summaryrefslogtreecommitdiffstats
path: root/tests/auto/selftests/tst_selftests.cpp
blob: 39b41fbadad8a43566f34fd5d2d39d61509295ec (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
/****************************************************************************
**
** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the test suite of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** GNU Lesser General Public License Usage
** This file may be used under the terms of the GNU Lesser General Public
** License version 2.1 as published by the Free Software Foundation and
** appearing in the file LICENSE.LGPL included in the packaging of this
** file. Please review the following information to ensure the GNU Lesser
** General Public License version 2.1 requirements will be met:
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain additional
** rights. These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU General
** Public License version 3.0 as published by the Free Software Foundation
** and appearing in the file LICENSE.GPL included in the packaging of this
** file. Please review the following information to ensure the GNU General
** Public License version 3.0 requirements will be met:
** http://www.gnu.org/copyleft/gpl.html.
**
** Other Usage
** Alternatively, this file may be used in accordance with the terms and
** conditions contained in a signed written agreement between you and Nokia.
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/


#include <QtCore>
#include <QtTest/QtTest>
#include <QtXml/QXmlStreamReader>
#include <private/cycle_p.h>

class tst_Selftests: public QObject
{
    Q_OBJECT
private slots:
    void runSubTest_data();
    void runSubTest();
    void cleanupTestCase();

private:
    void doRunSubTest(QString const& subdir, QString const& logger, QStringList const& arguments );
};

struct BenchmarkResult
{
    qint64  total;
    qint64  iterations;
    QString unit;

    inline QString toString() const
    { return QString("total:%1, unit:%2, iterations:%3").arg(total).arg(unit).arg(iterations); }

    static BenchmarkResult parse(QString const&, QString*);
};

QT_BEGIN_NAMESPACE
namespace QTest
{
template <>
inline bool qCompare
    (BenchmarkResult const &r1, BenchmarkResult const &r2,
     const char* actual, const char* expected, const char* file, int line)
{
    // First make sure the iterations and unit match.
    if (r1.iterations != r2.iterations || r1.unit != r2.unit) {
        /* Nope - compare whole string for best failure message */
        return qCompare(r1.toString(), r2.toString(), actual, expected, file, line);
    }

    /*
        Now check the value.  Some variance is allowed, and how much depends on the
        measured unit.
    */
    qreal variance = 0.;
    if (r1.unit == "msec") {
        variance = 0.1;
    }
    else if (r1.unit == "instruction reads") {
        variance = 0.001;
    }
    else if (r1.unit == "ticks") {
        variance = 0.001;
    }
    if (variance == 0.) {
        /* No variance allowed - compare whole string */
        return qCompare(r1.toString(), r2.toString(), actual, expected, file, line);
    }

    if (qAbs(qreal(r1.total) - qreal(r2.total)) <= qreal(r1.total)*variance) {
        return compare_helper(true, "COMPARE()", file, line);
    }

    /* Whoops, didn't match.  Compare the whole string for the most useful failure message. */
    return qCompare(r1.toString(), r2.toString(), actual, expected, file, line);
}
}
QT_END_NAMESPACE

static QList<QByteArray> splitLines(QByteArray ba)
{
    ba.replace('\r', "");
    QList<QByteArray> out = ba.split('\n');

    // Replace any ` file="..."' or ` line="..."'  in XML with a generic location.
    static const char *markers[][2] = {
        { " file=\"", " file=\"__FILE__\"" },
        { " line=\"", " line=\"__LINE__\"" }
    };
    static const int markerCount = sizeof markers / sizeof markers[0];

    for (int i = 0; i < out.size(); ++i) {
        QByteArray& line = out[i];
        for (int j = 0; j < markerCount; ++j) {
            int index = line.indexOf(markers[j][0]);
            if (index == -1) {
                continue;
            }
            int end = line.indexOf('"', index + strlen(markers[j][0]));
            if (end == -1) {
                continue;
            }
            line.replace(index, end-index + 1, markers[j][1]);
        }
    }

    return out;
}

static QList<QByteArray> expectedResult(const QString &subdir, const QString &logger)
{
    QString suffix = logger;
    if (suffix.isEmpty()) {
        suffix = "txt";
    }
    QFile file(":/expected_" + subdir + "." + suffix);
    if (!file.open(QIODevice::ReadOnly))
        return QList<QByteArray>();
    return splitLines(file.readAll());
}

struct Logger
{
    Logger(QString const&, QString const&, QStringList const&);

