/*
Copyright (C) 2005-2014 Sergey A. Tachenov

This file is part of QuaZIP test suite.

QuaZIP is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.

QuaZIP 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 Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public License
along with QuaZIP.  If not, see <http://www.gnu.org/licenses/>.

See COPYING file for the full LGPL text.

Original ZIP package is copyrighted by Gilles Vollant and contributors,
see quazip/(un)zip.h files for details. Basically it's the zlib license.
*/

#include "testquaziodevice.h"
#include <quazip/quaziodevice.h>
#include <QBuffer>
#include <QByteArray>
#include <QtTest/QtTest>

void TestQuaZIODevice::read()
{
    QByteArray buf(256, 0);
    z_stream zouts;
    zouts.zalloc = (alloc_func) NULL;
    zouts.zfree = (free_func) NULL;
    zouts.opaque = NULL;
    deflateInit(&zouts, Z_DEFAULT_COMPRESSION);
    zouts.next_in = reinterpret_cast<Bytef*>(const_cast<char*>("test"));
    zouts.avail_in = 4;
    zouts.next_out = reinterpret_cast<Bytef*>(buf.data());
    zouts.avail_out = buf.size();
    deflate(&zouts, Z_FINISH);
    deflateEnd(&zouts);
    QBuffer testBuffer(&buf);
    testBuffer.open(QIODevice::ReadOnly);
    QuaZIODevice testDevice(&testBuffer);
    QVERIFY(testDevice.open(QIODevice::ReadOnly));
    char outBuf[5];
    QCOMPARE(testDevice.read(outBuf, 5), static_cast<qint64>(4));
    testDevice.close();
    QVERIFY(!testDevice.isOpen());
}

void TestQuaZIODevice::write()
{
    QByteArray buf(256, 0);
    QBuffer testBuffer(&buf);
    testBuffer.open(QIODevice::WriteOnly);
    QuaZIODevice *testDevice = new QuaZIODevice(&testBuffer);
    QCOMPARE(testDevice->getIoDevice(), &testBuffer);
    QVERIFY(testDevice->open(QIODevice::WriteOnly));
    QCOMPARE(testDevice->write("test", 4), static_cast<qint64>(4));
    testDevice->close();
    QVERIFY(!testDevice->isOpen());
    z_stream zins;
    zins.zalloc = (alloc_func) NULL;
    zins.zfree = (free_func) NULL;
    zins.opaque = NULL;
    inflateInit(&zins);
    zins.next_in = reinterpret_cast<Bytef*>(buf.data());
    zins.avail_in = testBuffer.pos();
    char outBuf[5];
    zins.next_out = reinterpret_cast<Bytef*>(outBuf);
    zins.avail_out = 5;
    inflate(&zins, Z_FINISH);
    inflateEnd(&zins);
    int size = 5 - zins.avail_out;
    QCOMPARE(size, 4);
    outBuf[4] = '\0';
    QCOMPARE(static_cast<const char*>(outBuf), "test");
    delete testDevice; // Test D0 destructor
}