121 lines
3.6 KiB
C++
121 lines
3.6 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2014 David Faure <david.faure@kdab.com>
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** Contact: https://www.qt.io/licensing/
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**
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** This file is part of the test suite of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:GPL-EXCEPT$
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** Commercial License Usage
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** Licensees holding valid commercial Qt licenses may use this file in
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** accordance with the commercial license agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and The Qt Company. For licensing terms
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** and conditions see https://www.qt.io/terms-conditions. For further
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** information use the contact form at https://www.qt.io/contact-us.
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**
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** GNU General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU
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** General Public License version 3 as published by the Free Software
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** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
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** included in the packaging of this file. Please review the following
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** information to ensure the GNU General Public License requirements will
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** be met: https://www.gnu.org/licenses/gpl-3.0.html.
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#include <QDebug>
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#include <QIODevice>
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#include <QString>
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#include <QBuffer>
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#include <qtest.h>
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class tst_qtextstream : public QObject
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{
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Q_OBJECT
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private slots:
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void writeSingleChar_data();
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void writeSingleChar();
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private:
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};
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enum Output { StringOutput, DeviceOutput };
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Q_DECLARE_METATYPE(Output);
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enum Input { CharStarInput, QStringInput, CharInput, QCharInput };
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Q_DECLARE_METATYPE(Input);
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void tst_qtextstream::writeSingleChar_data()
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{
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QTest::addColumn<Output>("output");
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QTest::addColumn<Input>("input");
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QTest::newRow("string_charstar") << StringOutput << CharStarInput;
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QTest::newRow("string_string") << StringOutput << QStringInput;
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QTest::newRow("string_char") << StringOutput << CharInput;
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QTest::newRow("string_qchar") << StringOutput << QCharInput;
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QTest::newRow("device_charstar") << DeviceOutput << CharStarInput;
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QTest::newRow("device_string") << DeviceOutput << QStringInput;
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QTest::newRow("device_char") << DeviceOutput << CharInput;
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QTest::newRow("device_qchar") << DeviceOutput << QCharInput;
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}
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void tst_qtextstream::writeSingleChar()
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{
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QFETCH(Output, output);
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QFETCH(Input, input);
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QString str;
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QBuffer buffer;
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QTextStream stream;
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if (output == StringOutput) {
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stream.setString(&str, QIODevice::WriteOnly);
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} else {
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QVERIFY(buffer.open(QIODevice::WriteOnly));
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stream.setDevice(&buffer);
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}
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// Test many different ways to write a single char into a QTextStream
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QString inputString = "h";
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const int amount = 100000;
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switch (input) {
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case CharStarInput:
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QBENCHMARK {
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for (qint64 i = 0; i < amount; ++i)
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stream << "h";
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}
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break;
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case QStringInput:
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QBENCHMARK {
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for (qint64 i = 0; i < amount; ++i)
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stream << inputString;
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}
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break;
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case CharInput:
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QBENCHMARK {
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for (qint64 i = 0; i < amount; ++i)
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stream << 'h';
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}
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break;
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case QCharInput:
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QBENCHMARK {
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for (qint64 i = 0; i < amount; ++i)
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stream << QChar('h');
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}
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break;
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}
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QString result;
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if (output == StringOutput)
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result = str;
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else
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result = QString(buffer.data());
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QCOMPARE(result.left(10), QString("hhhhhhhhhh"));
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}
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QTEST_MAIN(tst_qtextstream)
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#include "main.moc"
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