inspiration/ETL/test/smart_ptr.cpp

/*! ========================================================================
** Extended Template and Library Test Suite
** Smart Pointer Template Class Test
**
** Copyright (c) 2002 Robert B. Quattlebaum Jr.
**
** This package is free software; you can redistribute it and/or
** modify it under the terms of the GNU General Public License as
** published by the Free Software Foundation; either version 2 of
** the License, or (at your option) any later version.
**
** This package is distributed in the hope that it will be useful,
** but WITHOUT ANY WARRANTY; without even the implied warranty of
** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
** General Public License for more details.
**
** === N O T E S ===========================================================
**
** ========================================================================= */

#define DEBUGPOINT()

#include <ETL/smart_ptr>
#include <list>
#include <stdio.h>
#include <stdlib.h>
#include <string>
#include <map>

#define NUMBER_OF_OBJECTS	40000
using namespace std;

struct my_test_obj {
    static int instance_count;
    int my_id;
    my_test_obj(int my_id = 0): my_id(my_id)
    {
        instance_count++;
    }

    virtual ~my_test_obj()
    {
        if (instance_count == 0) {
            printf("Error, instance count is going past zero!\n");
        }

        instance_count--;
    }

    bool operator<(const my_test_obj &rhs)const
    {
        return my_id < rhs.my_id;
    }
};

struct my_other_test_obj : public my_test_obj {
    static int instance_count;
    my_other_test_obj(int my_id = 0): my_test_obj(my_id)
    {
        instance_count++;
    }
    virtual ~my_other_test_obj()
    {
        if (instance_count == 0) {
            printf("Error, instance count is going past zero!\n");
        }

        instance_count--;
    }
};

int my_test_obj::instance_count = 0;
int my_other_test_obj::instance_count = 0;

typedef etl::smart_ptr<my_test_obj> obj_smart_ptr;
typedef etl::smart_ptr<my_other_test_obj> other_obj_smart_ptr;
typedef list< obj_smart_ptr > obj_list;
typedef list< other_obj_smart_ptr > other_obj_list;

int smart_ptr_basic_test(void)
{
    printf("smart_ptr: Size of a smart_ptr: %u\n", (unsigned int)sizeof(obj_smart_ptr));
    printf("smart_ptr: Size of a reference_counter: %u\n", (unsigned int)sizeof(etl::reference_counter));

    printf("smart_ptr: Basic test: ");
    my_test_obj::instance_count = 0;

    {
        etl::smart_ptr<my_test_obj> obj_smart_ptr(new my_test_obj(rand()));
    }

    if (my_test_obj::instance_count != 0) {
        printf("FAILED!\n");
        printf(__FILE__":%d: on create/destroy, instance count=%d, should be zero.\n", __LINE__, my_test_obj::instance_count);
        return 1;
    }

    {
        DEBUGPOINT();
        map<string, etl::smart_ptr<my_test_obj> > my_map;
        DEBUGPOINT();
        etl::smart_ptr<my_test_obj> temp;
        temp.spawn();
        DEBUGPOINT();
        temp.reset();
        DEBUGPOINT();
        my_map["bleh"] = temp;
        DEBUGPOINT();
    }

    if (my_test_obj::instance_count != 0) {
        printf("FAILED!\n");
        printf(__FILE__":%d: on create/destroy, instance count=%d, should be zero.\n", __LINE__, my_test_obj::instance_count);
        return 1;
    }

    etl::smart_ptr<my_test_obj> obj_smart_ptr(new my_test_obj(rand()));

    if (obj_smart_ptr != obj_smart_ptr.constant()) {
        printf("FAILED!\n");
        printf(__FILE__":%d: on call to smart_ptr<>::constant().\n", __LINE__);
        return 1;
    }

    printf("PASSED\n");

    return 0;
}

int smart_ptr_general_use_test(void)
{
    printf("smart_ptr: General-use test: ");
    my_test_obj::instance_count = 0;

    obj_list my_list, my_other_list;
    int i;

    for (i = 0; i < NUMBER_OF_OBJECTS; i++) {
        my_list.push_back(obj_smart_ptr(new my_test_obj(rand())));
    }

    my_other_list = my_list;

    if (my_test_obj::instance_count != NUMBER_OF_OBJECTS) {
        printf("FAILED!\n");
        printf(__FILE__":%d: On copy, instance count=%d, should be %d.\n", __LINE__, my_test_obj::instance_count, NUMBER_OF_OBJECTS);
        return 1;
    }

    my_list.sort();

    if (my_test_obj::instance_count != NUMBER_OF_OBJECTS) {
        printf("FAILED!\n");
        printf(__FILE__":%d: On copy, instance count=%d, should be %d.\n", __LINE__, my_test_obj::instance_count, NUMBER_OF_OBJECTS);
        return 1;
    }

    my_list.clear();

    if (my_test_obj::instance_count != NUMBER_OF_OBJECTS) {
        printf("FAILED!\n");
        printf(__FILE__":%d: On copy's clear, instance count=%d, should be %d.\n", __LINE__, my_test_obj::instance_count, NUMBER_OF_OBJECTS);
        return 1;
    }

