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/**
* @file llleap_test.cpp
* @author Nat Goodspeed
* @date 2012-02-21
* @brief Test for llleap.
*
* $LicenseInfo:firstyear=2012&license=viewerlgpl$
* Copyright (c) 2012, Linden Research, Inc.
* $/LicenseInfo$
*/
// Precompiled header
#include "linden_common.h"
// associated header
#include "llleap.h"
// STL headers
// std headers
// external library headers
#include <boost/assign/list_of.hpp>
#include <boost/lambda/lambda.hpp>
#include <boost/foreach.hpp>
// other Linden headers
#include "../test/lltut.h"
#include "../test/namedtempfile.h"
#include "../test/manageapr.h"
#include "../test/catch_and_store_what_in.h"
#include "wrapllerrs.h"
#include "llevents.h"
#include "llprocess.h"
#include "stringize.h"
#include "StringVec.h"
using boost::assign::list_of;
static ManageAPR manager;
StringVec sv(const StringVec& listof) { return listof; }
#if defined(LL_WINDOWS)
#define sleep(secs) _sleep((secs) * 1000)
#endif
void waitfor(const std::vector<LLLeap*>& instances)
{
int i, timeout = 60;
for (i = 0; i < timeout; ++i)
{
// Every iteration, test whether any of the passed LLLeap instances
// still exist (are still running).
std::vector<LLLeap*>::const_iterator vli(instances.begin()), vlend(instances.end());
for ( ; vli != vlend; ++vli)
{
// getInstance() returns NULL if it's terminated/gone, non-NULL if
// it's still running
if (LLLeap::getInstance(*vli))
break;
}
// If we made it through all of 'instances' without finding one that's
// still running, we're done.
if (vli == vlend)
return;
// Found an instance that's still running. Wait and pump LLProcess.
sleep(1);
LLEventPumps::instance().obtain("mainloop").post(LLSD());
}
tut::ensure("timed out without terminating", i < timeout);
}
void waitfor(LLLeap* instance)
{
std::vector<LLLeap*> instances;
instances.push_back(instance);
waitfor(instances);
}
/*****************************************************************************
* TUT
*****************************************************************************/
namespace tut
{
struct llleap_data
{
llleap_data():
reader(".py",
// This logic is adapted from vita.viewerclient.receiveEvent()
"import sys\n"
"LEFTOVER = ''\n"
"class ProtocolError(Exception):\n"
" pass\n"
"def get():\n"
" global LEFTOVER\n"
" hdr = LEFTOVER\n"
" if ':' not in hdr:\n"
" hdr += sys.stdin.read(20)\n"
" if not hdr:\n"
" sys.exit(0)\n"
" parts = hdr.split(':', 1)\n"
" if len(parts) != 2:\n"
" raise ProtocolError('Expected len:data, got %r' % hdr)\n"
" try:\n"
" length = int(parts[0])\n"
" except ValueError:\n"
" raise ProtocolError('Non-numeric len %r' % parts[0])\n"
" del parts[0]\n"
" received = len(parts[0])\n"
" while received < length:\n"
" parts.append(sys.stdin.read(length - received))\n"
" received += len(parts[-1])\n"
" if received > length:\n"
" excess = length - received\n"
" LEFTOVER = parts[-1][excess:]\n"
" parts[-1] = parts[-1][:excess]\n"
" data = ''.join(parts)\n"
" assert len(data) == length\n"
" return data\n"),
// Get the actual pathname of the NamedExtTempFile and trim off
// the ".py" extension. (We could cache reader.getName() in a
// separate member variable, but I happen to know getName() just
// returns a NamedExtTempFile member rather than performing any
// computation, so I don't mind calling it twice.) Then take the
// basename.
