1 files changed, 321 insertions, 0 deletions
diff --git a/tests/benchmarks/corelib/thread/qfuture/tst_bench_qfuture.cpp b/tests/benchmarks/corelib/thread/qfuture/tst_bench_qfuture.cpp
new file mode 100644
index 0000000000..17c2f20712
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+++ b/tests/benchmarks/corelib/thread/qfuture/tst_bench_qfuture.cpp
@@ -0,0 +1,321 @@
+/****************************************************************************
+**
+** Copyright (C) 2021 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the test suite of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:GPL-EXCEPT$
+** 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 https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3 as published by the Free Software
+** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-3.0.html.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <QTest>
+
+#include <qexception.h>
+#include <qfuture.h>
+#include <qsemaphore.h>
+
+class tst_QFuture : public QObject
+{
+    Q_OBJECT
+
+private slots:
+    void makeReadyfuture();
+#ifndef QT_NO_EXCEPTIONS
+    void makeExceptionalFuture();
+#endif
+    void result();
+    void results();
+    void takeResult();
+    void reportResult();
+    void reportResults();
+    void reportResultsManualProgress();
+#ifndef QT_NO_EXCEPTIONS
+    void reportException();
+#endif
+    void then();
+    void thenVoid();
+    void onCanceled();
+    void onCanceledVoid();
+#ifndef QT_NO_EXCEPTIONS
+    void onFailed();
+    void onFailedVoid();
+    void thenOnFailed();
+    void thenOnFailedVoid();
+#endif
+    void reportProgress();
+    void progressMinimum();
+    void progressMaximum();
+    void progressValue();
+    void progressText();
+};
+
+void tst_QFuture::makeReadyfuture()
+{
+    QBENCHMARK {
+        auto future = QtFuture::makeReadyFuture(42);
+        Q_UNUSED(future);
+    }
+}
+
+#ifndef QT_NO_EXCEPTIONS
+void tst_QFuture::makeExceptionalFuture()
+{
+    QException e;
+    QBENCHMARK {
+        auto future = QtFuture::makeExceptionalFuture(e);
+        Q_UNUSED(future);
+    }
+}
+#endif
+
+void tst_QFuture::result()
+{
+    auto future = QtFuture::makeReadyFuture(42);
+
+    QBENCHMARK {
+        auto value = future.result();
+        Q_UNUSED(value);
+    }
+}
+
+void tst_QFuture::results()
+{
+    QFutureInterface<int> fi;
+    fi.reportStarted();
+
+    for (int i = 0; i < 1000; ++i)
+        fi.reportResult(i);
+
+    fi.reportFinished();
+
+    auto future = fi.future();
+    QBENCHMARK {
+        auto values = future.results();
+        Q_UNUSED(values);
+    }
+}
+
+void tst_QFuture::takeResult()
+{
+    QBENCHMARK {
+        auto future = QtFuture::makeReadyFuture(42);
+        auto value = future.takeResult();
+        Q_UNUSED(value);
+    }
+}
+
+void tst_QFuture::reportResult()
+{
+    QFutureInterface<int> fi;
+    QBENCHMARK {
+        fi.reportResult(42);
+    }
+}
+
+void tst_QFuture::reportResults()
+{
+    QFutureInterface<int> fi;
+    QList<int> values(1000);
+    std::iota(values.begin(), values.end(), 0);
+    QBENCHMARK {
+        fi.reportResults(values);
+    }
+}
+
+void tst_QFuture::reportResultsManualProgress()
+{
+    QFutureInterface<int> fi;
+    const int resultCount = 1000;
+    fi.setProgressRange(0, resultCount);
+    QBENCHMARK {
+        for (int i = 0; i < resultCount; ++i)
+            fi.reportResult(i);
+    }
+}
+
+#ifndef QT_NO_EXCEPTIONS
+void tst_QFuture::reportException()
