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QFileInfo: harmonize QFileInfo() and QFileInfo("")

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If a QFileInfo was constructed with an empty path, which could happen
with QFileInfo(QFile()) or via QDir, etc., then it would issue system
calls to empty paths and could even produce warnings. This commit makes
am empty path name be the same as a default-constructed QFileInfo and
corrects the use if 0 for ownerId and groupId to match the
documentation.

[ChangeLog][Important Behavior Changes] QFileInfo on empty strings now
behaves like the default-constructed QFileInfo. Notably, path() will now
be the empty string too, instead of ".", which means absoluteFilePath()
is no longer the current working directory.

Change-Id: I8d96dea9955d4c749b99fffd14ce34968b1d9bbf
Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
This commit is contained in:
Thiago Macieira 2017-07-04 11:39:07 -07:00
parent d3393ce258
commit 6504bc6bbc
4 changed files with 182 additions and 177 deletions
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181
src/corelib/io/qfileinfo.cpp
View File

@ -591,9 +591,6 @@ QString QFileInfo::absolutePath() const
if (d->isDefaultConstructed) { if (d->isDefaultConstructed) {
return QLatin1String(""); return QLatin1String("");
} else if (d->fileEntry.isEmpty()) {
qWarning("QFileInfo::absolutePath: Constructed with empty filename");
return QLatin1String("");
} }
return d->getFileName(QAbstractFileEngine::AbsolutePathName); return d->getFileName(QAbstractFileEngine::AbsolutePathName);
} }
@ -913,14 +910,10 @@ QDir QFileInfo::absoluteDir() const
bool QFileInfo::isReadable() const bool QFileInfo::isReadable() const
{ {
Q_D(const QFileInfo); Q_D(const QFileInfo);
if (d->isDefaultConstructed) return d->checkAttribute<bool>(
return false; QFileSystemMetaData::UserReadPermission,
if (d->fileEngine == 0) { [d]() { return (d->metaData.permissions() & QFile::ReadUser) != 0; },
if (!d->cache_enabled || !d->metaData.hasFlags(QFileSystemMetaData::UserReadPermission)) [d]() { return d->getFileFlags(QAbstractFileEngine::ReadUserPerm); });
QFileSystemEngine::fillMetaData(d->fileEntry, d->metaData, QFileSystemMetaData::UserReadPermission);
return (d->metaData.permissions() & QFile::ReadUser) != 0;
}
return d->getFileFlags(QAbstractFileEngine::ReadUserPerm);
} }
/*! /*!
@ -934,14 +927,10 @@ bool QFileInfo::isReadable() const
bool QFileInfo::isWritable() const bool QFileInfo::isWritable() const
{ {
Q_D(const QFileInfo); Q_D(const QFileInfo);
if (d->isDefaultConstructed) return d->checkAttribute<bool>(
return false; QFileSystemMetaData::UserWritePermission,
if (d->fileEngine == 0) { [d]() { return (d->metaData.permissions() & QFile::WriteUser) != 0; },
if (!d->cache_enabled || !d->metaData.hasFlags(QFileSystemMetaData::UserWritePermission)) [d]() { return d->getFileFlags(QAbstractFileEngine::WriteUserPerm); });
QFileSystemEngine::fillMetaData(d->fileEntry, d->metaData, QFileSystemMetaData::UserWritePermission);
return (d->metaData.permissions() & QFile::WriteUser) != 0;
}
return d->getFileFlags(QAbstractFileEngine::WriteUserPerm);
} }
/*! /*!
@ -952,14 +941,10 @@ bool QFileInfo::isWritable() const
bool QFileInfo::isExecutable() const bool QFileInfo::isExecutable() const
{ {
Q_D(const QFileInfo); Q_D(const QFileInfo);
if (d->isDefaultConstructed) return d->checkAttribute<bool>(
return false; QFileSystemMetaData::UserExecutePermission,
if (d->fileEngine == 0) { [d]() { return (d->metaData.permissions() & QFile::ExeUser) != 0; },
if (!d->cache_enabled || !d->metaData.hasFlags(QFileSystemMetaData::UserExecutePermission)) [d]() { return d->getFileFlags(QAbstractFileEngine::ExeUserPerm); });
QFileSystemEngine::fillMetaData(d->fileEntry, d->metaData, QFileSystemMetaData::UserExecutePermission);
return (d->metaData.permissions() & QFile::ExeUser) != 0;
}
return d->getFileFlags(QAbstractFileEngine::ExeUserPerm);
} }
/*! /*!
