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/*
SPDX-FileCopyrightText: 2021 Friedrich W. H. Kossebau <kossebau@kde.org>
SPDX-License-Identifier: GPL-2.0-or-later
*/
#include <kusasciitextcodec.h>
// Qt
#include <QTest>
class KUsAsciiTextCodecTest : public QObject
{
Q_OBJECT
private Q_SLOTS:
void initTestCase();
void testBrokenBuiltinEncoding();
void testEncoding();
void testDecoding();
private:
QTextCodec *qtCodec = nullptr;
QTextCodec *ourCodec = nullptr;
};
void KUsAsciiTextCodecTest::initTestCase()
{
// default coming from Qt, if built with ICU
qtCodec = QTextCodec::codecForName("US-ASCII");
// QTextCodec constructor of the baseclass registers the instance, also for ownership.
// By the previous query for a US-ASCII codec the default one though
// is cached for further look-ups, so we have to remember our own explicitely.
ourCodec = new KUsAsciiTextCodec;
}
void KUsAsciiTextCodecTest::testBrokenBuiltinEncoding()
{
if (!qtCodec) {
QSKIP("Qt without built-in US-ASCII codec");
}
const QString failUnicodeText = QStringLiteral("Testnäme");
QTextCodec::ConverterState failConverterState;
// Only interested in what failConverterState will be changed to
qtCodec->fromUnicode(failUnicodeText.constData(), failUnicodeText.length(), &failConverterState);
// Bug seems fixed in Qt6
#if QT_VERSION >= QT_VERSION_CHECK(5, 15, 7)
// confirm the broken result 0, which rather should be 1
QCOMPARE(failConverterState.invalidChars, 1);
#else
QCOMPARE(failConverterState.invalidChars, 0);
#endif
}
void KUsAsciiTextCodecTest::testEncoding()
{
// compatible text
const QString successUnicodeText = QStringLiteral("Testname");
QTextCodec::ConverterState successConverterState;
const QByteArray successEncoded8Bit = ourCodec->fromUnicode(successUnicodeText.constData(), successUnicodeText.length(), &successConverterState);
const QByteArray successExpected8Bit = QByteArrayLiteral("Testname");
QCOMPARE(successConverterState.invalidChars, 0);
QCOMPARE(successEncoded8Bit, successExpected8Bit);
// incompatible text
const QString failUnicodeText = QStringLiteral("Testnäme");
QTextCodec::ConverterState failConverterState;
const QByteArray failEncoded8Bit = ourCodec->fromUnicode(failUnicodeText.constData(), failUnicodeText.length(), &failConverterState);
const QByteArray failExpected8Bit = QByteArrayLiteral("Testn?me");
QCOMPARE(failConverterState.invalidChars, 1);
QCOMPARE(failEncoded8Bit, failExpected8Bit);
}
void KUsAsciiTextCodecTest::testDecoding()
{
// compatible text
const QByteArray success8BitString = QByteArrayLiteral("Testname");
QTextCodec::ConverterState successConverterState;
const QString successUnicodeString = ourCodec->toUnicode(success8BitString.constData(), success8BitString.length(), &successConverterState);
const QString successExpectedString = QStringLiteral("Testname");
QCOMPARE(successConverterState.invalidChars, 0);
QCOMPARE(successUnicodeString, successExpectedString);
// incompatible text, with "ä" in latin1
/* clang-format off */
const QByteArray fail8BitString = QByteArrayLiteral("Testn""\xE4""me");
/* clang-format on */
QTextCodec::ConverterState failConverterState;
const QString failUnicodeString = ourCodec->toUnicode(fail8BitString.constData(), fail8BitString.length(), &failConverterState);
const QString failExpectedString = QStringLiteral("Testn?me");
QCOMPARE(failConverterState.invalidChars, 1);
QCOMPARE(failUnicodeString, failExpectedString);
}
QTEST_GUILESS_MAIN(KUsAsciiTextCodecTest)
#include "kusasciitextcodectest.moc"
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