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// Copyright (C) 2012 Hewlett-Packard Development Company, L.P.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
#include <QTest>
#include <private/qbytedata_p.h>
// for QIODEVICE_BUFFERSIZE macro (== 16384):
#include <private/qiodevice_p.h>
class tst_QByteDataBuffer : public QObject
{
Q_OBJECT
private Q_SLOTS:
void canReadLine();
void positionHandling();
void appendBuffer();
void moveAppendBuffer();
void readCompleteBuffer_data();
void readCompleteBuffer();
void readPartialBuffer_data();
void readPartialBuffer();
void readPointer();
private:
void readBuffer(int size, int readSize);
};
void tst_QByteDataBuffer::canReadLine()
{
QByteDataBuffer buf;
buf.append(QByteArray("a"));
buf.append(QByteArray("\nb"));
QVERIFY(buf.canReadLine());
QVERIFY(buf.getChar() == 'a');
QVERIFY(buf.canReadLine());
QVERIFY(buf.getChar() == '\n');
QVERIFY(!buf.canReadLine());
}
void tst_QByteDataBuffer::positionHandling()
{
QByteDataBuffer buf;
buf.append(QByteArray("abc"));
buf.append(QByteArray("def"));
QCOMPARE(buf.byteAmount(), (qlonglong)6);
QCOMPARE(buf.sizeNextBlock(), (qlonglong)3);
QCOMPARE(buf.getChar(), 'a');
QCOMPARE(buf.byteAmount(), (qlonglong)5);
QCOMPARE(buf.sizeNextBlock(), (qlonglong)2);
QVERIFY(!strcmp(buf[0].constData(), "bc"));
QCOMPARE(buf.getChar(), 'b');
QCOMPARE(buf.byteAmount(), (qlonglong)4);
QCOMPARE(buf.sizeNextBlock(), (qlonglong)1);
QByteArray tmp("ab");
buf.prepend(tmp);
QCOMPARE(buf.byteAmount(), (qlonglong)6);
QVERIFY(!strcmp(buf.readAll().constData(), "abcdef"));
QCOMPARE(buf.byteAmount(), (qlonglong)0);
QByteDataBuffer buf2;
buf2.append(QByteArray("abc"));
buf2.getChar();
QCOMPARE(buf2.read(), QByteArray("bc"));
}
void tst_QByteDataBuffer::appendBuffer()
{
QByteDataBuffer buf;
QByteArray local("\1\2\3");
buf.append(local);
buf.getChar();
QByteDataBuffer tmp;
tmp.append(buf);
QCOMPARE(tmp.readAll(), buf.readAll());
}
void tst_QByteDataBuffer::moveAppendBuffer()
{
QByteDataBuffer buf;
buf.append(QByteArray("hello world"));
QCOMPARE(buf.getChar(), 'h');
QByteDataBuffer tmp;
tmp.append(std::move(buf));
QCOMPARE(tmp.readAll(), "ello world");
}
static QByteArray makeByteArray(int size)
{
QByteArray array;
array.resize(size);
char *data = array.data();
for (int i = 0; i < size; ++i)
data[i] = i % 256;
return array;
}
void tst_QByteDataBuffer::readBuffer(int size, int readSize)
{
QByteArray data = makeByteArray(size);
QByteDataBuffer buf;
buf.append(data);
QByteArray tmp;
tmp.resize(size);
QBENCHMARK_ONCE {
for (int i = 0; i < (size - 1) / readSize + 1; ++i)
buf.read(tmp.data() + i * readSize, readSize);
}
QCOMPARE(data.size(), tmp.size());
QCOMPARE(data, tmp);
}
void tst_QByteDataBuffer::readCompleteBuffer_data()
{
QTest::addColumn<int>("size");
QTest::newRow("10B") << (int)10;
QTest::newRow("1MB") << (int)1e6;
QTest::newRow("5MB") << (int)5e6;
QTest::newRow("10MB") << (int)10e6;
}
void tst_QByteDataBuffer::readCompleteBuffer()
{
QFETCH(int, size);
readBuffer(size, size);
}
void tst_QByteDataBuffer::readPartialBuffer_data()
{
readCompleteBuffer_data();
}
void tst_QByteDataBuffer::readPartialBuffer()
{
QFETCH(int, size);
// QIODevice::readAll() reads in QIODEVICE_BUFFERSIZE size
// increments.
readBuffer(size, QIODEVICE_BUFFERSIZE);
}
void tst_QByteDataBuffer::readPointer()
{
QByteDataBuffer buffer;
auto view = buffer.readPointer();
QCOMPARE(view.size(), 0);
QCOMPARE(view, "");
buffer.append("Hello");
buffer.append("World");
qint64 initialSize = buffer.byteAmount();
view = buffer.readPointer();
QCOMPARE(initialSize, buffer.byteAmount());
QCOMPARE(view.size(), 5);
QCOMPARE(view, "Hello");
buffer.advanceReadPointer(2);
view = buffer.readPointer();
QCOMPARE(initialSize - 2, buffer.byteAmount());
QCOMPARE(view.size(), 3);
QCOMPARE(view, "llo");
buffer.advanceReadPointer(3);
view = buffer.readPointer();
QCOMPARE(initialSize - 5, buffer.byteAmount());
QCOMPARE(view.size(), 5);
QCOMPARE(view, "World");
buffer.advanceReadPointer(5);
view = buffer.readPointer();
QVERIFY(buffer.isEmpty());
QCOMPARE(view.size(), 0);
QCOMPARE(view, "");
// Advance past the current view's size
buffer.append("Hello");
buffer.append("World");
buffer.advanceReadPointer(6);
view = buffer.readPointer();
QCOMPARE(view, "orld");
QCOMPARE(buffer.byteAmount(), 4);
// Advance past the end of all contained data
buffer.advanceReadPointer(6);
view = buffer.readPointer();
QCOMPARE(view, "");
}
QTEST_MAIN(tst_QByteDataBuffer)
#include "tst_qbytedatabuffer.moc"
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