@ -971,14 +956,10 @@ bool QFileInfo::isExecutable() const
bool QFileInfo::isHidden() const bool QFileInfo::isHidden() const
{ {
Q_D(const QFileInfo); Q_D(const QFileInfo);
if (d->isDefaultConstructed) return d->checkAttribute<bool>(
return false; QFileSystemMetaData::HiddenAttribute,
if (d->fileEngine == 0) { [d]() { return d->metaData.isHidden(); },
if (!d->cache_enabled || !d->metaData.hasFlags(QFileSystemMetaData::HiddenAttribute)) [d]() { return d->getFileFlags(QAbstractFileEngine::HiddenFlag); });
QFileSystemEngine::fillMetaData(d->fileEntry, d->metaData, QFileSystemMetaData::HiddenAttribute);
return d->metaData.isHidden();
}
return d->getFileFlags(QAbstractFileEngine::HiddenFlag);
} }
/*! /*!
@ -1014,14 +995,10 @@ bool QFileInfo::isNativePath() const
bool QFileInfo::isFile() const bool QFileInfo::isFile() const
{ {
Q_D(const QFileInfo); Q_D(const QFileInfo);
if (d->isDefaultConstructed) return d->checkAttribute<bool>(
return false; QFileSystemMetaData::FileType,
if (d->fileEngine == 0) { [d]() { return d->metaData.isFile(); },
if (!d->cache_enabled || !d->metaData.hasFlags(QFileSystemMetaData::FileType)) [d]() { return d->getFileFlags(QAbstractFileEngine::FileType); });
QFileSystemEngine::fillMetaData(d->fileEntry, d->metaData, QFileSystemMetaData::FileType);
return d->metaData.isFile();
}
return d->getFileFlags(QAbstractFileEngine::FileType);
} }
/*! /*!
@ -1033,14 +1010,10 @@ bool QFileInfo::isFile() const
bool QFileInfo::isDir() const bool QFileInfo::isDir() const
{ {
Q_D(const QFileInfo); Q_D(const QFileInfo);
if (d->isDefaultConstructed) return d->checkAttribute<bool>(
return false; QFileSystemMetaData::DirectoryType,
if (d->fileEngine == 0) { [d]() { return d->metaData.isDirectory(); },
if (!d->cache_enabled || !d->metaData.hasFlags(QFileSystemMetaData::DirectoryType)) [d]() { return d->getFileFlags(QAbstractFileEngine::DirectoryType); });
QFileSystemEngine::fillMetaData(d->fileEntry, d->metaData, QFileSystemMetaData::DirectoryType);
return d->metaData.isDirectory();
}
return d->getFileFlags(QAbstractFileEngine::DirectoryType);
} }
@ -1054,14 +1027,10 @@ bool QFileInfo::isDir() const
bool QFileInfo::isBundle() const bool QFileInfo::isBundle() const
{ {
Q_D(const QFileInfo); Q_D(const QFileInfo);
if (d->isDefaultConstructed) return d->checkAttribute<bool>(
return false; QFileSystemMetaData::BundleType,
if (d->fileEngine == 0) { [d]() { return d->metaData.isBundle(); },
if (!d->cache_enabled || !d->metaData.hasFlags(QFileSystemMetaData::BundleType)) [d]() { return d->getFileFlags(QAbstractFileEngine::BundleType); });
QFileSystemEngine::fillMetaData(d->fileEntry, d->metaData, QFileSystemMetaData::BundleType);
return d->metaData.isBundle();
}
return d->getFileFlags(QAbstractFileEngine::BundleType);
} }
/*! /*!
@ -1084,14 +1053,10 @@ bool QFileInfo::isBundle() const
bool QFileInfo::isSymLink() const bool QFileInfo::isSymLink() const
{ {
Q_D(const QFileInfo); Q_D(const QFileInfo);
if (d->isDefaultConstructed) return d->checkAttribute<bool>(
return false; QFileSystemMetaData::LegacyLinkType,
if (d->fileEngine == 0) { [d]() { return d->metaData.isLegacyLink(); },
if (!d->cache_enabled || !d->metaData.hasFlags(QFileSystemMetaData::LegacyLinkType)) [d]() { return d->getFileFlags(QAbstractFileEngine::LinkType); });
QFileSystemEngine::fillMetaData(d->fileEntry, d->metaData, QFileSystemMetaData::LegacyLinkType);
return d->metaData.isLegacyLink();
}
return d->getFileFlags(QAbstractFileEngine::LinkType);
} }
/*! /*!
