QFuture based asynchronous Task implementation.

Change-Id: I538a2fc40b67d6d27f120afe3705065ab98f8f99
Reviewed-by: Tim Jenssen <tim.jenssen@digia.com>

3 files changed, 152 insertions, 1 deletions

diff --git a/tests/auto/installer/installer.pro b/tests/auto/installer/installer.pro
index f4c4bbaf4..c565561b4 100644
--- a/tests/auto/installer/installer.pro
+++ b/tests/auto/installer/installer.pro
@@ -15,4 +15,5 @@ SUBDIRS += \
     solver \
     binaryformat \
     packagemanagercore \
-    settingsoperation
+    settingsoperation \
+    task
diff --git a/tests/auto/installer/task/task.pro b/tests/auto/installer/task/task.pro
new file mode 100644
index 000000000..52d12db46
--- /dev/null
+++ b/tests/auto/installer/task/task.pro
@@ -0,0 +1,7 @@
+include(../../qttest.pri)
+
+QT -= gui
+isEqual(QT_MAJOR_VERSION, 5) {
+  QT += concurrent network
+}
+SOURCES += tst_task.cpp
diff --git a/tests/auto/installer/task/tst_task.cpp b/tests/auto/installer/task/tst_task.cpp
new file mode 100644
index 000000000..945c2a5f6
--- /dev/null
+++ b/tests/auto/installer/task/tst_task.cpp
@@ -0,0 +1,143 @@
+/**************************************************************************
+**
+** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies).
+** Contact: http://www.qt-project.org/legal
+**
+** This file is part of the Qt Installer Framework.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and Digia.  For licensing terms and
+** conditions see http://qt.digia.com/licensing.  For further information
+** use the contact form at http://qt.digia.com/contact-us.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Digia gives you certain additional
+** rights.  These rights are described in the Digia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+**
+** $QT_END_LICENSE$
+**
+**************************************************************************/
+
+#include <copyfiletask.h>
+#include <downloadfiletask.h>
+#include <fileutils.h>
+
+#include <QFutureWatcher>
+#include <QSignalSpy>
+#include <QTest>
+#include <QTemporaryFile>
+
+using namespace QInstaller;
+
+static const qint64 scLargeSize = 4194304LL;
+
+class tst_Task : public QObject
+{
+    Q_OBJECT
+
+private slots:
+    void copyFile()
+    {
+        QTemporaryFile file;
+        file.setAutoRemove(false);
+
+        if (file.open()) {
+            const QString filename = file.fileName();
+            QInstaller::blockingWrite(&file, QByteArray(scLargeSize, '1'));
+            file.close();
+
+            CopyFileTask fileTask(filename);
+            QFutureWatcher<FileTaskResult> watcher;
+
+            QSignalSpy started(&watcher, SIGNAL(started()));
+            QSignalSpy finished(&watcher, SIGNAL(finished()));
+            QSignalSpy progress(&watcher, SIGNAL(progressValueChanged(int)));
+
+            watcher.setFuture(QtConcurrent::run(&CopyFileTask::doTask, &fileTask));
+            QTest::qWait(10); // Spin the event loop to deliver queued signals.
+
+            QCOMPARE(started.count(), 1);
+            QCOMPARE(finished.count(), 0);
+            QCOMPARE(progress.count(), 1);
+
+            watcher.waitForFinished();
+            QTest::qWait(10); // Spin the event loop to deliver queued signals.
+
+            QCOMPARE(started.count(), 1);
+            QCOMPARE(finished.count(), 1);
+            QVERIFY(progress.count() > 2);
+
+            FileTaskResult result = watcher.result();
+            QCOMPARE(watcher.future().resultCount(), 1);
+
+            QVERIFY(QFile(result.target()).exists());
+            QCOMPARE(file.size(), QFile(result.target()).size());
+            QCOMPARE(result.checkSum().toHex(), QByteArray("85304f87b8d90554a63c6f6d1e9cc974fbef8d32"));
+        }
+    }
+
+    void downloadFile()
+    {
+        QTemporaryFile file;
+        file.setAutoRemove(false);
+
+        if (file.open()) {
+            const QString filename = file.fileName();
+            QInstaller::blockingWrite(&file, QByteArray(scLargeSize, '1'));
+            file.close();
+
+            DownloadFileTask fileTask(QLatin1String("file:///") + filename);
+            QFutureWatcher<FileTaskResult> watcher;
+
+            QSignalSpy started(&watcher, SIGNAL(started()));
+            QSignalSpy finished(&watcher, SIGNAL(finished()));
+            QSignalSpy progress(&watcher, SIGNAL(progressValueChanged(int)));
+
+            watcher.setFuture(QtConcurrent::run(&DownloadFileTask::doTask, &fileTask));
+            QTest::qWait(10); // Spin the event loop to deliver queued signals.
+
+            QCOMPARE(started.count(), 1);
+            QCOMPARE(finished.count(), 0);
+            QCOMPARE(progress.count(), 1);
+
+            watcher.waitForFinished();
+            QTest::qWait(10); // Spin the event loop to deliver queued signals.
+
+            QCOMPARE(started.count(), 1);
+            QCOMPARE(finished.count(), 1);
+            QVERIFY(progress.count() > 2);
+
+            FileTaskResult result = watcher.result();
+            QCOMPARE(watcher.future().resultCount(), 1);
+
+            QVERIFY(QFile(result.target()).exists());
+            QCOMPARE(file.size(), QFile(result.target()).size());
+            QCOMPARE(result.checkSum().toHex(), QByteArray("85304f87b8d90554a63c6f6d1e9cc974fbef8d32"));
+        }
+    }
+};
+
+QTEST_MAIN(tst_Task)
+
+#include "tst_task.moc"