    QString name;
    QString testdata_suffix;
    QStringList arguments;
};

Logger::Logger(QString const& _name, QString const& _testdata_suffix, QStringList const& _arguments)
    : name(_name)
    , testdata_suffix(_testdata_suffix)
    , arguments(_arguments)
{
}

static QList<Logger> allLoggers()
{
    return QList<Logger>()
        << Logger("plain",      "txt",      QStringList())
        << Logger("xml",        "xml",      QStringList() << "-xml")
        << Logger("xml flush",  "xml",      QStringList() << "-xml" << "-flush")
        << Logger("xunitxml",   "xunitxml", QStringList() << "-xunitxml")
        << Logger("lightxml",   "lightxml", QStringList() << "-lightxml")
    ;
}

void tst_Selftests::runSubTest_data()
{
    QTest::addColumn<QString>("subdir");
    QTest::addColumn<QString>("logger");
    QTest::addColumn<QStringList>("arguments");

    QStringList tests = QStringList()
        << "subtest"
        << "warnings"
        << "maxwarnings"
        << "cmptest"
//        << "alive"    // timer dependent
        << "globaldata"
        << "skipglobal"
        << "skip"
        << "strcmp"
        << "expectfail"
        << "sleep"
        << "fetchbogus"
        << "crashes"
        << "multiexec"
        << "failinit"
        << "failinitdata"
        << "skipinit"
        << "skipinitdata"
        << "datetime"
        << "singleskip"

        //on windows assert does nothing in release mode and blocks execution with a popup window in debug mode
#if !defined(Q_OS_WIN)
        << "assert"
#endif

        << "waitwithoutgui"
        << "differentexec"
#ifndef QT_NO_EXCEPTIONS
        // The machine that run the intel autotests will popup a dialog
        // with a warning that an uncaught exception was thrown.
        // This will time out and falsely fail, therefore we disable the test for that platform.
# if !defined(Q_CC_INTEL) || !defined(Q_OS_WIN)
        << "exceptionthrow"
# endif
#endif
        << "qexecstringlist"
        << "datatable"
        << "commandlinedata"

#if defined(__GNUC__) && defined(__i386) && defined(Q_OS_LINUX)
        << "benchlibcallgrind"
#endif
        << "benchlibeventcounter"
        << "benchliboptions"

        //### These tests are affected by timing and whether the CPU tick counter is
        //### monotonically increasing. They won't work on some machines so leave them off by default.
        //### Feel free to uncomment for your own testing.
#if 0
        << "benchlibwalltime"
        << "benchlibtickcounter"
#endif

        << "xunit"
        << "longstring"
        << "badxml"
    ;

    foreach (Logger const& logger, allLoggers()) {
        QString rowSuffix;
        if (logger.name != "plain") {
            rowSuffix = QString(" %1").arg(logger.name);
        }

        foreach (QString const& subtest, tests) {
            QStringList arguments = logger.arguments;
            if (subtest == "commandlinedata") {
                arguments << QString("fiveTablePasses fiveTablePasses:fiveTablePasses_data1 -v2").split(' ');
            }
            else if (subtest == "benchlibcallgrind") {
                arguments << "-callgrind";
            }
            else if (subtest == "benchlibeventcounter") {
                arguments << "-eventcounter";
            }
            else if (subtest == "benchliboptions") {
                arguments << "-eventcounter";
            }
            else if (subtest == "benchlibtickcounter") {
                arguments << "-tickcounter";
            }
            else if (subtest == "badxml") {
                arguments << "-eventcounter";
            }

