mirror of https://github.com/ARMmbed/mbed-os.git
102 lines
2.5 KiB
C++
102 lines
2.5 KiB
C++
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/* mbed Microcontroller Library
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* Copyright (c) 2017 ARM Limited
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "mbed.h"
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#include "greentea-client/test_env.h"
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#include "utest/utest.h"
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#include "unity/unity.h"
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using utest::v1::Case;
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class InstanceTest {
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public:
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InstanceTest()
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{
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_instance_counter++;
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}
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static int get_instance_counter()
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{
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return _instance_counter;
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}
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private:
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static int _instance_counter;
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};
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int InstanceTest::_instance_counter = 0;
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SingletonPtr<InstanceTest> singleton;
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/** Test SingletonPtr lazy initialization
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*
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* Given a global singleton of type SingletonPtr<InstanceTest>
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* When before first singleton use
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* Then underneath object is yet not created
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*/
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void test_lazy_initialization()
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{
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TEST_ASSERT_MESSAGE(InstanceTest::get_instance_counter() == 0, "Initialized before first use!!!");
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}
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/** Test SingletonPtr single instance
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*
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* Given a singleton of type SingletonPtr<InstanceTest>
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*
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* When after first singleton use
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* Then underneath object was created exactly once
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*
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* When after second singleton use
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* Then underneath object was created exactly once
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* and both (ref1 and ref2) are references to same instance
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*
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*/
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void test_single_instance()
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{
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InstanceTest *ref1 = singleton.get();
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TEST_ASSERT_NOT_NULL(ref1);
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TEST_ASSERT_EQUAL_INT(1, InstanceTest::get_instance_counter());
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InstanceTest *ref2 = singleton.get();
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TEST_ASSERT_NOT_NULL(ref2);
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TEST_ASSERT_EQUAL_INT(1, InstanceTest::get_instance_counter());
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// same instance
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TEST_ASSERT_EQUAL_PTR(ref1, ref2);
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}
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utest::v1::status_t test_setup(const size_t number_of_cases)
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{
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GREENTEA_SETUP(10, "default_auto");
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return utest::v1::verbose_test_setup_handler(number_of_cases);
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}
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Case cases[] = {
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Case("Test lazy initialization", test_lazy_initialization),
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Case("Test single instance", test_single_instance),
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};
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utest::v1::Specification specification(test_setup, cases);
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int main()
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{
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return !utest::v1::Harness::run(specification);
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}
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