Remove network dependency for tests with UNC paths

Windows VMs are provisioned with shared folders that are available as

\\${COMPUTERNAME}\testshare(writable)

so we don't need to access a remote SMB server over network anymore just
to test whether our string-parsing code handles UNC paths correctly.

Add a QTest::uncServerName() helper function to the shared filesystem.h
header and use that instead of QtNetworkSettings::winServerName. The
latter is now only used in tst_NetworkSelfTest::smbServer().

Pick-to: 6.4
Change-Id: Id0da66369ad0f4a980d612de2a31a391f1192253
Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>

tests/auto/corelib/io/qdir/tst_qdir.cpp

@@ -17,7 +17,6 @@
 
 #if defined(Q_OS_WIN)
 #include <QtCore/private/qfsfileengine_p.h>
-#include "../../../network-settings.h"
 #endif
 
 #if defined(Q_OS_WIN) && !defined(_WIN32_WINNT)
@@ -627,7 +626,7 @@ void tst_QDir::exists_data()
     QTest::newRow("simple dir") << (m_dataPath + "/resources") << true;
     QTest::newRow("simple dir with slash") << (m_dataPath + "/resources/") << true;
 #if defined(Q_OS_WIN)
-    const QString uncRoot = QStringLiteral("//") + QtNetworkSettings::winServerName();
+    const QString uncRoot = QStringLiteral("//") + QTest::uncServerName();
     QTest::newRow("unc 1") << uncRoot << true;
     QTest::newRow("unc 2") << uncRoot + QLatin1Char('/') << true;
     QTest::newRow("unc 3") << uncRoot + "/testshare" << true;
@@ -1020,7 +1019,7 @@ void tst_QDir::entryListSimple_data()
     QTest::newRow("simple dir with slash") << (m_dataPath + "/resources/") << 2;
 
 #if defined(Q_OS_WIN)
-    const QString uncRoot = QStringLiteral("//") + QtNetworkSettings::winServerName();
+    const QString uncRoot = QStringLiteral("//") + QTest::uncServerName();
     QTest::newRow("unc 1") << uncRoot << 2;
     QTest::newRow("unc 2") << uncRoot + QLatin1Char('/') << 2;
     QTest::newRow("unc 3") << uncRoot + "/testshare" << 2;
@@ -2393,7 +2392,7 @@ void tst_QDir::cdBelowRoot_data()
     const QString systemRoot = QString::fromLocal8Bit(qgetenv("SystemRoot"));
     QTest::newRow("windows-drive")
         << systemDrive << systemRoot.mid(3) << QDir::cleanPath(systemRoot);
-    const QString uncRoot = QStringLiteral("//") + QtNetworkSettings::winServerName();
+    const QString uncRoot = QStringLiteral("//") + QTest::uncServerName();
     const QString testDirectory = QStringLiteral("testshare");
     QTest::newRow("windows-share")
         << uncRoot << testDirectory << QDir::cleanPath(uncRoot + QLatin1Char('/') + testDirectory);

tests/auto/corelib/io/qdiriterator/tst_qdiriterator.cpp

@@ -18,9 +18,7 @@
 #define Q_NO_SYMLINKS
 #endif
 
-#if defined(Q_OS_WIN)
+#include "../../../../shared/filesystem.h"
-#  include "../../../network-settings.h"
-#endif
 
 #ifdef Q_OS_ANDROID
 #include <QStandardPaths>
@@ -563,11 +561,11 @@ void tst_QDirIterator::uncPaths_data()
 {
     QTest::addColumn<QString>("dirName");
     QTest::newRow("uncserver")
-            <<QString("//" + QtNetworkSettings::winServerName());
+            <<QString("//" + QTest::uncServerName());
     QTest::newRow("uncserver/testshare")
-            <<QString("//" + QtNetworkSettings::winServerName() + "/testshare");
+            <<QString("//" + QTest::uncServerName() + "/testshare");
     QTest::newRow("uncserver/testshare/tmp")
-            <<QString("//" + QtNetworkSettings::winServerName() + "/testshare/tmp");
+            <<QString("//" + QTest::uncServerName() + "/testshare/tmp");
 }
 void tst_QDirIterator::uncPaths()
 {

tests/auto/corelib/io/qfile/tst_qfile.cpp

@@ -74,9 +74,7 @@ QT_END_NAMESPACE
 #  undef fileno
 #endif
 
-#if defined(Q_OS_WIN)
+#include "../../../../shared/filesystem.h"
-#include "../../../network-settings.h"
-#endif
 
