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#include <TestSupport.h>
#include <boost/shared_ptr.hpp>
#include <boost/make_shared.hpp>
#include <boost/thread.hpp>
#include <oxt/system_calls.hpp>
#include <vector>
#include <BackgroundEventLoop.h>
#include <ServerKit/Server.h>
#include <ServerKit/ClientRef.h>
#include <LoggingKit/LoggingKit.h>
#include <FileDescriptor.h>
#include <IOTools/IOUtils.h>
using namespace Passenger;
using namespace Passenger::ServerKit;
using namespace Passenger::MemoryKit;
using namespace std;
using namespace oxt;
namespace tut {
struct ServerKit_ServerTest: public TestBase {
typedef ClientRef<Server<Client>, Client> ClientRefType;
BackgroundEventLoop bg;
Json::Value config;
ServerKit::Schema skSchema;
ServerKit::Context context;
ServerKit::BaseServerSchema schema;
boost::shared_ptr< Server<Client> > server;
int serverSocket1, serverSocket2;
ServerKit_ServerTest()
: bg(false, true),
context(skSchema)
{
if (defaultLogLevel == (LoggingKit::Level) DEFAULT_LOG_LEVEL) {
// If the user did not customize the test's log level,
// then we'll want to tone down the noise.
LoggingKit::setLevel(LoggingKit::CRIT);
}
context.libev = bg.safe;
context.libuv = bg.libuv_loop;
context.initialize();
serverSocket1 = createUnixServer("tmp.server1");
serverSocket2 = createUnixServer("tmp.server2");
}
~ServerKit_ServerTest() {
if (!bg.isStarted()) {
bg.start();
}
if (server != NULL) {
bg.safe->runSync(boost::bind(&Server<Client>::shutdown, server.get(), true));
while (getServerState() != Server<Client>::FINISHED_SHUTDOWN) {
syscalls::usleep(10000);
}
}
bg.safe->runSync(boost::bind(&ServerKit_ServerTest::destroyServer,
this));
safelyClose(serverSocket1);
safelyClose(serverSocket2);
unlink("tmp.server1");
unlink("tmp.server2");
bg.stop();
}
void init() {
server = boost::make_shared< Server<Client> >(&context, schema, config);
server->initialize();
server->listen(serverSocket1);
}
template<typename ServerClass>
void initWithServerClass() {
server = boost::make_shared<ServerClass>(&context, schema, config);
server->initialize();
server->listen(serverSocket1);
}
void startServer() {
bg.start();
}
void destroyServer() {
server.reset();
}
FileDescriptor connectToServer1() {
return FileDescriptor(connectToUnixServer("tmp.server1", __FILE__, __LINE__), NULL, 0);
}
FileDescriptor connectToServer2() {
return FileDescriptor(connectToUnixServer("tmp.server2", __FILE__, __LINE__), NULL, 0);
}
Server<Client>::State getServerState() {
Server<Client>::State result;
bg.safe->runSync(boost::bind(&ServerKit_ServerTest::_getServerState,
this, &result));
return result;
}
void _getServerState(Server<Client>::State *state) {
*state = server->serverState;
}
unsigned int getActiveClientCount() {
int result;
bg.safe->runSync(boost::bind(&ServerKit_ServerTest::_getActiveClientCount,
this, &result));
return result;
}
void _getActiveClientCount(int *result) {
*result = server->activeClientCount;
}
unsigned int getDisconnectedClientCount() {
int result;
bg.safe->runSync(boost::bind(&ServerKit_ServerTest::_getDisconnectedClientCount,
this, &result));
return result;
}
void _getDisconnectedClientCount(int *result) {
*result = server->disconnectedClientCount;
}
unsigned int getFreeClientCount() {
int result;
bg.safe->runSync(boost::bind(&ServerKit_ServerTest::_getFreeClientCount,
this, &result));
return result;
}
void _getFreeClientCount(int *result) {
*result = server->freeClientCount;
}
vector<ClientRefType> getActiveClients() {
vector<ClientRefType> result;
bg.safe->runSync(boost::bind(&ServerKit_ServerTest::_getActiveClients,