    my_other_list.clear();

    if (my_test_obj::instance_count) {
        printf("FAILED!\n");
        printf(__FILE__":%d: On clear, instance count=%d, should be zero.\n", __LINE__, my_test_obj::instance_count);
        return 1;
    }

    printf("PASSED\n");

    return 0;
}

int smart_ptr_inheritance_test(void)
{
    printf("smart_ptr: Inheritance test: ");
    my_test_obj::instance_count = 0;
    my_other_test_obj::instance_count = 0;

    other_obj_list my_other_list;
    int i;

    for (i = 0; i < NUMBER_OF_OBJECTS; i++) {
        my_other_list.push_back(other_obj_smart_ptr(new my_other_test_obj(rand())));
    }

    obj_list my_list(my_other_list.begin(), my_other_list.end());

    if (my_test_obj::instance_count != NUMBER_OF_OBJECTS) {
        printf("FAILED!\n");
        printf(__FILE__":%d: On copy, instance count=%d, should be %d.\n", __LINE__, my_test_obj::instance_count, NUMBER_OF_OBJECTS);
        return 1;
    }

    for (i = 0; i < NUMBER_OF_OBJECTS; i++) {
        my_list.push_back(other_obj_smart_ptr(new my_other_test_obj(rand())));
    }

    if (my_other_test_obj::instance_count != NUMBER_OF_OBJECTS * 2 ||
            my_test_obj::instance_count != my_other_test_obj::instance_count) {
        printf("FAILED!\n");
        printf(__FILE__":%d: On inherited copy, instance count=%d, should be %d.\n", __LINE__, my_test_obj::instance_count, NUMBER_OF_OBJECTS * 2);
        return 1;
    }

    my_list.sort();
    my_other_list.sort();

    if (my_test_obj::instance_count != NUMBER_OF_OBJECTS * 2) {
        printf("FAILED!\n");
        printf(__FILE__":%d: On sort, instance count=%d, should be %d.\n", __LINE__, my_test_obj::instance_count, NUMBER_OF_OBJECTS * 2);
        return 1;
    }

    my_list.clear();

    if (my_test_obj::instance_count != NUMBER_OF_OBJECTS) {
        printf("FAILED!\n");
        printf(__FILE__":%d: On clear, instance count=%d, should be %d.\n", __LINE__, my_test_obj::instance_count, NUMBER_OF_OBJECTS);
        return 1;
    }

    my_other_list.clear();

    if (my_test_obj::instance_count) {
        printf("FAILED!\n");
        printf(__FILE__":%d: On clear, instance count=%d, should be zero.\n", __LINE__, my_test_obj::instance_count);
        return 1;
    }

    printf("PASSED\n");

    return 0;
}

void test_func(etl::smart_ptr<my_test_obj> smart_ptr __attribute__((unused)))
{
}

int loose_smart_ptr_test(void)
{
    printf("smart_ptr: loose_smart_ptr test: ");
    my_test_obj::instance_count = 0;

    etl::loose_smart_ptr<my_test_obj> obj_smart_ptr_loose;
    etl::smart_ptr<my_test_obj> obj_smart_ptr2;

    {
        etl::smart_ptr<my_test_obj> obj_smart_ptr(new my_test_obj(rand()));

        if (my_test_obj::instance_count != 1) {
            printf("FAILED!\n");
            printf(__FILE__":%d: on smart_ptr assignment from new object, instance count=%d, should be 1.\n", __LINE__, my_test_obj::instance_count);
            return 1;
        }

        obj_smart_ptr_loose = obj_smart_ptr;

        if (obj_smart_ptr != obj_smart_ptr_loose) {
            printf("FAILED!\n");
            printf(__FILE__":%d: on loose_smart_ptr assignment\n", __LINE__);
            return 1;
        }

        obj_smart_ptr2 = obj_smart_ptr_loose;

        if (my_test_obj::instance_count != 1) {
            printf("FAILED!\n");
            printf(__FILE__":%d: on smart_ptr assignment from loose_smart_ptr, instance count=%d, should be 1.\n", __LINE__, my_test_obj::instance_count);
            return 1;
        }

        test_func(obj_smart_ptr_loose);

        if (my_test_obj::instance_count != 1) {
            printf("FAILED!\n");
            printf(__FILE__":%d: on smart_ptr assignment from loose_smart_ptr, instance count=%d, should be 1.\n", __LINE__, my_test_obj::instance_count);
            return 1;
        }
    }

    if (my_test_obj::instance_count != 1) {
        printf("FAILED!\n");
        printf(__FILE__":%d: on create/destroy, instance count=%d, should be 1.\n", __LINE__, my_test_obj::instance_count);
        return 1;
    }

    printf("PASSED\n");
    return 0;
}

int main()
{
    int error = 0;

    error += smart_ptr_basic_test();
    error += smart_ptr_general_use_test();
    error += smart_ptr_inheritance_test();
    error += loose_smart_ptr_test();

    return error;
}