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MultiCdnStrategyTestCase.cpp
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MultiCdnStrategyTestCase.cpp
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// init test unit include
#include <cppunit/BriefTestProgressListener.h>
#include <cppunit/CompilerOutputter.h>
#include <cppunit/extensions/TestFactoryRegistry.h>
#include <cppunit/TestResult.h>
#include <cppunit/TestResultCollector.h>
#include <cppunit/TestRunner.h>
#include <cppunit/config/SourcePrefix.h>
#include "MultiCdnStrategyTestCase.h"
mock_cdn_pack::mock_cdn_pack(std::string host)
: m_host(host)
, m_connect_state(CONNECT_WAITING)
{
}
mock_cdn_pack::~mock_cdn_pack()
{
}
mock_multi_cdn_strategy::mock_multi_cdn_strategy(vod_connect_dispatcher * dispatch_ptr, unsigned long bitrate)
: multi_cdn_strategy(dispatch_ptr, bitrate)
{
}
mock_multi_cdn_strategy::~mock_multi_cdn_strategy()
{
clear_cdn_pack();
}
void mock_multi_cdn_strategy::clear_cdn_pack()
{
std::vector<cdn_pack_base*>::iterator it = m_mock_cdn_packs.begin();
for (; it != m_mock_cdn_packs.end(); ++ it)
{
cdn_pack_base * pack_ptr = *it;
if (pack_ptr)
{
delete pack_ptr;
pack_ptr = NULL;
}
}
m_mock_cdn_packs.clear();
}
void mock_multi_cdn_strategy::get_query_cdn_result(std::list<std::string>& cdns)
{
std::list<std::string>::iterator it = m_query_cdn_result.begin();
for (; it != m_query_cdn_result.end(); ++ it)
{
cdns.push_back(*it);
}
}
void mock_multi_cdn_strategy::get_all_cdns_from_dispacther(std::vector<cdn_pack_base*>& cdns)
{
std::vector<cdn_pack_base*>::iterator it = m_mock_cdn_packs.begin();
for (; it != m_mock_cdn_packs.end(); ++ it)
{
cdn_pack_base* pack_ptr = convert_to_cdn_pack(*it);
cdns.push_back(pack_ptr);
}
}
void mock_multi_cdn_strategy::get_connected_cdns_from_dispatcher(std::vector<cdn_pack_base*>& cdns)
{
std::vector<cdn_pack_base*>::iterator it = m_mock_cdn_packs.begin();
for (; it != m_mock_cdn_packs.end(); ++ it)
{
cdn_pack_base* pack_ptr = convert_to_cdn_pack(*it);
if (pack_ptr->get_connect_state() == CONNECTED)
{
cdns.push_back(pack_ptr);
}
}
}
cdn_pack_base* mock_multi_cdn_strategy::convert_to_cdn_pack(cdn_pack_base* pack_ptr)
{
cdn_pack_base * ret_ptr = NULL;
std::vector<cdn_pack_base*>::iterator it = m_cdn_pack_pool.begin();
for (; it != m_cdn_pack_pool.end(); ++ it)
{
cdn_pack_base* cdn_ptr = *it;
if (cdn_ptr->is_equal(pack_ptr))
{
ret_ptr = *it;
break;
}
}
if (!ret_ptr)
{
ret_ptr = pack_ptr->copy();
m_cdn_pack_pool.push_back(ret_ptr);
}
return ret_ptr;
}
CPPUNIT_TEST_SUITE_REGISTRATION( MultiCdnStrategyTestCase );
void MultiCdnStrategyTestCase::setUp()
{
// 码率
m_multi_cdn_ptr = new mock_multi_cdn_strategy(NULL, 40000);
}
void MultiCdnStrategyTestCase::tearDown()
{
delete m_multi_cdn_ptr;
}
void MultiCdnStrategyTestCase::TestInitState()
{
int state = m_multi_cdn_ptr->get_current_state();
