test_ftrace.cpp

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/*
    KWin - the KDE window manager
    This file is part of the KDE project.
 
    SPDX-FileCopyrightText: 2021 David Edmundson <davidedmundson@kde.org>
 
    SPDX-License-Identifier: LGPL-2.0-or-later
*/
 
#include <QObject>
#include <QTemporaryFile>
#include <QTest>
 
#include "ftrace.h"
 
class TestFTrace : public QObject
{
    Q_OBJECT
public:
    TestFTrace();
private Q_SLOTS:
    void benchmarkTraceOff();
    void benchmarkTraceDurationOff();
    void enable();
 
private:
    QTemporaryFile m_tempFile;
};
 
TestFTrace::TestFTrace()
{
    m_tempFile.open();
    qputenv("KWIN_PERF_FTRACE_FILE", m_tempFile.fileName().toLatin1());
 
    KWin::FTraceLogger::create();
}
 
void TestFTrace::benchmarkTraceOff()
{
    // this macro should no-op, so take no time at all
    QBENCHMARK {
        fTrace("BENCH", 123, "foo");
    }
}
 
void TestFTrace::benchmarkTraceDurationOff()
{
    QBENCHMARK {
        fTraceDuration("BENCH", 123, "foo");
    }
}
 
void TestFTrace::enable()
{
    KWin::FTraceLogger::self()->setEnabled(true);
    QVERIFY(KWin::FTraceLogger::self()->isEnabled());
 
    {
        fTrace("TEST", 123, "foo");
        fTraceDuration("TEST_DURATION", "boo");
        fTrace("TEST", 123, "foo");
    }
 
    QCOMPARE(m_tempFile.readLine(), "TEST123foo\n");
    QCOMPARE(m_tempFile.readLine(), "TEST_DURATIONboo begin_ctx=1\n");
    QCOMPARE(m_tempFile.readLine(), "TEST123foo\n");
    QCOMPARE(m_tempFile.readLine(), "TEST_DURATIONboo end_ctx=1\n");
}
 
QTEST_MAIN(TestFTrace)
 
#include "test_ftrace.moc"