            // These tests don't work right with loggers other than plain, usually because
            // they internally supply arguments to themselves.
            if (logger.name != "plain") {
                if (subtest == "differentexec") {
                    continue;
                }
                if (subtest == "qexecstringlist") {
                    continue;
                }
                if (subtest == "benchliboptions") {
                    continue;
                }
                if (subtest == "waitwithoutgui") {
                    continue;
                }
                // `crashes' will not output valid XML on platforms without a crash handler
                if (subtest == "crashes") {
                    continue;
                }
                // this test prints out some floats in the testlog and the formatting is
                // platform-specific and hard to predict.
                if (subtest == "subtest") {
                    continue;
                }
            }

            QTest::newRow(qPrintable(QString("%1%2").arg(subtest).arg(rowSuffix)))
                << subtest
                << logger.testdata_suffix
                << arguments
            ;
        }
    }
}

void tst_Selftests::doRunSubTest(QString const& subdir, QString const& logger, QStringList const& arguments )
{
    // For the plain text logger, we'll read straight from standard output.
    // For all other loggers (XML), we'll tell testlib to redirect to a file.
    // The reason is that tests are allowed to print to standard output, and
    // that means the test log is no longer guaranteed to be valid XML.
    QStringList extraArguments;
    QString logfile;
    if (logger != "txt") {
        logfile = "test_output";
        extraArguments << "-o" << logfile;
    }

    QProcess proc;
    proc.setEnvironment(QStringList(""));
    proc.start(subdir + "/" + subdir, QStringList() << arguments << extraArguments);
    QVERIFY2(proc.waitForFinished(), qPrintable(proc.errorString()));

    QByteArray out;
    if (logfile.isEmpty()) {
        out = proc.readAllStandardOutput();
    }
    else {
        QFile file(logfile);
        if (file.open(QIODevice::ReadOnly))
            out = file.readAll();
    }

    const QByteArray err(proc.readAllStandardError());

    /*
        Some tests may output unpredictable strings to stderr, which we'll ignore.

        For instance, uncaught exceptions on Windows might say (depending on Windows
        version and JIT debugger settings):
        "This application has requested the Runtime to terminate it in an unusual way.
        Please contact the application's support team for more information."

        Also, tests which use valgrind may generate warnings if the toolchain is
        newer than the valgrind version, such that valgrind can't understand the
        debug information on the binary.
    */
    if (subdir != QLatin1String("exceptionthrow")
        && subdir != QLatin1String("fetchbogus")
        && subdir != QLatin1String("xunit")
        && subdir != QLatin1String("benchlibcallgrind"))
        QVERIFY2(err.isEmpty(), err.constData());

    QList<QByteArray> res = splitLines(out);
    QList<QByteArray> exp = expectedResult(subdir, logger);

    if (exp.count() == 0) {
        QList<QList<QByteArray> > expArr;
        int i = 1;
        do {
            exp = expectedResult(subdir + QString("_%1").arg(i++), logger);
            if (exp.count())
            expArr += exp;
        } while(exp.count());

        for (int j = 0; j < expArr.count(); ++j) {
            if (res.count() == expArr.at(j).count()) {
                exp = expArr.at(j);
                break;
            }
        }
    } else {
        QCOMPARE(res.count(), exp.count());
    }

    if (logger == "xunitxml" || logger == "xml" || logger == "lightxml") {
        QByteArray xml(out);
        // lightxml intentionally skips the root element, which technically makes it
        // not valid XML.
        // We'll add that ourselves for the purpose of validation.
        if (logger == "lightxml") {
            xml.prepend("<root>");
            xml.append("</root>");
        }

        QXmlStreamReader reader(xml);

        while(!reader.atEnd())
            reader.readNext();

