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Fork of OmniWheels by Gustav Atmel

mbed-os/TESTS/mbed_platform/SingletonPtr/main.cpp@2:798925c9e4a8, 2018-05-01 (annotated)

Committer:
gustavatmel
Date:
Tue May 01 15:55:34 2018 +0000
Revision:
2:798925c9e4a8
Parent:
1:9c5af431a1f1 
bluetooth

Who changed what in which revision?

UserRevisionLine numberNew contents of line
gustavatmel 1:9c5af431a1f1 1 /* mbed Microcontroller Library
gustavatmel 1:9c5af431a1f1 2 * Copyright (c) 2017 ARM Limited
gustavatmel 1:9c5af431a1f1 3 *
gustavatmel 1:9c5af431a1f1 4 * Licensed under the Apache License, Version 2.0 (the "License");
gustavatmel 1:9c5af431a1f1 5 * you may not use this file except in compliance with the License.
gustavatmel 1:9c5af431a1f1 6 * You may obtain a copy of the License at
gustavatmel 1:9c5af431a1f1 7 *
gustavatmel 1:9c5af431a1f1 8 * http://www.apache.org/licenses/LICENSE-2.0
gustavatmel 1:9c5af431a1f1 9 *
gustavatmel 1:9c5af431a1f1 10 * Unless required by applicable law or agreed to in writing, software
gustavatmel 1:9c5af431a1f1 11 * distributed under the License is distributed on an "AS IS" BASIS,
gustavatmel 1:9c5af431a1f1 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
gustavatmel 1:9c5af431a1f1 13 * See the License for the specific language governing permissions and
gustavatmel 1:9c5af431a1f1 14 * limitations under the License.
gustavatmel 1:9c5af431a1f1 15 */
gustavatmel 1:9c5af431a1f1 16 #include "mbed.h"
gustavatmel 1:9c5af431a1f1 17 #include "greentea-client/test_env.h"
gustavatmel 1:9c5af431a1f1 18 #include "utest/utest.h"
gustavatmel 1:9c5af431a1f1 19 #include "unity/unity.h"
gustavatmel 1:9c5af431a1f1 20
gustavatmel 1:9c5af431a1f1 21 using utest::v1::Case;
gustavatmel 1:9c5af431a1f1 22
gustavatmel 1:9c5af431a1f1 23
gustavatmel 1:9c5af431a1f1 24 class InstanceTest {
gustavatmel 1:9c5af431a1f1 25 public:
gustavatmel 1:9c5af431a1f1 26 InstanceTest()
gustavatmel 1:9c5af431a1f1 27 {
gustavatmel 1:9c5af431a1f1 28 _instance_counter++;
gustavatmel 1:9c5af431a1f1 29 }
gustavatmel 1:9c5af431a1f1 30
gustavatmel 1:9c5af431a1f1 31 static int get_instance_counter()
gustavatmel 1:9c5af431a1f1 32 {
gustavatmel 1:9c5af431a1f1 33 return _instance_counter;
gustavatmel 1:9c5af431a1f1 34 }
gustavatmel 1:9c5af431a1f1 35
gustavatmel 1:9c5af431a1f1 36 private:
gustavatmel 1:9c5af431a1f1 37 static int _instance_counter;
gustavatmel 1:9c5af431a1f1 38 };
gustavatmel 1:9c5af431a1f1 39
gustavatmel 1:9c5af431a1f1 40 int InstanceTest::_instance_counter = 0;
gustavatmel 1:9c5af431a1f1 41
gustavatmel 1:9c5af431a1f1 42
gustavatmel 1:9c5af431a1f1 43 SingletonPtr<InstanceTest> singleton;
gustavatmel 1:9c5af431a1f1 44
gustavatmel 1:9c5af431a1f1 45
gustavatmel 1:9c5af431a1f1 46 /** Test SingletonPtr lazy initialization
gustavatmel 1:9c5af431a1f1 47 *
gustavatmel 1:9c5af431a1f1 48 * Given a global singleton of type SingletonPtr<InstanceTest>
