Fix toDisplayString(QUrl::PreferLocalFile) on Win

When using QUrl::PreferLocalFile we do want to strip the leading slash,
as toLocalFile() would do as well.

Behavior change by means of an example:
  QUrl url(QUrl::fromLocalFile("C:/file.txt")
  url.toLocalFile() --> "C:/file.txt"

Before:
  url.toDisplayString(QUrl::PreferLocalFile) --> "/C:/file.txt"

After:
  url.toDisplayString(QUrl::PreferLocalFile) --> "C:/file.txt"

Task-number: QTBUG-41729
Change-Id: I7d425541f6077ebcf3fcf46feeb7e0f03a0d7fe2
Reviewed-by: Dominik Haumann <dhaumann@kde.org>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>

1 files changed, 25 insertions, 0 deletions

diff --git a/tests/auto/corelib/io/qurl/tst_qurl.cpp b/tests/auto/corelib/io/qurl/tst_qurl.cpp
index 031a35b380..519b05f492 100644
--- a/tests/auto/corelib/io/qurl/tst_qurl.cpp
+++ b/tests/auto/corelib/io/qurl/tst_qurl.cpp
@@ -69,6 +69,8 @@ private slots:
     void resolving();
     void toString_data();
     void toString();
+    void toString_PreferLocalFile_data();
+    void toString_PreferLocalFile();
     void toString_constructed_data();
     void toString_constructed();
     void toAndFromStringList_data();
@@ -1050,6 +1052,29 @@ void tst_QUrl::toString()
 
     QCOMPARE(url.adjusted(opt).toString(), string);
 }
+void tst_QUrl::toString_PreferLocalFile_data()
+{
+    QTest::addColumn<QUrl>("url");
+    QTest::addColumn<QString>("string");
+
+#ifdef Q_OS_WIN
+    QTest::newRow("win-drive") << QUrl(QString::fromLatin1("file:///c:/windows/regedit.exe"))
+                               << QString::fromLatin1("c:/windows/regedit.exe");
+    QTest::newRow("win-share") << QUrl(QString::fromLatin1("//Anarki/homes"))
+                               << QString::fromLatin1("//anarki/homes");
+#else
+    QTest::newRow("unix-path") << QUrl(QString::fromLatin1("file:///tmp"))
+                               << QString::fromLatin1("/tmp");
+#endif
+}
+
+void tst_QUrl::toString_PreferLocalFile()
+{
+    QFETCH(QUrl, url);
+    QFETCH(QString, string);
+
+    QCOMPARE(url.toString(QUrl::PreferLocalFile), string);
+}
 
 void tst_QUrl::toAndFromStringList_data()
 {