@ -1103,7 +1068,7 @@ bool QFileInfo::isRoot() const
{ {
Q_D(const QFileInfo); Q_D(const QFileInfo);
if (d->isDefaultConstructed) if (d->isDefaultConstructed)
return true; return false;
if (d->fileEngine == 0) { if (d->fileEngine == 0) {
if (d->fileEntry.isRoot()) { if (d->fileEntry.isRoot()) {
#if defined(Q_OS_WIN) && !defined(Q_OS_WINRT) #if defined(Q_OS_WIN) && !defined(Q_OS_WINRT)
@ -1179,14 +1144,10 @@ QString QFileInfo::owner() const
uint QFileInfo::ownerId() const uint QFileInfo::ownerId() const
{ {
Q_D(const QFileInfo); Q_D(const QFileInfo);
if (d->isDefaultConstructed) return d->checkAttribute(uint(-2),
return 0; QFileSystemMetaData::UserId,
if (d->fileEngine == 0) { [d]() { return d->metaData.userId(); },
if (!d->cache_enabled || !d->metaData.hasFlags(QFileSystemMetaData::UserId)) [d]() { return d->fileEngine->ownerId(QAbstractFileEngine::OwnerUser); });
QFileSystemEngine::fillMetaData(d->fileEntry, d->metaData, QFileSystemMetaData::UserId);
return d->metaData.userId();
}
return d->fileEngine->ownerId(QAbstractFileEngine::OwnerUser);
} }
/*! /*!
@ -1218,14 +1179,10 @@ QString QFileInfo::group() const
uint QFileInfo::groupId() const uint QFileInfo::groupId() const
{ {
Q_D(const QFileInfo); Q_D(const QFileInfo);
if (d->isDefaultConstructed) return d->checkAttribute(uint(-2),
return 0; QFileSystemMetaData::GroupId,
if (d->fileEngine == 0) { [d]() { return d->metaData.groupId(); },
if (!d->cache_enabled || !d->metaData.hasFlags(QFileSystemMetaData::GroupId)) [d]() { return d->fileEngine->ownerId(QAbstractFileEngine::OwnerGroup); });
QFileSystemEngine::fillMetaData(d->fileEntry, d->metaData, QFileSystemMetaData::GroupId);
return d->metaData.groupId();
}
return d->fileEngine->ownerId(QAbstractFileEngine::OwnerGroup);
} }
/*! /*!
@ -1247,16 +1204,15 @@ uint QFileInfo::groupId() const
bool QFileInfo::permission(QFile::Permissions permissions) const bool QFileInfo::permission(QFile::Permissions permissions) const
{ {
Q_D(const QFileInfo); Q_D(const QFileInfo);
if (d->isDefaultConstructed) // the QFileSystemMetaData::MetaDataFlag and QFile::Permissions overlap, so just cast.
return false; auto fseFlags = QFileSystemMetaData::MetaDataFlag(int(permissions));
if (d->fileEngine == 0) { auto feFlags = QAbstractFileEngine::FileFlags(int(permissions));
// the QFileSystemMetaData::MetaDataFlag and QFile::Permissions overlap, so just static cast. return d->checkAttribute<bool>(
QFileSystemMetaData::MetaDataFlag permissionFlags = static_cast<QFileSystemMetaData::MetaDataFlag>((int)permissions); fseFlags,
if (!d->cache_enabled || !d->metaData.hasFlags(permissionFlags)) [=]() { return (d->metaData.permissions() & permissions) == permissions; },
QFileSystemEngine::fillMetaData(d->fileEntry, d->metaData, permissionFlags); [=]() {
return (d->metaData.permissions() & permissions) == permissions; return d->getFileFlags(feFlags) == uint(permissions);
} });
return d->getFileFlags(QAbstractFileEngine::FileFlags((int)permissions)) == (uint)permissions;
} }
/*! /*!