CPPUNIT_ASSERT( state == state_uninit );
}
void MultiCdnStrategyTestCase::TestStateChange()
{
int original_state = m_multi_cdn_ptr->get_current_state();
// 各种状态对于start_event的转换
m_multi_cdn_ptr->change_state(state_uninit, false);
m_multi_cdn_ptr->start_event();
CPPUNIT_ASSERT( m_multi_cdn_ptr->get_current_state() == state_uninit );
m_multi_cdn_ptr->change_state(state_stop, false);
m_multi_cdn_ptr->start_event();
CPPUNIT_ASSERT( m_multi_cdn_ptr->get_current_state() == state_scale );
m_multi_cdn_ptr->change_state(state_scale, false);
m_multi_cdn_ptr->start_event();
CPPUNIT_ASSERT( m_multi_cdn_ptr->get_current_state() == state_scale );
m_multi_cdn_ptr->change_state(state_compare, false);
m_multi_cdn_ptr->start_event();
CPPUNIT_ASSERT( m_multi_cdn_ptr->get_current_state() == state_compare );
m_multi_cdn_ptr->change_state(state_over, false);
m_multi_cdn_ptr->start_event();
CPPUNIT_ASSERT( m_multi_cdn_ptr->get_current_state() == state_over );
m_multi_cdn_ptr->change_state(original_state, false);
}
// 从服务器请求得到3个ip,和已加入资源的cdn相同的情况
// 拥有3个可选cdn,进入状态state_stop
void MultiCdnStrategyTestCase::TestInitEventNormal()
{
// 模拟query cdn请求来的ip
m_multi_cdn_ptr->m_query_cdn_result.clear();
m_multi_cdn_ptr->m_query_cdn_result.push_back("192.168.0.1");
m_multi_cdn_ptr->m_query_cdn_result.push_back("192.168.0.2");
m_multi_cdn_ptr->m_query_cdn_result.push_back("192.168.0.3");
// 模拟现有的cdn资源
m_multi_cdn_ptr->clear_cdn_pack();
m_multi_cdn_ptr->m_mock_cdn_packs.push_back(new mock_cdn_pack("192.168.0.3"));
m_multi_cdn_ptr->m_mock_cdn_packs.push_back(new mock_cdn_pack("192.168.0.2"));
m_multi_cdn_ptr->m_mock_cdn_packs.push_back(new mock_cdn_pack("192.168.0.1"));
m_multi_cdn_ptr->init_event();
int cdn_count = m_multi_cdn_ptr->m_alternate_cdns.size();
CPPUNIT_ASSERT(cdn_count == 3);
CPPUNIT_ASSERT(m_multi_cdn_ptr->get_current_state() == state_stop);
// 检查备选列表的顺序是否与请求到的顺序一致
std::list<cdn_pack_base*>::iterator it = m_multi_cdn_ptr->m_alternate_cdns.begin();
for (int i = 0; i < cdn_count; ++ i, ++ it)
{
cdn_pack_base * pack_ptr = *it;
switch (i)
{
case 0:
CPPUNIT_ASSERT(pack_ptr->get_host() == "192.168.0.1");
break;
case 1:
CPPUNIT_ASSERT(pack_ptr->get_host() == "192.168.0.2");
break;
case 2:
CPPUNIT_ASSERT(pack_ptr->get_host() == "192.168.0.3");
break;
default:
CPPUNIT_FAIL("more than 3 elements");
break;
}
}
}
// 拥有的cdn资源比query cdn拉到的ip多的情况
// 可能是此时已在播放过程中,已将域名解析到的cdn加入资源
void MultiCdnStrategyTestCase::TestInitEventMoreCdnPipe()
{
m_multi_cdn_ptr->m_query_cdn_result.clear();
m_multi_cdn_ptr->m_query_cdn_result.push_back("192.168.0.1");
m_multi_cdn_ptr->m_query_cdn_result.push_back("192.168.0.2");
m_multi_cdn_ptr->clear_cdn_pack();
m_multi_cdn_ptr->m_mock_cdn_packs.push_back(new mock_cdn_pack("192.168.0.1"));
m_multi_cdn_ptr->m_mock_cdn_packs.push_back(new mock_cdn_pack("192.168.0.2"));
m_multi_cdn_ptr->m_mock_cdn_packs.push_back(new mock_cdn_pack("192.168.0.3"));