 #ifndef STDIN_FILENO
 #define STDIN_FILENO 0
@@ -542,7 +540,7 @@ void tst_QFile::exists()
     QVERIFY(!file.exists());
 
 #if defined(Q_OS_WIN)
-    const QString uncPath = "//" + QtNetworkSettings::winServerName() + "/testshare/readme.txt";
+    const QString uncPath = "//" + QTest::uncServerName() + "/testshare/readme.txt";
     QFile unc(uncPath);
     QVERIFY2(unc.exists(), msgFileDoesNotExist(uncPath).constData());
 #endif
@@ -608,7 +606,7 @@ void tst_QFile::open_data()
         QTest::newRow("//./PhysicalDrive0") << QString("//./PhysicalDrive0") << int(QIODevice::ReadOnly)
                                             << false << QFile::OpenError;
     }
-    QTest::newRow("uncFile") << "//" + QtNetworkSettings::winServerName() + "/testshare/test.pri" << int(QIODevice::ReadOnly)
+    QTest::newRow("uncFile") << "//" + QTest::uncServerName() + "/testshare/test.pri" << int(QIODevice::ReadOnly)
                              << true << QFile::NoError;
 #endif
 }
@@ -682,7 +680,7 @@ void tst_QFile::size_data()
     QTest::newRow( "exist01" ) << m_testFile << (qint64)245;
 #if defined(Q_OS_WIN)
     // Only test UNC on Windows./
-    QTest::newRow("unc") << "//" + QString(QtNetworkSettings::winServerName() + "/testshare/test.pri") << (qint64)34;
+    QTest::newRow("unc") << "//" + QString(QTest::uncServerName() + "/testshare/test.pri") << (qint64)34;
 #endif
 }
 
@@ -1769,7 +1767,7 @@ void tst_QFile::largeUncFileSupport()
     qint64 size = Q_INT64_C(8589934592);
     qint64 dataOffset = Q_INT64_C(8589914592);
     QByteArray knownData("LargeFile content at offset 8589914592");
-    QString largeFile("//" + QtNetworkSettings::winServerName() + "/testsharelargefile/file.bin");
+    QString largeFile("//" + QTest::uncServerName() + "/testsharelargefile/file.bin");
     const QByteArray largeFileEncoded = QFile::encodeName(largeFile);
 
     {
@@ -2450,7 +2448,7 @@ void tst_QFile::writeLargeDataBlock_data()
 #if defined(Q_OS_WIN) && !defined(QT_NO_NETWORK)
     // Some semi-randomness to avoid collisions.
     QTest::newRow("unc file")
-        << QString("//" + QtNetworkSettings::winServerName() + "/TESTSHAREWRITABLE/largefile-%1-%2.txt")
+        << QString("//" + QTest::uncServerName() + "/TESTSHAREWRITABLE/largefile-%1-%2.txt")
         .arg(QHostInfo::localHostName())
         .arg(QTime::currentTime().msec()) << (int)OpenQFile;
 #endif
@@ -2875,7 +2873,7 @@ void tst_QFile::miscWithUncPathAsCurrentDir()
 {
 #if defined(Q_OS_WIN)
     QString current = QDir::currentPath();
-    const QString path = QLatin1String("//") + QtNetworkSettings::winServerName()
+    const QString path = QLatin1String("//") + QTest::uncServerName()
         + QLatin1String("/testshare");
     QVERIFY2(QDir::setCurrent(path), qPrintable(QDir::toNativeSeparators(path)));
     QFile file("test.pri");

tests/auto/corelib/io/qfileinfo/tst_qfileinfo.cpp

@@ -31,9 +31,6 @@
 #endif
 #include <qplatformdefs.h>
 #include <qdebug.h>
-#if defined(Q_OS_WIN)
-#include "../../../network-settings.h"
-#endif
 #include <private/qfileinfo_p.h>
 #include "../../../../shared/filesystem.h"
 
