Add auto tests for Utils::runAsync

Change-Id: I59494d410ec529fd9689c64fea299ada6f6a472b
Reviewed-by: Orgad Shaneh <orgads@gmail.com>

tests/auto/auto.pro

@@ -16,6 +16,7 @@ SUBDIRS += \
     json \
     utils \
     filesearch \
+    runextensions \
     sdktool \
     valgrind
 

tests/auto/auto.qbs

@@ -18,6 +18,7 @@ Project {
         "profilewriter/profilewriter.qbs",
         "qml/qml.qbs",
         "qtcprocess/qtcprocess.qbs",
+        "runextensions/runextensions.qbs",
         "sdktool/sdktool.qbs",
         "timeline/timeline.qbs",
         "treeviewfind/treeviewfind.qbs",

tests/auto/runextensions/runextensions.pro

@@ -0,0 +1,5 @@
+include(../qttest.pri)
+
+# Input
+SOURCES += tst_runextensions.cpp
+HEADERS += $$IDE_SOURCE_TREE/src/libs/utils/runextensions.h

tests/auto/runextensions/runextensions.qbs

@@ -0,0 +1,8 @@
+import qbs
+
+QtcAutotest {
+    name: "Run extensions autotest"
+    files: [
+        "tst_runextensions.cpp",
+    ]
+}

tests/auto/runextensions/tst_runextensions.cpp

@@ -0,0 +1,127 @@
+/****************************************************************************
+**
+** Copyright (C) 2015 The Qt Company Ltd.
+** Contact: http://www.qt.io/licensing
+**
+** This file is part of Qt Creator.
+**
+** 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 The Qt Company.  For licensing terms and
+** conditions see http://www.qt.io/terms-conditions.  For further information
+** use the contact form at http://www.qt.io/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 or version 3 as published by the Free
+** Software Foundation and appearing in the file LICENSE.LGPLv21 and
+** LICENSE.LGPLv3 included in the packaging of this file.  Please review the
+** following information to ensure the GNU Lesser General Public License
+** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
+** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, The Qt Company gives you certain additional
+** rights.  These rights are described in The Qt Company LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+****************************************************************************/
+
+#include <utils/runextensions.h>
+
+#include <QtTest>
+
+class tst_RunExtensions : public QObject
+{
+    Q_OBJECT
+
+private slots:
+    void runAsync();
+};
+
+void report3(QFutureInterface<int> &fi)
+{
+    fi.reportResults({0, 2, 1});
+}
+
+void reportN(QFutureInterface<double> &fi, int n)
+{
+    fi.reportResults(QVector<double>(n, 0));
+}
+
+void reportString1(QFutureInterface<QString> &fi, const QString &s)
+{
+    fi.reportResult(s);
+}
+
+void reportString2(QFutureInterface<QString> &fi, QString s)
+{
+    fi.reportResult(s);
+}
+
+class Callable {
+public:
+    void operator()(QFutureInterface<double> &fi, int n) const
+    {
+        fi.reportResults(QVector<double>(n, 0));
+    }
+};
+
+void tst_RunExtensions::runAsync()
+{
+    // free function pointer
+    QCOMPARE(Utils::runAsync<int>(&report3).results(),
+             QList<int>({0, 2, 1}));
+
+    QCOMPARE(Utils::runAsync<double>(&reportN, 4).results(),
+             QList<double>({0, 0, 0, 0}));
+    QCOMPARE(Utils::runAsync<double>(&reportN, 2).results(),
+             QList<double>({0, 0}));
+
+    QString s = QLatin1String("string");
+    const QString &crs = QLatin1String("cr string");
+    const QString cs = QLatin1String("c string");
+
+    QCOMPARE(Utils::runAsync<QString>(&reportString1, std::cref(s)).results(),
+             QList<QString>({s}));
+    QCOMPARE(Utils::runAsync<QString>(&reportString1, crs).results(),
+             QList<QString>({crs}));
+    QCOMPARE(Utils::runAsync<QString>(&reportString1, cs).results(),
+             QList<QString>({cs}));
+    QCOMPARE(Utils::runAsync<QString>(&reportString1, QString(QLatin1String("rvalue"))).results(),
+             QList<QString>({QString(QLatin1String("rvalue"))}));
+
+    QCOMPARE(Utils::runAsync<QString>(&reportString2, std::cref(s)).results(),
+             QList<QString>({s}));
+    QCOMPARE(Utils::runAsync<QString>(&reportString2, crs).results(),
+             QList<QString>({crs}));
+    QCOMPARE(Utils::runAsync<QString>(&reportString2, cs).results(),
+             QList<QString>({cs}));
+    QCOMPARE(Utils::runAsync<QString>(&reportString2, QString(QLatin1String("rvalue"))).results(),
+             QList<QString>({QString(QLatin1String("rvalue"))}));
+
+    // lambda
+    QCOMPARE(Utils::runAsync<double>([](QFutureInterface<double> &fi, int n) {
+                 fi.reportResults(QVector<double>(n, 0));
+             }, 3).results(),
+             QList<double>({0, 0, 0}));
+
+    // std::function
+    const std::function<void(QFutureInterface<double>&,int)> fun = [](QFutureInterface<double> &fi, int n) {
+        fi.reportResults(QVector<double>(n, 0));
+    };
+    QCOMPARE(Utils::runAsync<double>(fun, 2).results(),
+             QList<double>({0, 0}));
+
+    // operator()
+    QCOMPARE(Utils::runAsync<double>(Callable(), 3).results(),
+             QList<double>({0, 0, 0}));
+    const Callable c{};
+    QCOMPARE(Utils::runAsync<double>(c, 2).results(),
+             QList<double>({0, 0}));
+}
+
+QTEST_MAIN(tst_RunExtensions)
+
+#include "tst_runextensions.moc"