inspiration/ETL/test/handle.cpp

/*! ========================================================================
** Extended Template and Library Test Suite
** Handle 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 ===========================================================
**
** ========================================================================= */

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

#define NUMBER_OF_OBJECTS	40000
using namespace std;

struct my_test_obj : public etl::rshared_object {
    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::handle<my_test_obj> obj_handle;
typedef etl::rhandle<my_test_obj> robj_handle;
typedef etl::handle<my_other_test_obj> other_obj_handle;
typedef list< obj_handle > obj_list;
typedef list< other_obj_handle > other_obj_list;
typedef list< robj_handle > robj_list;

int handle_basic_test()
{
    printf("handle: Size of a handle: %u\n", (unsigned int)sizeof(etl::handle<int>));
    printf("handle: Size of a loose_handle: %u\n", (unsigned int)sizeof(etl::loose_handle<int>));
    printf("handle: Size of a rhandle: %u\n", (unsigned int)sizeof(etl::rhandle<int>));
    printf("handle: Size of a shared_object: %u\n", (unsigned int)sizeof(etl::shared_object));
    printf("handle: Size of a rshared_object: %u\n", (unsigned int)sizeof(etl::rshared_object));

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

    {
        etl::handle<my_test_obj> obj_handle(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;
    }

    {
        map<string, etl::handle<my_test_obj> > my_map;
        etl::handle<my_test_obj> obj_handle(new my_test_obj(rand()));
        my_map["bleh"] = obj_handle;
    }

    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::handle<my_test_obj> obj_handle(new my_test_obj(rand()));

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

    printf("PASSED\n");

    return 0;
}

int handle_general_use_test(void)
{
    printf("handle: 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_handle(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;
    }

    {
        obj_handle a(new my_test_obj(27)), b(new my_test_obj(42));
        a.swap(b);

        if (a->my_id != 42 || b->my_id != 27) {
            printf("FAILED!\n");
            printf(__FILE__":%d: On swap (27,42) gave (%d,%d), should be (42,27).\n", __LINE__, a->my_id, b->my_id);
            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;
}

struct ListItem {
    robj_handle obj;
    int bleh;
    int blah;
    ListItem(robj_handle obj, int bleh = 1, int blah = 2):
        obj(obj), bleh(bleh), blah(blah) { }
};

int rhandle_general_use_test(void)
{

    printf("rhandle: General-use test: ");
    my_test_obj::instance_count = 0;

    robj_list my_list;
    int i;

    robj_handle obj =	new my_test_obj(rand());

    for (i = 0; i < NUMBER_OF_OBJECTS; i++) {
        my_list.push_back(obj);
    }

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

    if (obj.count() != NUMBER_OF_OBJECTS * 2 + 1) {
        printf("FAILED!\n");
        printf(__FILE__":%d: On copy, handle count=%d, should be %d.\n", __LINE__, obj.count(), NUMBER_OF_OBJECTS * 2 + 1);
        return 1;
    }

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

    my_list.sort();

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

    {
        robj_handle bleh(obj);
    }

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

    my_other_list.clear();

    if (obj.rcount() != obj.count()) {
        printf("FAILED!\n");
        printf(__FILE__":%d: On copy's clear, handle count (%d) != rhandle count (%d)\n", __LINE__, obj.count(), obj.rcount());
        return 1;
    }

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

    robj_handle new_obj =	new my_test_obj(rand());

    int replacements = obj.replace(new_obj);

    if (replacements != NUMBER_OF_OBJECTS + 1) {
        printf("FAILED!\n");
        printf(__FILE__":%d: Only managed to replace %d, should have replaced %d\n", __LINE__, replacements, NUMBER_OF_OBJECTS + 1);
        return 1;
    }

    if (obj != new_obj) {
        printf("FAILED!\n");
        printf(__FILE__":%d: On replace, handles should be equal.\n", __LINE__);
        return 1;
    }

    {
        robj_handle bleh(obj);
        robj_handle blah(obj.get());
    }

    my_list.clear();
    obj.detach();
    new_obj.detach();

    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;
    }

    std::vector<ListItem> my_item_list;

    for (i = 0; i < NUMBER_OF_OBJECTS; i++) {
        my_item_list.push_back(ListItem(new my_test_obj(rand()), 3, 4));
    }

    for (i = 0; i < 100; i++) {
        int src, dest;
        src = rand() % NUMBER_OF_OBJECTS;
        dest = rand() % NUMBER_OF_OBJECTS;
        ListItem tmp(my_item_list[src]);
        assert(tmp.obj.rcount() >= 2);
        my_item_list.erase(my_item_list.begin() + src);
        assert(tmp.obj.rcount() >= 1);
        my_item_list.insert(my_item_list.begin() + dest, tmp);
        assert(tmp.obj.rcount() >= 2);
    }

    my_item_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 handle_inheritance_test(void)
{
    printf("handle: 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_handle(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_handle(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::handle<my_test_obj> handle)
{
    if (handle) {
        int i = handle.count();
        i++;
    }
}

int loose_handle_test(void)
{
    printf("handle: loose_handle test: ");
    my_test_obj::instance_count = 0;

    etl::loose_handle<my_test_obj> obj_handle_loose;
    etl::handle<my_test_obj> obj_handle2;

    {
        etl::handle<my_test_obj> obj_handle(new my_test_obj(rand()));

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

        obj_handle_loose = obj_handle;

        if (obj_handle != obj_handle_loose) {
            printf("FAILED!\n");
            printf(__FILE__":%d: on loose_handle assignment\n", __LINE__);
            return 1;
        }

        obj_handle2 = obj_handle_loose;

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

        test_func(obj_handle_loose);

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

    {
        etl::loose_handle<my_test_obj> a(new my_test_obj(27)), b(new my_test_obj(42));
        a.swap(b);

        if (a->my_id != 42 || b->my_id != 27) {
            printf("FAILED!\n");
            printf(__FILE__":%d: on loose_handle swap (27,42) gave (%d,%d), should be (42,27).\n", __LINE__, a->my_id, b->my_id);
            return 1;
        }
    }

    if (my_test_obj::instance_count != 3) {
        printf("FAILED!\n");
        printf(__FILE__":%d: on create/destroy, instance count=%d, should be 3.\n", __LINE__, my_test_obj::instance_count);
        return 1;
    }

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

int handle_cast_test()
{
    printf("handle: casting test: ");

    etl::handle<my_test_obj> obj;
    etl::handle<my_other_test_obj> other_obj;
    etl::loose_handle<my_other_test_obj> loose_obj;

    other_obj.spawn();
    loose_obj = other_obj;

    obj = etl::handle<my_test_obj>::cast_dynamic(loose_obj);

    if (obj != other_obj) {
        printf("FAILED!\n");
        printf(__FILE__":%d: on handle assignment from loose_handle.\n", __LINE__);
        return 1;
    }

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

int main()
{
    int error = 0;

    error += handle_basic_test();
    error += handle_cast_test();
    error += handle_general_use_test();
    error += handle_inheritance_test();
    error += loose_handle_test();
    error += rhandle_general_use_test();

    return error;
}