+{
+    QException e;
+    QBENCHMARK {
+        QFutureInterface<int> fi;
+        fi.reportException(e);
+    }
+}
+#endif
+
+void tst_QFuture::then()
+{
+    auto f = QtFuture::makeReadyFuture(42);
+    QBENCHMARK {
+        auto future = f.then([](int value) { return value; });
+        Q_UNUSED(future);
+    }
+}
+
+void tst_QFuture::thenVoid()
+{
+    auto f = QtFuture::makeReadyFuture();
+    QBENCHMARK {
+        auto future = f.then([] {});
+        Q_UNUSED(future);
+    }
+}
+
+void tst_QFuture::onCanceled()
+{
+    QFutureInterface<int> fi;
+    fi.reportStarted();
+    fi.reportCanceled();
+    fi.reportFinished();
+
+    QBENCHMARK {
+        auto future = fi.future().onCanceled([] { return 0; });
+        Q_UNUSED(future);
+    }
+}
+
+void tst_QFuture::onCanceledVoid()
+{
+    QFutureInterface<void> fi;
+    fi.reportStarted();
+    fi.reportCanceled();
+    fi.reportFinished();
+
+    QBENCHMARK {
+        auto future = fi.future().onCanceled([] {});
+        Q_UNUSED(future);
+    }
+}
+
+#ifndef QT_NO_EXCEPTIONS
+void tst_QFuture::onFailed()
+{
+    QException e;
+    auto f = QtFuture::makeExceptionalFuture<int>(e);
+    QBENCHMARK {
+        auto future = f.onFailed([] { return 0; });
+        Q_UNUSED(future);
+    }
+}
+
+void tst_QFuture::onFailedVoid()
+{
+    QException e;
+    auto f = QtFuture::makeExceptionalFuture(e);
+    QBENCHMARK {
+        auto future = f.onFailed([] {});
+        Q_UNUSED(future);
+    }
+}
+
+void tst_QFuture::thenOnFailed()
+{
+    auto f = QtFuture::makeReadyFuture(42);
+    QBENCHMARK {
+        auto future =
+                f.then([](int) { throw std::runtime_error("error"); }).onFailed([] { return 0; });
+        Q_UNUSED(future);
+    }
+}
+
+void tst_QFuture::thenOnFailedVoid()
+{
+    auto f = QtFuture::makeReadyFuture();
+    QBENCHMARK {
+        auto future = f.then([] { throw std::runtime_error("error"); }).onFailed([] {});
+        Q_UNUSED(future);
+    }
+}
+
+#endif
+
+void tst_QFuture::reportProgress()
+{
+    QFutureInterface<void> fi;
+    fi.reportStarted();
+    fi.reportFinished();
+    QBENCHMARK {
+        for (int i = 0; i < 100; ++i) {
+            fi.setProgressValue(i);
+        }
+    }
+}
+
+void tst_QFuture::progressMinimum()
+{
+    QFutureInterface<void> fi;
+    fi.setProgressRange(0, 100);
+    fi.reportStarted();
+    fi.reportFinished();
+    auto future = fi.future();
+
+    QBENCHMARK {
+        auto value = future.progressMinimum();
+        Q_UNUSED(value);
+    }
+}
+
+void tst_QFuture::progressMaximum()
+{
+    QFutureInterface<void> fi;
+    fi.setProgressRange(0, 100);
+    fi.reportStarted();
+    fi.reportFinished();
+    auto future = fi.future();
+
+    QBENCHMARK {
+        auto value = future.progressMaximum();
+        Q_UNUSED(value);
+    }
+}
+
+void tst_QFuture::progressValue()
+{
+    QFutureInterface<void> fi;
+    fi.setProgressValue(50);
+    fi.reportStarted();
+    fi.reportFinished();
+    auto future = fi.future();
+
+    QBENCHMARK {
+        auto value = future.progressValue();
+        Q_UNUSED(value);
+    }
+}
+
+void tst_QFuture::progressText()
+{
+    QFutureInterface<void> fi;
+    fi.setProgressValueAndText(50, "text");
+    fi.reportStarted();
+    fi.reportFinished();
+    auto future = fi.future();
+
+    QBENCHMARK {
+        auto text = future.progressText();
+        Q_UNUSED(text);
+    }
+}
+
+QTEST_MAIN(tst_QFuture)
+
+#include "tst_bench_qfuture.moc"