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Hazim Gazov
2010-04-02 02:48:44 -03:00
parent 48fbc5ae91
commit 7a86d01598
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indra/llimage/tests/llimageworker_test.cpp Normal file
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/**
* @file llimageworker_test.cpp
* @author Merov Linden
* @date 2009-04-28
*
* $LicenseInfo:firstyear=2006&license=viewergpl$
*
* Copyright (c) 2006-2009, Linden Research, Inc.
*
* Second Life Viewer Source Code
* The source code in this file ("Source Code") is provided by Linden Lab
* to you under the terms of the GNU General Public License, version 2.0
* ("GPL"), unless you have obtained a separate licensing agreement
* ("Other License"), formally executed by you and Linden Lab. Terms of
* the GPL can be found in doc/GPL-license.txt in this distribution, or
* online at http://secondlifegrid.net/programs/open_source/licensing/gplv2
*
* There are special exceptions to the terms and conditions of the GPL as
* it is applied to this Source Code. View the full text of the exception
* in the file doc/FLOSS-exception.txt in this software distribution, or
* online at
* http://secondlifegrid.net/programs/open_source/licensing/flossexception
*
* By copying, modifying or distributing this software, you acknowledge
* that you have read and understood your obligations described above,
* and agree to abide by those obligations.
*
* ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
* WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
* COMPLETENESS OR PERFORMANCE.
* $/LicenseInfo$
*/
// Precompiled header: almost always required for newview cpp files
#include <list>
#include <map>
#include <algorithm>
// Class to test
#include "../llimageworker.h"
// For timer class
#include "../llcommon/lltimer.h"
// Tut header
#include "../test/lltut.h"
// -------------------------------------------------------------------------------------------
// Stubbing: Declarations required to link and run the class being tested
// Notes:
// * Add here stubbed implementation of the few classes and methods used in the class to be tested
// * Add as little as possible (let the link errors guide you)
// * Do not make any assumption as to how those classes or methods work (i.e. don't copy/paste code)
// * A simulator for a class can be implemented here. Please comment and document thoroughly.
LLImageBase::LLImageBase() {}
LLImageBase::~LLImageBase() {}
void LLImageBase::dump() { }
void LLImageBase::sanityCheck() { }
void LLImageBase::deleteData() { }
U8* LLImageBase::allocateData(S32 size) { return NULL; }
U8* LLImageBase::reallocateData(S32 size) { return NULL; }
LLImageRaw::LLImageRaw(U16 width, U16 height, S8 components) { }
LLImageRaw::~LLImageRaw() { }
void LLImageRaw::deleteData() { }
U8* LLImageRaw::allocateData(S32 size) { return NULL; }
U8* LLImageRaw::reallocateData(S32 size) { return NULL; }
// End Stubbing
// -------------------------------------------------------------------------------------------
// -------------------------------------------------------------------------------------------
// TUT
// -------------------------------------------------------------------------------------------
namespace tut
{
// Test wrapper declarations
// Note: We derive the responder class for 2 reasons:
// 1. It's a pure virtual class and we can't compile without completed() being implemented
// 2. We actually need a responder to test that the thread work test completed
// We implement this making no assumption on what's done in the thread or worker
// though, just that the responder's completed() method is called in the end.
// Note on responders: responders are ref counted and *will* be deleted by the request they are
// attached to when the queued request is deleted. The recommended way of using them is to
// create them when creating a request, put a callback method in completed() and not rely on
// anything to survive in the responder object once completed() has been called. Let the request
// do the deletion and clean up itself.
class responder_test : public LLImageDecodeThread::Responder
{
public:
responder_test(bool* res)
{
done = res;
*done = false;
}
virtual void completed(bool success, LLImageRaw* raw, LLImageRaw* aux)
{
*done = true;
}
private:
// This is what can be thought of as the minimal implementation of a responder
// Done will be switched to true when completed() is called and can be tested
// outside the responder. A better way of doing this is to store a callback here.
bool* done;
};
// Test wrapper declaration : decode thread
struct imagedecodethread_test
{
// Instance to be tested
LLImageDecodeThread* mThread;
// Constructor and destructor of the test wrapper
imagedecodethread_test()
{
mThread = NULL;
}
~imagedecodethread_test()
{
delete mThread;
}
};
// Test wrapper declaration : image worker
// Note: this class is not meant to be instantiated outside an LLImageDecodeThread instance
// but it's not a bad idea to get its public API a good shake as part of a thorough unit test set.
// Some gotcha with the destructor though (see below).
struct imagerequest_test
{
// Instance to be tested
LLImageDecodeThread::ImageRequest* mRequest;
bool done;
// Constructor and destructor of the test wrapper
imagerequest_test()
{
done = false;
mRequest = new LLImageDecodeThread::ImageRequest(0, 0,
LLQueuedThread::PRIORITY_NORMAL, 0, FALSE,
new responder_test(&done));
}
~imagerequest_test()
{
// We should delete the object *but*, because its destructor is protected, that cannot be
// done from outside an LLImageDecodeThread instance... So we leak memory here... It's fine...