this, &result));
return result;
}
void _getActiveClients(vector<ClientRefType> *result) {
*result = server->getActiveClients();
}
bool clientIsConnected(Client *client) {
bool result;
bg.safe->runSync(boost::bind(&ServerKit_ServerTest::_clientIsConnected,
this, client, &result));
return result;
}
void _clientIsConnected(Client *client, bool *result) {
*result = client->connected();
}
};
DEFINE_TEST_GROUP(ServerKit_ServerTest);
/***** Initial state *****/
TEST_METHOD(1) {
set_test_name("It has no clients at startup");
init();
ensure_equals(server->activeClientCount, 0u);
ensure_equals(server->disconnectedClientCount, 0u);
ensure_equals(server->freeClientCount, 0u);
}
/***** Client object management *****/
TEST_METHOD(5) {
set_test_name("Accepting a new client works");
init();
startServer();
FileDescriptor fd(connectToServer1());
EVENTUALLY(5,
result = getActiveClientCount() == 1u;
);
}
TEST_METHOD(6) {
set_test_name("When a client is accepted, and the freelist is non-empty, "
"the object is checked out from the freelist");
config["min_spare_clients"] = 1;
init();
server->createSpareClients();
startServer();
ensure_equals(getActiveClientCount(), 0u);
ensure_equals(getDisconnectedClientCount(), 0u);
ensure_equals(getFreeClientCount(), 1u);
FileDescriptor fd(connectToServer1());
EVENTUALLY(5,
result = getActiveClientCount() == 1u;
);
ensure_equals(getDisconnectedClientCount(), 0u);
ensure_equals(getFreeClientCount(), 0u);
}
TEST_METHOD(7) {
set_test_name("When a client is accepted, and the freelist is empty, "
"the object is allocated");
init();
startServer();
FileDescriptor fd(connectToServer1());
EVENTUALLY(5,
result = getActiveClientCount() == 1u;
);
ensure_equals(getDisconnectedClientCount(), 0u);
ensure_equals(getFreeClientCount(), 0u);
}
TEST_METHOD(8) {
set_test_name("Once a client has been disconnected, and the freelist has not "
"yet reached the limit, the client object is put on the freelist");
config["client_freelist_limit"] = 10;
init();
startServer();
FileDescriptor fd(connectToServer1());
EVENTUALLY(5,
result = getActiveClientCount() == 1u;
);
fd.close();
EVENTUALLY(5,
result = getActiveClientCount() == 0u;
);
ensure_equals(getDisconnectedClientCount(), 0u);
ensure_equals(getFreeClientCount(), 1u);
}
TEST_METHOD(9) {
set_test_name("Once a client has been disconnected, and the freelist has "
"reached the limit, the client object is destroyed");
config["client_freelist_limit"] = 0;
init();
startServer();
FileDescriptor fd(connectToServer1());
EVENTUALLY(5,
result = getActiveClientCount() == 1u;
);
fd.close();
EVENTUALLY(5,
result = getActiveClientCount() == 0u;
);
ensure_equals(getDisconnectedClientCount(), 0u);
ensure_equals(getFreeClientCount(), 0u);
}
TEST_METHOD(10) {
set_test_name("Once a client has been disconnected, the freelist has not yet reached "
"the limit, and there are still references to the client, then the client is first "
"put in the disconnecting list, then in the freelist when the last references disappear");
vector<ClientRefType> clients;
config["client_freelist_limit"] = 10;
init();
startServer();
FileDescriptor fd(connectToServer1());
EVENTUALLY(5,
result = getActiveClientCount() == 1u;
);
clients = getActiveClients();
fd.close();
EVENTUALLY(5,
result = getActiveClientCount() == 0u;
);
ensure_equals(getDisconnectedClientCount(), 1u);
ensure_equals(getFreeClientCount(), 0u);
clients.clear();
EVENTUALLY(5,
result = getDisconnectedClientCount() == 0u;
);
ensure_equals(getActiveClientCount(), 0u);
ensure_equals(getFreeClientCount(), 1u);
}
TEST_METHOD(11) {