@ -1269,14 +1225,12 @@ bool QFileInfo::permission(QFile::Permissions permissions) const
QFile::Permissions QFileInfo::permissions() const QFile::Permissions QFileInfo::permissions() const
{ {
Q_D(const QFileInfo); Q_D(const QFileInfo);
if (d->isDefaultConstructed) return d->checkAttribute<QFile::Permissions>(
return 0; QFileSystemMetaData::Permissions,
if (d->fileEngine == 0) { [d]() { return d->metaData.permissions(); },
if (!d->cache_enabled || !d->metaData.hasFlags(QFileSystemMetaData::Permissions)) [d]() {
QFileSystemEngine::fillMetaData(d->fileEntry, d->metaData, QFileSystemMetaData::Permissions);
return d->metaData.permissions();
}
return QFile::Permissions(d->getFileFlags(QAbstractFileEngine::PermsMask) & QAbstractFileEngine::PermsMask); return QFile::Permissions(d->getFileFlags(QAbstractFileEngine::PermsMask) & QAbstractFileEngine::PermsMask);
});
} }
@ -1289,18 +1243,16 @@ QFile::Permissions QFileInfo::permissions() const
qint64 QFileInfo::size() const qint64 QFileInfo::size() const
{ {
Q_D(const QFileInfo); Q_D(const QFileInfo);
if (d->isDefaultConstructed) return d->checkAttribute<qint64>(
return 0; QFileSystemMetaData::SizeAttribute,
if (d->fileEngine == 0) { [d]() { return d->metaData.size(); },
if (!d->cache_enabled || !d->metaData.hasFlags(QFileSystemMetaData::SizeAttribute)) [d]() {
QFileSystemEngine::fillMetaData(d->fileEntry, d->metaData, QFileSystemMetaData::SizeAttribute);
return d->metaData.size();
}
if (!d->getCachedFlag(QFileInfoPrivate::CachedSize)) { if (!d->getCachedFlag(QFileInfoPrivate::CachedSize)) {
d->setCachedFlag(QFileInfoPrivate::CachedSize); d->setCachedFlag(QFileInfoPrivate::CachedSize);
d->fileSize = d->fileEngine->size(); d->fileSize = d->fileEngine->size();
} }
return d->fileSize; return d->fileSize;
});
} }
#if QT_DEPRECATED_SINCE(5, 10) #if QT_DEPRECATED_SINCE(5, 10)
@ -1394,11 +1346,6 @@ QDateTime QFileInfo::fileTime(QFile::FileTime time) const
Q_D(const QFileInfo); Q_D(const QFileInfo);
auto fetime = QAbstractFileEngine::FileTime(time); auto fetime = QAbstractFileEngine::FileTime(time);
if (d->isDefaultConstructed)
return QDateTime();
if (d->fileEngine)
return d->getFileTime(fetime).toLocalTime();
QFileSystemMetaData::MetaDataFlags flag; QFileSystemMetaData::MetaDataFlags flag;
switch (time) { switch (time) {
case QFile::FileAccessTime: case QFile::FileAccessTime:
@ -1415,10 +1362,10 @@ QDateTime QFileInfo::fileTime(QFile::FileTime time) const
break; break;
} }
if (!d->cache_enabled || !d->metaData.hasFlags(flag)) return d->checkAttribute<QDateTime>(
if (!QFileSystemEngine::fillMetaData(d->fileEntry, d->metaData, flag)) flag,
return QDateTime(); [=]() { return d->metaData.fileTime(fetime).toLocalTime(); },
return d->metaData.fileTime(fetime).toLocalTime(); [=]() { return d->getFileTime(fetime).toLocalTime(); });
} }
/*! /*!