reader_module(LLProcess::basename(
reader.getName().substr(0, reader.getName().length()-3))),
pPYTHON(getenv("PYTHON")),
PYTHON(pPYTHON? pPYTHON : "")
{
ensure("Set PYTHON to interpreter pathname", pPYTHON);
}
NamedExtTempFile reader;
const std::string reader_module;
const char* pPYTHON;
const std::string PYTHON;
};
typedef test_group<llleap_data> llleap_group;
typedef llleap_group::object object;
llleap_group llleapgrp("llleap");
template<> template<>
void object::test<1>()
{
set_test_name("multiple LLLeap instances");
NamedTempFile script("py",
"import time\n"
"time.sleep(1)\n");
std::vector<LLLeap*> instances;
instances.push_back(LLLeap::create(get_test_name(),
sv(list_of(PYTHON)(script.getName()))));
instances.push_back(LLLeap::create(get_test_name(),
sv(list_of(PYTHON)(script.getName()))));
// In this case we're simply establishing that two LLLeap instances
// can coexist without throwing exceptions or bombing in any other
// way. Wait for them to terminate.
waitfor(instances);
}
template<> template<>
void object::test<2>()
{
set_test_name("stderr to log");
NamedTempFile script("py",
"import sys\n"
"sys.stderr.write('''Hello from Python!\n"
"note partial line''')\n");
CaptureLog log(LLError::LEVEL_INFO);
waitfor(LLLeap::create(get_test_name(),
sv(list_of(PYTHON)(script.getName()))));
log.messageWith("Hello from Python!");
log.messageWith("note partial line");
}
template<> template<>
void object::test<3>()
{
set_test_name("empty plugin vector");
std::string threw;
try
{
LLLeap::create("empty", StringVec());
}
CATCH_AND_STORE_WHAT_IN(threw, LLLeap::Error)
ensure_contains("LLLeap::Error", threw, "no plugin");
// try the suppress-exception variant
ensure("bad launch returned non-NULL", ! LLLeap::create("empty", StringVec(), false));
}
template<> template<>
void object::test<4>()
{
set_test_name("bad launch");
// Synthesize bogus executable name
std::string BADPYTHON(PYTHON.substr(0, PYTHON.length()-1) + "x");
CaptureLog log;
std::string threw;
try
{
LLLeap::create("bad exe", BADPYTHON);
}
CATCH_AND_STORE_WHAT_IN(threw, LLLeap::Error)
ensure_contains("LLLeap::create() didn't throw", threw, "failed");
log.messageWith("failed");
log.messageWith(BADPYTHON);
// try the suppress-exception variant
ensure("bad launch returned non-NULL", ! LLLeap::create("bad exe", BADPYTHON, false));
}
// Mimic a dummy little LLEventAPI that merely sends a reply back to its
// requester on the "reply" pump.
struct API
{
API():
mPump("API", true)
{
mPump.listen("API", boost::bind(&API::entry, this, _1));
}
bool entry(const LLSD& request)
{
LLEventPumps::instance().obtain(request["reply"]).post("ack");
return false;
}
LLEventStream mPump;
};
template<> template<>
void object::test<5>()
{
set_test_name("round trip");
API api;
NamedTempFile script("py",
boost::lambda::_1 <<
"import re\n"
"import sys\n"
"from " << reader_module << " import get\n"
// this will throw if the initial write to stdin
// doesn't follow len:data protocol
"initial = get()\n"
"match = re.search(r\"'pump':'(.*?)'\", initial)\n"
// this will throw if we couldn't find
// 'pump':'etc.' in the initial write
"reply = match.group(1)\n"
"req = '''\\\n"
"{'pump':'" << api.mPump.getName() << "','data':{'reply':'%s'}}\\\n"
"''' % reply\n"
// make a request on our little API
"sys.stdout.write(':'.join((str(len(req)), req)))\n"
"sys.stdout.flush()\n"
// wait for its response
"resp = get()\n"
// it would be cleverer to be order-insensitive
// about 'data' and 'pump'; hopefully the C++
// serializer doesn't change its rules soon
"result = 'good' if (resp == \"{'data':'ack','pump':'%s'}\" % reply)\\\n"
" else 'bad: ' + resp\n"
// write 'good' or 'bad' to the log so we can observe
"sys.stderr.write(result)\n");
CaptureLog log(LLError::LEVEL_INFO);
waitfor(LLLeap::create(get_test_name(), sv(list_of(PYTHON)(script.getName()))));
log.messageWith("good");
}
} // namespace tut
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