@@ -383,7 +380,7 @@ void tst_QFileInfo::isDir_data()
     //QTest::newRow("drive 2") << "t:s" << false;
 #endif
 #if defined(Q_OS_WIN)
-    const QString uncRoot = QStringLiteral("//") + QtNetworkSettings::winServerName();
+    const QString uncRoot = QStringLiteral("//") + QTest::uncServerName();
     QTest::newRow("unc 1") << uncRoot << true;
     QTest::newRow("unc 2") << uncRoot + QLatin1Char('/') << true;
     QTest::newRow("unc 3") << uncRoot + "/testshare" << true;
@@ -426,7 +423,7 @@ void tst_QFileInfo::isRoot_data()
 #endif
 
 #if defined(Q_OS_WIN)
-    const QString uncRoot = QStringLiteral("//") + QtNetworkSettings::winServerName();
+    const QString uncRoot = QStringLiteral("//") + QTest::uncServerName();
     QTest::newRow("unc 1") << uncRoot << true;
     QTest::newRow("unc 2") << uncRoot + QLatin1Char('/') << true;
     QTest::newRow("unc 3") << uncRoot + "/testshare" << false;
@@ -470,7 +467,7 @@ void tst_QFileInfo::exists_data()
     QTest::newRow("simple dir with slash") << (m_resourcesDir + QLatin1Char('/')) << true;
 
 #if defined(Q_OS_WIN)
-    const QString uncRoot = QStringLiteral("//") + QtNetworkSettings::winServerName();
+    const QString uncRoot = QStringLiteral("//") + QTest::uncServerName();
     QTest::newRow("unc 1") << uncRoot << true;
     QTest::newRow("unc 2") << uncRoot + QLatin1Char('/') << true;
     QTest::newRow("unc 3") << uncRoot + "/testshare" << true;
@@ -1732,7 +1729,7 @@ void tst_QFileInfo::ntfsJunctionPointsAndSymlinks_data()
     {
         // Symlink to UNC share
         pwd.mkdir("unc");
-        QString uncTarget = QStringLiteral("//") + QtNetworkSettings::winServerName() + "/testshare";
+        QString uncTarget = QStringLiteral("//") + QTest::uncServerName() + "/testshare";
         QString uncSymlink = QDir::toNativeSeparators(pwd.absolutePath().append("\\unc\\link_to_unc"));
         QTest::newRow("UNC symlink")
             << NtfsTestResource(NtfsTestResource::SymLink, uncSymlink, uncTarget)

tests/auto/widgets/dialogs/qfiledialog2/tst_qfiledialog2.cpp

@@ -35,9 +35,7 @@
 #include <qpa/qplatformdialoghelper.h>
 #include <qpa/qplatformintegration.h>
 
-#if defined(Q_OS_WIN)
+#include "../../../../shared/filesystem.h"
-#include "../../../network-settings.h"
-#endif
 
 #if defined QT_BUILD_INTERNAL
 QT_BEGIN_NAMESPACE
@@ -256,7 +254,7 @@ void tst_QFileDialog2::unc()
 {
 #if defined(Q_OS_WIN)
     // Only test UNC on Windows./
-    QString dir("\\\\"  + QtNetworkSettings::winServerName() + "\\testsharewritable");
+    QString dir("\\\\"  + QTest::uncServerName() + "\\testsharewritable");
 #else
     QString dir(QDir::currentPath());
 #endif

tests/shared/filesystem.h

@@ -25,6 +25,9 @@
 #ifndef SYMBOLIC_LINK_FLAG_ALLOW_UNPRIVILEGED_CREATE // MinGW
 #define SYMBOLIC_LINK_FLAG_ALLOW_UNPRIVILEGED_CREATE (0x2)
 #endif
+namespace QTest {
+    static QString uncServerName() { return qgetenv("COMPUTERNAME"); }
+}
 #endif
 
 // QTemporaryDir-based helper class for creating file-system hierarchies and cleaning up.