23
src/corelib/io/qfileinfo_p.h
View File

@ -103,7 +103,7 @@ public:
fileEngine(QFileSystemEngine::resolveEntryAndCreateLegacyEngine(fileEntry, metaData)), fileEngine(QFileSystemEngine::resolveEntryAndCreateLegacyEngine(fileEntry, metaData)),
cachedFlags(0), cachedFlags(0),
#ifndef QT_NO_FSFILEENGINE #ifndef QT_NO_FSFILEENGINE
isDefaultConstructed(false), isDefaultConstructed(file.isEmpty()),
#else #else
isDefaultConstructed(!fileEngine), isDefaultConstructed(!fileEngine),
#endif #endif
@ -179,6 +179,27 @@ public:
inline void setCachedFlag(uint c) const inline void setCachedFlag(uint c) const
{ if (cache_enabled) cachedFlags |= c; } { if (cache_enabled) cachedFlags |= c; }
template <typename Ret, typename FSLambda, typename EngineLambda>
Ret checkAttribute(Ret defaultValue, QFileSystemMetaData::MetaDataFlags fsFlags, const FSLambda &fsLambda,
const EngineLambda &engineLambda) const
{
if (isDefaultConstructed)
return defaultValue;
if (fileEngine)
return engineLambda();
if (!cache_enabled || !metaData.hasFlags(fsFlags)) {
QFileSystemEngine::fillMetaData(fileEntry, metaData, fsFlags);
// ignore errors, fillMetaData will have cleared the flags
}
return fsLambda();
}
template <typename Ret, typename FSLambda, typename EngineLambda>
Ret checkAttribute(QFileSystemMetaData::MetaDataFlags fsFlags, const FSLambda &fsLambda,
const EngineLambda &engineLambda) const
{
return checkAttribute(Ret(), fsFlags, fsLambda, engineLambda);
}
}; };
QT_END_NAMESPACE QT_END_NAMESPACE

4
src/corelib/io/qfilesystemengine.cpp
View File

@ -213,6 +213,8 @@ QString QFileSystemEngine::resolveUserName(const QFileSystemEntry &entry, QFileS
#else //(Q_OS_UNIX) #else //(Q_OS_UNIX)
if (!metaData.hasFlags(QFileSystemMetaData::UserId)) if (!metaData.hasFlags(QFileSystemMetaData::UserId))
QFileSystemEngine::fillMetaData(entry, metaData, QFileSystemMetaData::UserId); QFileSystemEngine::fillMetaData(entry, metaData, QFileSystemMetaData::UserId);
if (!metaData.exists())
return QString();
return resolveUserName(metaData.userId()); return resolveUserName(metaData.userId());
#endif #endif
} }
@ -226,6 +228,8 @@ QString QFileSystemEngine::resolveGroupName(const QFileSystemEntry &entry, QFile
#else //(Q_OS_UNIX) #else //(Q_OS_UNIX)
if (!metaData.hasFlags(QFileSystemMetaData::GroupId)) if (!metaData.hasFlags(QFileSystemMetaData::GroupId))
QFileSystemEngine::fillMetaData(entry, metaData, QFileSystemMetaData::GroupId); QFileSystemEngine::fillMetaData(entry, metaData, QFileSystemMetaData::GroupId);
if (!metaData.exists())
return QString();
return resolveGroupName(metaData.groupId()); return resolveGroupName(metaData.groupId());
#endif #endif
} }

119
tests/auto/corelib/io/qfileinfo/tst_qfileinfo.cpp
View File

@ -232,8 +232,9 @@ private slots:
#endif #endif
void group(); void group();
void invalidState_data();
void invalidState(); void invalidState();
void nonExistingFileDates(); void nonExistingFile();
private: private:
const QString m_currentDir; const QString m_currentDir;
@ -1366,7 +1367,7 @@ void tst_QFileInfo::isNativePath_data()
QTest::addColumn<bool>("isNativePath"); QTest::addColumn<bool>("isNativePath");
QTest::newRow("default-constructed") << QString() << false; QTest::newRow("default-constructed") << QString() << false;
QTest::newRow("empty") << QString("") << true; QTest::newRow("empty") << QString("") << false;
QTest::newRow("local root") << QString::fromLatin1("/") << true; QTest::newRow("local root") << QString::fromLatin1("/") << true;
QTest::newRow("local non-existent file") << QString::fromLatin1("/abrakadabra.boo") << true; QTest::newRow("local non-existent file") << QString::fromLatin1("/abrakadabra.boo") << true;