set_test_name("Once a client has been disconnected, the freelist has reached the limit, "
"and there are still references to the client, then the client is first put in the "
"disconnecting list, then destroyed when the last references disappear");
vector<ClientRefType> clients;
config["client_freelist_limit"] = 0;
init();
startServer();
FileDescriptor fd(connectToServer1());
EVENTUALLY(5,
result = getActiveClientCount() == 1u;
);
clients = getActiveClients();
fd.close();
EVENTUALLY(5,
result = getActiveClientCount() == 0u;
);
ensure_equals(getDisconnectedClientCount(), 1u);
ensure_equals(getFreeClientCount(), 0u);
clients.clear();
EVENTUALLY(5,
result = getDisconnectedClientCount() == 0u;
);
ensure_equals(getActiveClientCount(), 0u);
ensure_equals(getFreeClientCount(), 0u);
}
/****** Multiple listen endpoints *****/
TEST_METHOD(20) {
set_test_name("It can listen on multiple endpoints");
init();
server->listen(serverSocket2);
startServer();
FileDescriptor fd1 = connectToServer1();
FileDescriptor fd2 = connectToServer2();
EVENTUALLY(5,
result = getActiveClientCount() == 2u;
);
}
/****** Input and output *****/
class Test25Server: public Server<Client> {
protected:
virtual Channel::Result onClientDataReceived(Client *client,
const MemoryKit::mbuf &buffer, int errcode)
{
if (errcode != 0 || buffer.empty()) {
disconnect(&client);
} else {
boost::lock_guard<boost::mutex> l(syncher);
data.append(buffer.start, buffer.size());
}
return Channel::Result(buffer.size(), false);
}
public:
boost::mutex syncher;
string data;
Test25Server(Context *ctx, const ServerKit::BaseServerSchema &schema,
const Json::Value &initialConfig)
: Server<Client>(ctx, schema, initialConfig)
{ }
};
TEST_METHOD(25) {
set_test_name("Input is made available through client->input");
initWithServerClass<Test25Server>();
startServer();
FileDescriptor fd(connectToServer1());
writeExact(fd, "hello", 5);
EVENTUALLY(5,
Test25Server *s = (Test25Server *) server.get();
boost::lock_guard<boost::mutex> l(s->syncher);
result = s->data == "hello";
);
}
class Test26Server: public Server<Client> {
protected:
virtual Channel::Result onClientDataReceived(Client *client,
const MemoryKit::mbuf &buffer, int errcode)
{
if (errcode != 0 || buffer.empty()) {
disconnect(&client);
} else {
client->output.feed(buffer);
}
return Channel::Result(buffer.size(), false);
}
public:
Test26Server(Context *ctx, const ServerKit::BaseServerSchema &schema,
const Json::Value &initialConfig)
: Server<Client>(ctx, schema, initialConfig)
{ }
};
TEST_METHOD(26) {
set_test_name("Output is made available through client->output");
initWithServerClass<Test26Server>();
startServer();
FileDescriptor fd(connectToServer1());
writeExact(fd, "hello", 5);
syscalls::shutdown(fd, SHUT_WR);
ensure_equals(readAll(fd, 1024).first, "hello");
}
TEST_METHOD(27) {
set_test_name("The file descriptor can be obtained through client->getFd()");
init();
startServer();
FileDescriptor fd(connectToServer1());
EVENTUALLY(5,
result = getActiveClientCount() == 1u;
);
ClientRefType client = getActiveClients()[0];
writeExact(client.get()->getFd(), "hello", 5);
char buf[5];
readExact(fd, buf, 5);
ensure_equals(StaticString(buf, 5), StaticString("hello"));
}
TEST_METHOD(28) {
set_test_name("When a client is disconnected, client->connected() becomes false");
init();
startServer();
FileDescriptor fd(connectToServer1());
EVENTUALLY(5,
result = getActiveClientCount() == 1u;
);
ClientRefType client = getActiveClients()[0];
ensure(clientIsConnected(client.get()));
fd.close();
EVENTUALLY(5,
result = !clientIsConnected(client.get());
);
}
}