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50
51#include <QtWidgets>
52#include <qtest.h>
53
54class TestBenchmark : public QObject
55{
56 Q_OBJECT
57private slots:
58 void simple();
59 void multiple_data();
60 void multiple();
61 void series_data();
62 void series();
63};
64
65//! [0]
66void TestBenchmark::simple()
67{
68 QString str1 = QLatin1String("This is a test string");
69 QString str2 = QLatin1String("This is a test string");
70
71 QCOMPARE(str1.localeAwareCompare(str2), 0);
72
73 QBENCHMARK {
74 str1.localeAwareCompare(s: str2);
75 }
76}
77//! [0]
78
79//! [1]
80void TestBenchmark::multiple_data()
81{
82 QTest::addColumn<bool>(name: "useLocaleCompare");
83 QTest::newRow(dataTag: "locale aware compare") << true;
84 QTest::newRow(dataTag: "standard compare") << false;
85}
86//! [1]
87
88//! [2]
89void TestBenchmark::multiple()
90{
91 QFETCH(bool, useLocaleCompare);
92 QString str1 = QLatin1String("This is a test string");
93 QString str2 = QLatin1String("This is a test string");
94
95 int result;
96 if (useLocaleCompare) {
97 QBENCHMARK {
98 result = str1.localeAwareCompare(s: str2);
99 }
100 } else {
101 QBENCHMARK {
102 result = (str1 == str2);
103 }
104 }
105 Q_UNUSED(result);
106}
107//! [2]
108
109//! [3]
110void TestBenchmark::series_data()
111{
112 QTest::addColumn<bool>(name: "useLocaleCompare");
113 QTest::addColumn<int>(name: "stringSize");
114
115 for (int i = 1; i < 10000; i += 2000) {
116 QByteArray size = QByteArray::number(i);
117 QTest::newRow(dataTag: ("locale aware compare--" + size).constData()) << true << i;
118 QTest::newRow(dataTag: ("standard compare--" + size).constData()) << false << i;
119 }
120}
121//! [4]
122
123//! [5]
124void TestBenchmark::series()
125{
126 QFETCH(bool, useLocaleCompare);
127 QFETCH(int, stringSize);
128
129 QString str1 = QString().fill(c: 'A', size: stringSize);
130 QString str2 = QString().fill(c: 'A', size: stringSize);
131 int result;
132 if (useLocaleCompare) {
133 QBENCHMARK {
134 result = str1.localeAwareCompare(s: str2);
135 }
136 } else {
137 QBENCHMARK {
138 result = (str1 == str2);
139 }
140 }
141 Q_UNUSED(result);
142}
143//! [5]
144
145QTEST_MAIN(TestBenchmark)
146#include "benchmarking.moc"
147

source code of qtbase/examples/qtestlib/tutorial5/benchmarking.cpp