@ -1896,64 +1897,96 @@ void tst_QFileInfo::group()
QCOMPARE(fi.group(), expected); QCOMPARE(fi.group(), expected);
} }
void tst_QFileInfo::invalidState() static void stateCheck(const QFileInfo &info, const QString &dirname, const QString &filename)
{ {
// Shouldn't crash;
{
QFileInfo info;
QCOMPARE(info.size(), qint64(0)); QCOMPARE(info.size(), qint64(0));
QVERIFY(!info.exists()); QVERIFY(!info.exists());
info.setCaching(false); QString path;
QString abspath;
info.created(); if (!dirname.isEmpty()) {
info.birthTime(); path = ".";
info.metadataChangeTime(); abspath = dirname + '/' + filename;
info.lastRead();
info.lastModified();
} }
{ QCOMPARE(info.filePath(), filename);
QFileInfo info(""); QCOMPARE(info.absoluteFilePath(), abspath);
QCOMPARE(info.size(), qint64(0)); QCOMPARE(info.canonicalFilePath(), QString());
QVERIFY(!info.exists()); QCOMPARE(info.fileName(), filename);
QCOMPARE(info.baseName(), filename);
QCOMPARE(info.completeBaseName(), filename);
QCOMPARE(info.suffix(), QString());
QCOMPARE(info.bundleName(), QString());
QCOMPARE(info.completeSuffix(), QString());
info.setCaching(false); QVERIFY(info.isRelative());
QCOMPARE(info.path(), path);
QCOMPARE(info.absolutePath(), dirname);
QCOMPARE(info.dir().path(), ".");
info.created(); // these don't look right
info.birthTime(); QCOMPARE(info.canonicalPath(), path);
info.metadataChangeTime(); QCOMPARE(info.absoluteDir().path(), dirname.isEmpty() ? "." : dirname);
info.lastRead();
info.lastModified();
}
{ QVERIFY(!info.isReadable());
QFileInfo info("file-doesn't-really-exist.txt"); QVERIFY(!info.isWritable());
QCOMPARE(info.size(), qint64(0)); QVERIFY(!info.isExecutable());
QVERIFY(!info.exists()); QVERIFY(!info.isHidden());
QVERIFY(!info.isFile());
QVERIFY(!info.isDir());
QVERIFY(!info.isSymLink());
QVERIFY(!info.isBundle());
QVERIFY(!info.isRoot());
QCOMPARE(info.isNativePath(), !filename.isEmpty());
info.setCaching(false); QCOMPARE(info.readLink(), QString());
QCOMPARE(info.ownerId(), uint(-2));
QCOMPARE(info.groupId(), uint(-2));
QCOMPARE(info.owner(), QString());
QCOMPARE(info.group(), QString());
info.created(); QCOMPARE(info.permissions(), QFile::Permissions());
info.birthTime();
info.metadataChangeTime();
info.lastRead();
info.lastModified();
}
QVERIFY(true);
}
void tst_QFileInfo::nonExistingFileDates()
{
QFileInfo info("non-existing-file.foobar");
QVERIFY(!info.exists());
QVERIFY(!info.created().isValid()); QVERIFY(!info.created().isValid());
QVERIFY(!info.birthTime().isValid()); QVERIFY(!info.birthTime().isValid());
QVERIFY(!info.metadataChangeTime().isValid()); QVERIFY(!info.metadataChangeTime().isValid());
QVERIFY(!info.lastRead().isValid()); QVERIFY(!info.lastRead().isValid());
QVERIFY(!info.lastModified().isValid()); QVERIFY(!info.lastModified().isValid());
};
void tst_QFileInfo::invalidState_data()
{
QTest::addColumn<int>("mode");
QTest::newRow("default") << 0;
QTest::newRow("empty") << 1;
QTest::newRow("copy-of-default") << 2;
QTest::newRow("copy-of-empty") << 3;
}
void tst_QFileInfo::invalidState()
{
// Shouldn't crash or produce warnings
QFETCH(int, mode);
const QFileInfo &info = (mode & 1 ? QFileInfo("") : QFileInfo());
if (mode & 2) {
QFileInfo copy(info);
stateCheck(copy, QString(), QString());
} else {
stateCheck(info, QString(), QString());
}
}
void tst_QFileInfo::nonExistingFile()
{
QString dirname = QDir::currentPath();
QString cdirname = QFileInfo(dirname).canonicalFilePath();
if (dirname != cdirname)
QDir::setCurrent(cdirname); // chdir() to our canonical path
QString filename = "non-existing-file-foobar";
QFileInfo info(filename);
stateCheck(info, dirname, filename);
} }
QTEST_MAIN(tst_QFileInfo) QTEST_MAIN(tst_QFileInfo)