qt 6.5.1 original

tests/benchmarks/corelib/json/CMakeLists.txt

@@ -0,0 +1,13 @@
+# Copyright (C) 2022 The Qt Company Ltd.
+# SPDX-License-Identifier: BSD-3-Clause
+
+#####################################################################
+## tst_bench_qtjson Binary:
+#####################################################################
+
+qt_internal_add_benchmark(tst_bench_qtjson
+    SOURCES
+        tst_bench_qtjson.cpp
+    LIBRARIES
+        Qt::Test
+)

tests/benchmarks/corelib/json/numbers.json

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+[
+    {
+        "integer": 1234567890,
+        "real": -9876.543210,
+        "e": 0.123456789e-12,
+        "E": 1.234567890E+34,
+        "":  23456789012E66,
+        "zero": 0,
+        "one": 1
+     },
+     [
+        -1234567890,
+        -1234567890,
+        -1234567890,
+        1234567890,
+        1234567890,
+        1234567890
+     ]
+]

tests/benchmarks/corelib/json/tst_bench_qtjson.cpp

@@ -0,0 +1,122 @@
+// Copyright (C) 2016 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
+
+#include <QTest>
+#include <QVariantMap>
+#include <qjsondocument.h>
+#include <qjsonobject.h>
+
+class BenchmarkQtJson: public QObject
+{
+    Q_OBJECT
+public:
+    BenchmarkQtJson(QObject *parent = nullptr);
+
+private Q_SLOTS:
+    void initTestCase();
+    void cleanupTestCase();
+    void init();
+    void cleanup();
+
+    void parseNumbers();
+    void parseJson();
+    void parseJsonToVariant();
+
+    void jsonObjectInsert();
+    void variantMapInsert();
+};
+
+BenchmarkQtJson::BenchmarkQtJson(QObject *parent) : QObject(parent)
+{
+
+}
+
+void BenchmarkQtJson::initTestCase()
+{
+
+}
+
+void BenchmarkQtJson::cleanupTestCase()
+{
+
+}
+
+void BenchmarkQtJson::init()
+{
+
+}
+
+void BenchmarkQtJson::cleanup()
+{
+
+}
+
+void BenchmarkQtJson::parseNumbers()
+{
+    QString testFile = QFINDTESTDATA("numbers.json");
+    QVERIFY2(!testFile.isEmpty(), "cannot find test file numbers.json!");
+    QFile file(testFile);
+    file.open(QFile::ReadOnly);
+    QByteArray testJson = file.readAll();
+
+    QBENCHMARK {
+        QJsonDocument doc = QJsonDocument::fromJson(testJson);
+        QJsonObject object = doc.object();
+    }
+}
+
+void BenchmarkQtJson::parseJson()
+{
+    QString testFile = QFINDTESTDATA("test.json");
+    QVERIFY2(!testFile.isEmpty(), "cannot find test file test.json!");
+    QFile file(testFile);
+    file.open(QFile::ReadOnly);
+    QByteArray testJson = file.readAll();
+
+    QBENCHMARK {
+        QJsonDocument doc = QJsonDocument::fromJson(testJson);
+        QJsonObject object = doc.object();
+    }
+}
+
+void BenchmarkQtJson::parseJsonToVariant()
+{
+    QString testFile = QFINDTESTDATA("test.json");
+    QVERIFY2(!testFile.isEmpty(), "cannot find test file test.json!");
+    QFile file(testFile);
+    file.open(QFile::ReadOnly);
+    QByteArray testJson = file.readAll();
+
+    QBENCHMARK {
+        QJsonDocument doc = QJsonDocument::fromJson(testJson);
+        QVariant v = doc.toVariant();
+    }
+}
+
+void BenchmarkQtJson::jsonObjectInsert()
+{
+    QJsonObject object;
+    QString test(QStringLiteral("testString"));
+    QJsonValue value(1.5);
+
+    QBENCHMARK {
+        for (int i = 0; i < 1000; i++)
+            object.insert("testkey_" + QString::number(i), value);
+    }
+}
+
+void BenchmarkQtJson::variantMapInsert()
+{
+    QVariantMap object;
+    QString test(QStringLiteral("testString"));
+    QVariant variantValue(1.5);
+
+    QBENCHMARK {
+        for (int i = 0; i < 1000; i++)
+            object.insert("testkey_" + QString::number(i), variantValue);
+    }
+}
+
+QTEST_MAIN(BenchmarkQtJson)
+#include "tst_bench_qtjson.moc"
+