qt 6.5.1 original

tests/benchmarks/testlib/tostring/CMakeLists.txt

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+# Copyright (C) 2022 The Qt Company Ltd.
+# SPDX-License-Identifier: BSD-3-Clause
+
+#####################################################################
+## tst_bench_tostring Binary:
+#####################################################################
+
+qt_internal_add_benchmark(tst_bench_tostring
+    SOURCES
+        tst_tostring.cpp
+    LIBRARIES
+        Qt::Test
+)

tests/benchmarks/testlib/tostring/tst_tostring.cpp

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+// Copyright (C) 2019 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
+
+#include <QTest>
+#include <QtCore/qmath.h> // pi, e
+
+// Tests for QTest::toString
+class tst_toString : public QObject
+{
+    Q_OBJECT
+
+    template <typename T> void numeric_data();
+    template <typename T> void numeric();
+
+private slots:
+    void floatTst_data() { numeric_data<float>(); }
+    void floatTst() { numeric<float>(); }
+    void doubleTst_data() { numeric_data<double>(); }
+    void doubleTst() { numeric<double>(); }
+    void intTst_data() { numeric_data<int>(); }
+    void intTst() { numeric<int>(); }
+    void unsignedTst_data() { numeric_data<unsigned>(); }
+    void unsignedTst() { numeric<unsigned>(); }
+    void quint64Tst_data() { numeric_data<quint64>(); }
+    void quint64Tst() { numeric<quint64>(); }
+    void qint64Tst_data() { numeric_data<qint64>(); }
+    void qint64Tst() { numeric<qint64>(); }
+
+private:
+    template <typename T> void compare();
+    template <typename T> void compare_eq();
+
+private slots:
+    void floatCompare_data() { numeric_data<float>(); }
+    void floatCompare() { compare<float>(); }
+    void floatCompareEq_data() { numeric_data<float>(); }
+    void floatCompareEq() { compare_eq<float>(); }
+    void doubleCompare_data() { numeric_data<double>(); }
+    void doubleCompare() { compare<double>(); }
+    void doubleCompareEq_data() { numeric_data<double>(); }
+    void doubleCompareEq() { compare_eq<double>(); }
+    void intCompare_data() { numeric_data<int>(); }
+    void intCompare() { compare<int>(); }
+    void intCompareEq_data() { numeric_data<int>(); }
+    void intCompareEq() { compare_eq<int>(); }
+    void unsignedCompare_data() { numeric_data<unsigned>(); }
+    void unsignedCompare() { compare<unsigned>(); }
+    void unsignedCompareEq_data() { numeric_data<unsigned>(); }
+    void unsignedCompareEq() { compare_eq<unsigned>(); }
+    void quint64Compare_data() { numeric_data<quint64>(); }
+    void quint64Compare() { compare<quint64>(); }
+    void quint64CompareEq_data() { numeric_data<quint64>(); }
+    void quint64CompareEq() { compare_eq<quint64>(); }
+    void qint64Compare_data() { numeric_data<qint64>(); }
+    void qint64Compare() { compare<qint64>(); }
+    void qint64CompareEq_data() { numeric_data<qint64>(); }
+    void qint64CompareEq() { compare_eq<qint64>(); }
+};
+
+template <typename T>
+void tst_toString::numeric_data()
+{
+    QTest::addColumn<T>("datum");
+    const bool floaty = std::is_floating_point<T>::value;
+
+    QTest::newRow("zero") << T(0);
+    QTest::newRow("one") << T(1);
+    if (floaty) {
+        QTest::newRow("pi") << T(M_PI);
+        QTest::newRow("e") << T(M_E);
+
+        // Stress canonicalisation of leading zeros on exponents:
+        QTest::newRow("milli") << T(1e-3);
+        QTest::newRow("micro") << T(1e-6);
+        QTest::newRow("mu0") << T(.4e-6 * M_PI); // Henry/metre
+        QTest::newRow("Planck") << T(662.606876e-36); // Joule.second/turn
+    }
+    QTest::newRow("2e9") << T(2000000000);
+    QTest::newRow("c.s/m") << T(299792458);
+    QTest::newRow("Avogadro") << T(6.022045e+23); // things/mol (.996 << 79, so ints overflow to max)
+
+    QTest::newRow("lowest") << std::numeric_limits<T>::lowest();
+    QTest::newRow("max") << std::numeric_limits<T>::max();
+    if (floaty) {
+        QTest::newRow("min") << std::numeric_limits<T>::min();
+
+        if (std::numeric_limits<T>::has_infinity) {
+            const T uge = std::numeric_limits<T>::infinity();
+            QTest::newRow("inf") << uge;
+            QTest::newRow("-inf") << -uge;
+        }
+        if (std::numeric_limits<T>::has_quiet_NaN)
+            QTest::newRow("nan") << std::numeric_limits<T>::quiet_NaN();
+    }
+}
+
+template <typename T>
+void tst_toString::numeric()
+{
+    QFETCH(T, datum);
+
+    QBENCHMARK {
+        auto tst = QTest::toString(datum);
+        delete [] tst;
+    }
+}
+
+template <typename T>
+void tst_toString::compare()
+{
+    QFETCH(T, datum);
+
+    QBENCHMARK {
+        QCOMPARE(datum, datum);
+    }
+}
+
+template <typename T>
+void tst_toString::compare_eq()
+{
+    QFETCH(T, datum);
+
+    if constexpr (std::numeric_limits<T>::has_quiet_NaN) {
+        if (qIsNaN(datum))
+            QSKIP("Unlike QCOMPARE, QCOMPARE_EQ doesn't handle NaN specially");
+    }
+
+    QBENCHMARK {
+        QCOMPARE_EQ(datum, datum);
+    }
+}
+
+QTEST_MAIN(tst_toString)
+#include "tst_tostring.moc"