qt 6.5.1 original

tests/auto/corelib/text/qbytedatabuffer/CMakeLists.txt

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+# Copyright (C) 2022 The Qt Company Ltd.
+# SPDX-License-Identifier: BSD-3-Clause
+
+#####################################################################
+## tst_qbytedatabuffer Test:
+#####################################################################
+
+qt_internal_add_test(tst_qbytedatabuffer
+    SOURCES
+        tst_qbytedatabuffer.cpp
+    LIBRARIES
+        Qt::CorePrivate
+)

tests/auto/corelib/text/qbytedatabuffer/tst_qbytedatabuffer.cpp

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+// Copyright (C) 2012 Hewlett-Packard Development Company, L.P.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
+
+#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"