        QVERIFY2(!reader.error(), qPrintable(QString("line %1, col %2: %3")
            .arg(reader.lineNumber())
            .arg(reader.columnNumber())
            .arg(reader.errorString())
        ));
    }

    bool benchmark = false;
    for (int i = 0; i < res.count(); ++i) {
        QByteArray line = res.at(i);
        if (line.startsWith("Config: Using QTest"))
            continue;
        // the __FILE__ __LINE__ output is compiler dependent, skip it
        if (line.startsWith("   Loc: [") && line.endsWith(")]"))
            continue;
        if (line.endsWith(" : failure location"))
            continue;

        const QString output(QString::fromLatin1(line));
        const QString expected(QString::fromLatin1(exp.at(i)).replace("@INSERT_QT_VERSION_HERE@", QT_VERSION_STR));

        if (line.contains("ASSERT") && output != expected) {
            QEXPECT_FAIL("assert",          "QTestLib prints out the absolute path.", Continue);
            QEXPECT_FAIL("assert xml",      "QTestLib prints out the absolute path.", Continue);
            QEXPECT_FAIL("assert xml flush","QTestLib prints out the absolute path.", Continue);
            QEXPECT_FAIL("assert lightxml", "QTestLib prints out the absolute path.", Continue);
            QEXPECT_FAIL("assert xunitxml", "QTestLib prints out the absolute path.", Continue);
        }

        /* On some platforms we compile without RTTI, and as a result we never throw an exception. */
        if(expected.startsWith(QLatin1String("FAIL!  : tst_Exception::throwException() Caught unhandled exce")) && expected != output)
            QCOMPARE(output.simplified(), QString::fromLatin1("tst_Exception::throwException()").simplified());
        else
        {
            if(output != expected && qstrcmp(QTest::currentDataTag(), "subtest") == 0)
            {
            /* The floating point formatting differs between platforms, so let's just skip it. */
            continue;
            }
            else {
                /*
                   Are we expecting this line to be a benchmark result?
                   If so, don't do a literal comparison, since results have some natural variance.
                */
                if (benchmark || line.startsWith("<BenchmarkResult")) {
                    QString error;

                    BenchmarkResult actualResult = BenchmarkResult::parse(output, &error);
                    QVERIFY2(error.isEmpty(), qPrintable(QString("Actual line didn't parse as benchmark result: %1\nLine: %2").arg(error).arg(output)));

                    BenchmarkResult expectedResult = BenchmarkResult::parse(expected, &error);
                    QVERIFY2(error.isEmpty(), qPrintable(QString("Expected line didn't parse as benchmark result: %1\nLine: %2").arg(error).arg(expected)));

                    QCOMPARE(actualResult, expectedResult);
                }
                else {
                    QCOMPARE(output, expected);
                }
            }
        }

        benchmark = line.startsWith("RESULT : ");
    }
}

void tst_Selftests::runSubTest()
{
    QFETCH(QString, subdir);
    QFETCH(QString, logger);
    QFETCH(QStringList, arguments);

    doRunSubTest(subdir, logger, arguments);
}

// attribute must contain ="
QString extractXmlAttribute(const QString &line, const char *attribute)
{
    int index = line.indexOf(attribute);
    if (index == -1)
        return QString();
    int end = line.indexOf('"', index + strlen(attribute));
    if (end == -1)
        return QString();

    QString result = line.mid(index + strlen(attribute), end - index - strlen(attribute));
    if (result.isEmpty())
        return ""; // ensure empty but not null
    return result;
}

/* Parse line into the BenchmarkResult it represents. */
BenchmarkResult BenchmarkResult::parse(QString const& line, QString* error)
{
    if (error) *error = QString();
    BenchmarkResult out;

    QString remaining = line.trimmed();

    if (remaining.isEmpty()) {
        if (error) *error = "Line is empty";
        return out;
    }

    if (line.startsWith("<BenchmarkResult ")) {
        // XML result
        // format:
        //   <BenchmarkResult metric="$unit" tag="$tag" value="$total" iterations="$iterations" />
        if (!line.endsWith("/>")) {
            if (error) *error = "unterminated XML";
            return out;
        }