//delete mRequest;
}
};
// Tut templating thingamagic: test group, object and test instance
typedef test_group<imagedecodethread_test> imagedecodethread_t;
typedef imagedecodethread_t::object imagedecodethread_object_t;
tut::imagedecodethread_t tut_imagedecodethread("imagedecodethread");
typedef test_group<imagerequest_test> imagerequest_t;
typedef imagerequest_t::object imagerequest_object_t;
tut::imagerequest_t tut_imagerequest("imagerequest");
// ---------------------------------------------------------------------------------------
// Test functions
// Notes:
// * Test as many as you possibly can without requiring a full blown simulation of everything
// * The tests are executed in sequence so the test instance state may change between calls
// * Remember that you cannot test private methods with tut
// ---------------------------------------------------------------------------------------
// ---------------------------------------------------------------------------------------
// Test the LLImageDecodeThread interface
// ---------------------------------------------------------------------------------------
//
// Note on Unit Testing Queued Thread Classes
//
// Since methods on such a class are called on a separate loop and that we can't insert tut
// ensure() calls in there, we exercise the class with 2 sets of tests:
// - 1: Test as a single threaded instance: We declare the class but ask for no thread
// to be spawned (easy with LLThreads since there's a boolean argument on the constructor
// just for that). We can then unit test each public method like we do on a normal class.
// - 2: Test as a threaded instance: We let the thread launch and check that its external
// behavior is as expected (i.e. it runs, can accept a work order and processes
// it). Typically though there's no guarantee that this exercises all the methods of the
// class which is why we also need the previous "non threaded" set of unit tests for
// complete coverage.
//
// ---------------------------------------------------------------------------------------
template<> template<>
void imagedecodethread_object_t::test<1>()
{
// Test a *non threaded* instance of the class
mThread = new LLImageDecodeThread(false);
ensure("LLImageDecodeThread: non threaded constructor failed", mThread != NULL);
// Test that we start with an empty list right at creation
ensure("LLImageDecodeThread: non threaded init state incorrect", mThread->tut_size() == 0);
// Insert something in the queue
bool done = false;
LLImageDecodeThread::handle_t decodeHandle = mThread->decodeImage(NULL, LLQueuedThread::PRIORITY_NORMAL, 0, FALSE, new responder_test(&done));
// Verifies we got a valid handle
ensure("LLImageDecodeThread: non threaded decodeImage(), returned handle is null", decodeHandle != 0);
// Verifies that we do now have something in the queued list
ensure("LLImageDecodeThread: non threaded decodeImage() insertion in threaded list failed", mThread->tut_size() == 1);
// Trigger queue handling "manually" (on a threaded instance, this is done on the thread loop)
S32 res = mThread->update(0);
// Verifies that we successfully handled the list
ensure("LLImageDecodeThread: non threaded update() list handling test failed", res == 0);
// Verifies that the list is now empty
ensure("LLImageDecodeThread: non threaded update() list emptying test failed", mThread->tut_size() == 0);
}
template<> template<>
void imagedecodethread_object_t::test<2>()
{
// Test a *threaded* instance of the class
mThread = new LLImageDecodeThread(true);
ensure("LLImageDecodeThread: threaded constructor failed", mThread != NULL);
// Test that we start with an empty list right at creation
ensure("LLImageDecodeThread: threaded init state incorrect", mThread->tut_size() == 0);
// Insert something in the queue
bool done = false;
LLImageDecodeThread::handle_t decodeHandle = mThread->decodeImage(NULL, LLQueuedThread::PRIORITY_NORMAL, 0, FALSE, new responder_test(&done));
// Verifies we get back a valid handle
ensure("LLImageDecodeThread: threaded decodeImage(), returned handle is null", decodeHandle != 0);
// Wait a little so to simulate the main thread doing something on its main loop...
ms_sleep(500); // 500 milliseconds
// Verifies that the responder has *not* been called yet in the meantime
ensure("LLImageDecodeThread: responder creation failed", done == false);
// Ask the thread to update: that means tells the queue to check itself and creates work requests
mThread->update(1);
// Wait till the thread has time to handle the work order (though it doesn't do much per work order...)
const U32 INCREMENT_TIME = 500; // 500 milliseconds
const U32 MAX_TIME = 20 * INCREMENT_TIME; // Do the loop 20 times max, i.e. wait 10 seconds but no more
U32 total_time = 0;
while ((done == false) && (total_time < MAX_TIME))
{
ms_sleep(INCREMENT_TIME);
total_time += INCREMENT_TIME;
}
// Verifies that the responder has now been called
ensure("LLImageDecodeThread: threaded work unit not processed", done == true);
}
// ---------------------------------------------------------------------------------------
// Test the LLImageDecodeThread::ImageRequest interface
// ---------------------------------------------------------------------------------------
template<> template<>
void imagerequest_object_t::test<1>()
{
// Test that we start with a correct request at creation
ensure("LLImageDecodeThread::ImageRequest::ImageRequest() constructor test failed", mRequest->tut_isOK());
bool res = mRequest->processRequest();
// Verifies that we processed the request successfully
ensure("LLImageDecodeThread::ImageRequest::processRequest() processing request test failed", res == true);
// Check that we can call the finishing call safely
try {
mRequest->finishRequest(false);
} catch (...) {
fail("LLImageDecodeThread::ImageRequest::finishRequest() test failed");
}
}
}