m_multi_cdn_ptr->init_event();
CPPUNIT_ASSERT(m_multi_cdn_ptr->m_alternate_cdns.size() == 2);
CPPUNIT_ASSERT(m_multi_cdn_ptr->get_current_state() == state_stop);
}
// query请求到一个cdn的情况
void MultiCdnStrategyTestCase::TestInitEventSingleQueryResult()
{
m_multi_cdn_ptr->m_query_cdn_result.clear();
m_multi_cdn_ptr->m_query_cdn_result.push_back("192.168.0.1");
m_multi_cdn_ptr->clear_cdn_pack();
m_multi_cdn_ptr->m_mock_cdn_packs.push_back(new mock_cdn_pack("192.168.0.1"));
m_multi_cdn_ptr->init_event();
CPPUNIT_ASSERT(m_multi_cdn_ptr->m_alternate_cdns.size() == 0);
CPPUNIT_ASSERT(m_multi_cdn_ptr->get_current_state() == state_over);
}
// 返回了,但一个结果也没有的异常情况
void MultiCdnStrategyTestCase::TestInitEventQueryError()
{
m_multi_cdn_ptr->m_query_cdn_result.clear();
m_multi_cdn_ptr->clear_cdn_pack();
m_multi_cdn_ptr->init_event();
CPPUNIT_ASSERT(m_multi_cdn_ptr->m_alternate_cdns.size() == 0);
CPPUNIT_ASSERT(m_multi_cdn_ptr->get_current_state() == state_over);
}
// 正常情况启动一个cdn
void MultiCdnStrategyTestCase::TestOpenCdnNormal()
{
// 首先初始化
TestInitEventNormal();
// 模拟一个cdn启动,这个cdn应符合多cdn的启动规则
cdn_pack_base * pack_ptr = m_multi_cdn_ptr->get_open_cdn();
pack_ptr->open();
CPPUNIT_ASSERT(pack_ptr->get_host() == "192.168.0.1");
int usable_cdn_count = m_multi_cdn_ptr->m_useable_cdns.size();
CPPUNIT_ASSERT(usable_cdn_count == 1);
// 有cdn启动,进入状态state_scale
m_multi_cdn_ptr->start_event();
CPPUNIT_ASSERT(m_multi_cdn_ptr->get_current_state() == state_scale);
}
// 启动cdn,只有一个可用
void MultiCdnStrategyTestCase::TestOpenCdnSingleResult()
{
// 首先初始化
TestInitEventSingleQueryResult();
// 模拟一个cdn启动,这个cdn应符合多cdn的启动规则
cdn_pack_base * pack_ptr = m_multi_cdn_ptr->get_open_cdn();
pack_ptr->open();
CPPUNIT_ASSERT(pack_ptr->get_host() == "192.168.0.1");
int usable_cdn_count = m_multi_cdn_ptr->m_useable_cdns.size();
CPPUNIT_ASSERT(usable_cdn_count == 0); // 唯一可用的不在usable中,在default中
CPPUNIT_ASSERT(m_multi_cdn_ptr->m_default_cdn->get_host() == "192.168.0.1");
// 有cdn启动,但不是进入状态state_scale
m_multi_cdn_ptr->start_event();
CPPUNIT_ASSERT(m_multi_cdn_ptr->get_current_state() == state_over);
}
// 启动cdn,没有初始化的情况
void MultiCdnStrategyTestCase::TestOpenCdnNoInit()
{
// 没有初始化
// 模拟一个cdn启动,这个cdn应符合多cdn的启动规则
cdn_pack_base * pack_ptr = m_multi_cdn_ptr->get_open_cdn();
CPPUNIT_ASSERT(pack_ptr == NULL);
int usable_cdn_count = m_multi_cdn_ptr->m_useable_cdns.size();
CPPUNIT_ASSERT(usable_cdn_count == 0);
// 没有有cdn启动
m_multi_cdn_ptr->start_event(); // 什么都不做
CPPUNIT_ASSERT(m_multi_cdn_ptr->get_current_state() == state_uninit);
}
// 测试单vp测速状态的情况,如果速度小于码率就进入多vp测速状态
void MultiCdnStrategyTestCase::TestScaleStateNormal()
{
// 首先初始化
TestInitEventNormal();
// 模拟一个cdn启动,这个cdn应符合多cdn的启动规则
cdn_pack_base * pack_ptr = m_multi_cdn_ptr->get_open_cdn();
pack_ptr->open();
CPPUNIT_ASSERT(pack_ptr->get_host() == "192.168.0.1");
int usable_cdn_count = m_multi_cdn_ptr->m_useable_cdns.size();