gustavatmel 1:9c5af431a1f1 49 * When before first singleton use
gustavatmel 1:9c5af431a1f1 50 * Then underneath object is yet not created
gustavatmel 1:9c5af431a1f1 51 */
gustavatmel 1:9c5af431a1f1 52 void test_lazy_initialization()
gustavatmel 1:9c5af431a1f1 53 {
gustavatmel 1:9c5af431a1f1 54 TEST_ASSERT_MESSAGE(InstanceTest::get_instance_counter() == 0, "Initialized before first use!!!");
gustavatmel 1:9c5af431a1f1 55 }
gustavatmel 1:9c5af431a1f1 56
gustavatmel 1:9c5af431a1f1 57 /** Test SingletonPtr single instance
gustavatmel 1:9c5af431a1f1 58 *
gustavatmel 1:9c5af431a1f1 59 * Given a singleton of type SingletonPtr<InstanceTest>
gustavatmel 1:9c5af431a1f1 60 *
gustavatmel 1:9c5af431a1f1 61 * When after first singleton use
gustavatmel 1:9c5af431a1f1 62 * Then underneath object was created exactly once
gustavatmel 1:9c5af431a1f1 63 *
gustavatmel 1:9c5af431a1f1 64 * When after second singleton use
gustavatmel 1:9c5af431a1f1 65 * Then underneath object was created exactly once
gustavatmel 1:9c5af431a1f1 66 * and both (ref1 and ref2) are references to same instance
gustavatmel 1:9c5af431a1f1 67 *
gustavatmel 1:9c5af431a1f1 68 */
gustavatmel 1:9c5af431a1f1 69 void test_single_instance()
gustavatmel 1:9c5af431a1f1 70 {
gustavatmel 1:9c5af431a1f1 71 InstanceTest *ref1 = singleton.get();
gustavatmel 1:9c5af431a1f1 72 TEST_ASSERT_NOT_NULL(ref1);
gustavatmel 1:9c5af431a1f1 73
gustavatmel 1:9c5af431a1f1 74 TEST_ASSERT_EQUAL_INT(1, InstanceTest::get_instance_counter());
gustavatmel 1:9c5af431a1f1 75
gustavatmel 1:9c5af431a1f1 76 InstanceTest *ref2 = singleton.get();
gustavatmel 1:9c5af431a1f1 77 TEST_ASSERT_NOT_NULL(ref2);
gustavatmel 1:9c5af431a1f1 78
gustavatmel 1:9c5af431a1f1 79 TEST_ASSERT_EQUAL_INT(1, InstanceTest::get_instance_counter());
gustavatmel 1:9c5af431a1f1 80
gustavatmel 1:9c5af431a1f1 81 // same instance
gustavatmel 1:9c5af431a1f1 82 TEST_ASSERT_EQUAL_PTR(ref1, ref2);
gustavatmel 1:9c5af431a1f1 83 }
gustavatmel 1:9c5af431a1f1 84
gustavatmel 1:9c5af431a1f1 85 utest::v1::status_t test_setup(const size_t number_of_cases)
gustavatmel 1:9c5af431a1f1 86 {
gustavatmel 1:9c5af431a1f1 87 GREENTEA_SETUP(10, "default_auto");
gustavatmel 1:9c5af431a1f1 88 return utest::v1::verbose_test_setup_handler(number_of_cases);
gustavatmel 1:9c5af431a1f1 89 }
gustavatmel 1:9c5af431a1f1 90
gustavatmel 1:9c5af431a1f1 91 Case cases[] = {
gustavatmel 1:9c5af431a1f1 92 Case("Test lazy initialization", test_lazy_initialization),
gustavatmel 1:9c5af431a1f1 93 Case("Test single instance", test_single_instance),
gustavatmel 1:9c5af431a1f1 94 };
gustavatmel 1:9c5af431a1f1 95
gustavatmel 1:9c5af431a1f1 96 utest::v1::Specification specification(test_setup, cases);
gustavatmel 1:9c5af431a1f1 97
gustavatmel 1:9c5af431a1f1 98 int main()
gustavatmel 1:9c5af431a1f1 99 {
gustavatmel 1:9c5af431a1f1 100 return !utest::v1::Harness::run(specification);
gustavatmel 1:9c5af431a1f1 101 }