Android: fix Android filedialog and completer tests

* https://developer.android.com/training/data-storage/use-cases#opt-out-
in-production-app

Pick-to: 6.4 6.3 6.2
Task-number: QTQAINFRA-4748
Change-Id: If6abb48b730b9b33807f5f6648e1360defc090a6
Reviewed-by: Ivan Solovev <ivan.solovev@qt.io>

3 files changed, 42 insertions, 2 deletions

diff --git a/tests/auto/widgets/dialogs/qfiledialog/tst_qfiledialog.cpp b/tests/auto/widgets/dialogs/qfiledialog/tst_qfiledialog.cpp
index f236779eb5..e0d091c3bd 100644
--- a/tests/auto/widgets/dialogs/qfiledialog/tst_qfiledialog.cpp
+++ b/tests/auto/widgets/dialogs/qfiledialog/tst_qfiledialog.cpp
@@ -418,7 +418,18 @@ void tst_QFiledialog::completer_data()
     QTest::newRow("goto root")     << QString()        << rootPath << -1;
     QTest::newRow("start at root") << rootPath << QString()        << -1;
 
-    QFileInfoList list = QDir::root().entryInfoList(QDir::Dirs | QDir::NoDotAndDotDot);
+    QDir dir = QDir::root();
+#ifdef Q_OS_ANDROID
+    // Android 11 and above doesn't allow accessing root filesystem as before,
+    // so let's opt int for the app's home.
+    if (QNativeInterface::QAndroidApplication::sdkVersion() >= 30) {
+        const auto homePaths = QStandardPaths::standardLocations(QStandardPaths::HomeLocation);
+        QVERIFY(!homePaths.isEmpty());
+        dir = QDir(homePaths.first());
+    }
+#endif
+
+    QFileInfoList list = dir.entryInfoList(QDir::Dirs | QDir::NoDotAndDotDot);
     QVERIFY(!list.isEmpty());
     const QString folder = list.first().absoluteFilePath();
     QTest::newRow("start at one below root r") << folder << "r" << -1;
diff --git a/tests/auto/widgets/dialogs/qfiledialog2/tst_qfiledialog2.cpp b/tests/auto/widgets/dialogs/qfiledialog2/tst_qfiledialog2.cpp
index f8dc03ac22..4ef1a0e36e 100644
--- a/tests/auto/widgets/dialogs/qfiledialog2/tst_qfiledialog2.cpp
+++ b/tests/auto/widgets/dialogs/qfiledialog2/tst_qfiledialog2.cpp
@@ -669,6 +669,17 @@ void tst_QFileDialog2::completionOnLevelAfterRoot()
     }
     if (testDir.isEmpty())
         QSKIP("This test requires to have a unique directory of at least six ascii characters under c:/");
+#elif defined(Q_OS_ANDROID)
+    // Android 11 and above doesn't allow accessing root filesystem as before,
+    // so let's opt int for the app's home.
+    const auto homePaths = QStandardPaths::standardLocations(QStandardPaths::HomeLocation);
+    QVERIFY(!homePaths.isEmpty());
+    fd.setFilter(QDir::Hidden | QDir::AllDirs | QDir::Files | QDir::System);
+    fd.setDirectory(homePaths.first());
+    QDir(homePaths.first()).mkdir("etc");
+    auto cleanup = qScopeGuard([&]() {
+        QDir(homePaths.first()).rmdir("etc");
+    });
 #else
     fd.setFilter(QDir::Hidden | QDir::AllDirs | QDir::Files | QDir::System);
     fd.setDirectory("/");
diff --git a/tests/auto/widgets/util/qcompleter/tst_qcompleter.cpp b/tests/auto/widgets/util/qcompleter/tst_qcompleter.cpp
index 76b12d7aea..92158190b8 100644
--- a/tests/auto/widgets/util/qcompleter/tst_qcompleter.cpp
+++ b/tests/auto/widgets/util/qcompleter/tst_qcompleter.cpp
@@ -151,6 +151,16 @@ tst_QCompleter::~tst_QCompleter()
     delete completer;
 }
 
+#ifdef Q_OS_ANDROID
+static QString androidHomePath()
+{
+    const auto homePaths = QStandardPaths::standardLocations(QStandardPaths::HomeLocation);
+    QDir dir = homePaths.isEmpty() ? QDir() : homePaths.first();
+    dir.cdUp();
+    return dir.path();
+}
+#endif
+
 void tst_QCompleter::setSourceModel(ModelType type)
 {
     QTreeWidgetItem *parent, *child;
@@ -203,7 +213,13 @@ void tst_QCompleter::setSourceModel(ModelType type)
         completer->setCsvCompletion(false);
         {
             auto m = new QFileSystemModel(completer);
+#ifdef Q_OS_ANDROID
+            // Android 11 and above doesn't allow accessing root filesystem as before,
+            // so let's opt int for the app's home.
+            m->setRootPath(androidHomePath());
+#else
             m->setRootPath("/");
+#endif
             completer->setModel(m);
         }
         completer->setCompletionColumn(0);
@@ -590,7 +606,9 @@ void tst_QCompleter::fileSystemModel_data()
 //        QTest::newRow("(/d)") << "/d" << "" << "Developer" << "/Developer";
 #elif defined(Q_OS_ANDROID)
         QTest::newRow("()") << "" << "" << "/" << "/";
-        QTest::newRow("(/et)") << "/et" << "" << "etc" << "/etc";
+        const QString androidDir = androidHomePath();
+        const QString tag = QStringLiteral("%1/fil").arg(androidDir);
+        QTest::newRow(tag.toUtf8().data()) << tag << "" << "files" << androidDir + "/files";
 #else
         QTest::newRow("()") << "" << "" << "/" << "/";
 #if !defined(Q_OS_AIX) && !defined(Q_OS_HPUX) && !defined(Q_OS_QNX)