());
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}
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#ifdef CONFIG_COMPILER_CXX_EXCEPTIONS
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TEST_CASE("unsuccessful dynamic cast on reference throws exception", "[cxx]")
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{
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bool thrown = false;
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DerivedA derived_a;
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Base &base = derived_a;
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try {
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DerivedB &derived_b = dynamic_cast<DerivedB&>(base);
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derived_b.name(); // suppress warning
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} catch (bad_cast &e) {
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thrown = true;
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}
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TEST_ASSERT(thrown);
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}
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TEST_CASE("typeid on nullptr throws bad_typeid", "[cxx]")
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{
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Base *base = nullptr;
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size_t hash = 0;
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bool thrown = false;
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try {
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hash = typeid(*base).hash_code();
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} catch (bad_typeid &e) {
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thrown = true;
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}
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TEST_ASSERT_EQUAL(0, hash);
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TEST_ASSERT(thrown);
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}
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#endif // CONFIG_COMPILER_CXX_EXCEPTIONS
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#endif // CONFIG_COMPILER_CXX_RTTI
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