CPPUNIT_ASSERT(usable_cdn_count == 1);
// 有cdn启动,进入状态state_scale
m_multi_cdn_ptr->start_event();
CPPUNIT_ASSERT(m_multi_cdn_ptr->get_current_state() == state_scale);
// 模拟recv_data_success中给sample积累数据的过程,先积累n秒。
// 定时器2秒一次,样本数量为 时间/2
int sample_count = 9; // 9个样本,18秒
for (int i = 0; i < 9; ++ i)
{
// 假设每个sample间隔可以收集两次数据
m_multi_cdn_ptr->collect_download_event(pack_ptr, 40000);
m_multi_cdn_ptr->collect_download_event(pack_ptr, 45000);
CPPUNIT_ASSERT(m_multi_cdn_ptr->m_sample_cumulated == 40000 + 45000);
m_multi_cdn_ptr->time_out_event(); // 定时器事件
CPPUNIT_ASSERT(m_multi_cdn_ptr->m_sample_cumulated == 0);
CPPUNIT_ASSERT(m_multi_cdn_ptr->m_scale_total_down == 0);
}
CPPUNIT_ASSERT(m_multi_cdn_ptr->m_scale_sample_list.size() == 9);
// 再多一次定时器消息,样本数量达到10个,开始计算是否大于码率
m_multi_cdn_ptr->collect_download_event(pack_ptr, 40000);
m_multi_cdn_ptr->collect_download_event(pack_ptr, 45000);
m_multi_cdn_ptr->time_out_event();
CPPUNIT_ASSERT(m_multi_cdn_ptr->m_scale_sample_list.size() == 10);
// 这时的累积下载量时(40000+45000)*5次采样 大于 码率40000*10秒,保留原来状态,继续采样
CPPUNIT_ASSERT(m_multi_cdn_ptr->m_scale_total_down == (40000+45000)*5);
CPPUNIT_ASSERT(m_multi_cdn_ptr->get_current_state() == state_scale);
m_multi_cdn_ptr->collect_download_event(pack_ptr, 30000);
m_multi_cdn_ptr->collect_download_event(pack_ptr, 20000);
m_multi_cdn_ptr->time_out_event();
CPPUNIT_ASSERT(m_multi_cdn_ptr->m_scale_sample_list.size() == 10);
CPPUNIT_ASSERT(m_multi_cdn_ptr->m_scale_total_down == 390000); // (40000+45000)*4+30000+20000 这个小于码率40000*10
CPPUNIT_ASSERT(m_multi_cdn_ptr->get_current_state() == state_compare); // 进入状态state_compare
CPPUNIT_ASSERT(m_multi_cdn_ptr->m_comparing_cdns.size() == 2);
CPPUNIT_ASSERT(m_multi_cdn_ptr->m_useable_cdns.size() == usable_cdn_count); // 比较状态中没有增加可用cdn数
}
void MultiCdnStrategyTestCase::TestCompareStateNormal()
{
// add new code
m_multi_cdn_ptr->collect_download_event(pack_ptr, 40000);
m_multi_cdn_ptr->collect_download_event(pack_ptr, 45000);
m_multi_cdn_ptr->time_out_event();
}
//////////////////////////////////////////////////////////////////////////
int run_multi_cdn_strategy_test_case()
{
// Create the event manager and test controller
CPPUNIT_NS::TestResult controller;
// Add a listener that colllects test result
CPPUNIT_NS::TestResultCollector result;
controller.addListener( &result );
// Add a listener that print dots as test run.
CPPUNIT_NS::BriefTestProgressListener progress;
controller.addListener( &progress );
// Add the top suite to the test runner
CPPUNIT_NS::TestRunner runner;
runner.addTest( CPPUNIT_NS::TestFactoryRegistry::getRegistry().makeTest() );
runner.run( controller );
// Print test in a compiler compatible format.
std::ofstream ofs("c:\\MultiCdnTestResult.txt");
CPPUNIT_NS::CompilerOutputter outputter( &result, ofs );
outputter.write();
return result.wasSuccessful() ? 0 : 1;
}