        QString unit = extractXmlAttribute(line, " metric=\"");
        QString sTotal = extractXmlAttribute(line, " value=\"");
        QString sIterations = extractXmlAttribute(line, " iterations=\"");
        if (unit.isNull() || sTotal.isNull() || sIterations.isNull()) {
            if (error) *error = "XML snippet did not contain all required values";
            return out;
        }

        bool ok;
#if QT_VERSION >= 0x040700
        // Qt 4.7 uses floating point
        double total = sTotal.toDouble(&ok);
        if (!ok) {
            if (error) *error = sTotal + " is not a valid number";
            return out;
        }
        double iterations = sIterations.toDouble(&ok);
        if (!ok) {
            if (error) *error = sIterations + " is not a valid number";
            return out;
        }
#else
        qlonglong total = sTotal.toLongLong(&ok);
        if (!ok) {
            if (error) *error = sTotal + " is not a valid integer";
            return out;
        }
        qlonglong iterations = sIterations.toLongLong(&ok);
        if (!ok) {
            if (error) *error = sIterations + " is not a valid integer";
            return out;
        }
#endif

        out.unit = unit;
        out.total = total;
        out.iterations = iterations;
        return out;
    }
    // Text result

    /* This code avoids using a QRegExp because QRegExp might be broken. */

    /* Sample format: 4,000 msec per iteration (total: 4,000, iterations: 1) */

    QString sFirstNumber;
    while (!remaining.isEmpty() && !remaining.at(0).isSpace()) {
        sFirstNumber += remaining.at(0);
        remaining.remove(0,1);
    }
    remaining = remaining.trimmed();

    /* 4,000 -> 4000 */
    sFirstNumber.remove(',');

    /* Should now be parseable as floating point */
    bool ok;
    double firstNumber = sFirstNumber.toDouble(&ok);
    if (!ok) {
        if (error) *error = sFirstNumber + " (at beginning of line) is not a valid number";
        return out;
    }

    /* Remaining: msec per iteration (total: 4000, iterations: 1) */
    static const char periterbit[] = " per iteration (total: ";
    QString unit;
    while (!remaining.startsWith(periterbit) && !remaining.isEmpty()) {
        unit += remaining.at(0);
        remaining.remove(0,1);
    }
    if (remaining.isEmpty()) {
        if (error) *error = "Could not find pattern: '<unit> per iteration (total: '";
        return out;
    }

    remaining = remaining.mid(sizeof(periterbit)-1);

    /* Remaining: 4,000, iterations: 1) */
    static const char itersbit[] = ", iterations: ";
    QString sTotal;
    while (!remaining.startsWith(itersbit) && !remaining.isEmpty()) {
        sTotal += remaining.at(0);
        remaining.remove(0,1);
    }
    if (remaining.isEmpty()) {
        if (error) *error = "Could not find pattern: '<number>, iterations: '";
        return out;
    }

    remaining = remaining.mid(sizeof(itersbit)-1);

    /* 4,000 -> 4000 */
    sTotal.remove(',');

    double total = sTotal.toDouble(&ok);
    if (!ok) {
        if (error) *error = sTotal + " (total) is not a valid number";
        return out;
    }

    /* Remaining: 1) */
    QString sIters;
    while (remaining != QLatin1String(")") && !remaining.isEmpty()) {
        sIters += remaining.at(0);
        remaining.remove(0,1);
    }
    if (remaining.isEmpty()) {
        if (error) *error = "Could not find pattern: '<num>)'";
        return out;
    }
    qint64 iters = sIters.toLongLong(&ok);
    if (!ok) {
        if (error) *error = sIters + " (iterations) is not a valid integer";
        return out;
    }

    double calcFirstNumber = double(total)/double(iters);
    if (!qFuzzyCompare(firstNumber, calcFirstNumber)) {
        if (error) *error = QString("total/iters is %1, but benchlib output result as %2").arg(calcFirstNumber).arg(firstNumber);
        return out;
    }

    out.total = total;
    out.unit = unit;
    out.iterations = iters;
    return out;
}

void tst_Selftests::cleanupTestCase()
{
    QFile::remove("test_output");
}

QTEST_MAIN(tst_Selftests)

#include "tst_selftests.moc"