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Diffstat (limited to 'tests/auto/qscriptv8testsuite/abstracttestsuite.cpp')
-rw-r--r-- | tests/auto/qscriptv8testsuite/abstracttestsuite.cpp | 481 |
1 files changed, 481 insertions, 0 deletions
diff --git a/tests/auto/qscriptv8testsuite/abstracttestsuite.cpp b/tests/auto/qscriptv8testsuite/abstracttestsuite.cpp new file mode 100644 index 0000000..d47eb24 --- /dev/null +++ b/tests/auto/qscriptv8testsuite/abstracttestsuite.cpp @@ -0,0 +1,481 @@ +/**************************************************************************** +** +** 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. +** +** $QT_BEGIN_LICENSE:LGPL$ +** No Commercial Usage +** This file contains pre-release code and may not be distributed. +** You may use this file in accordance with the terms and conditions +** contained in the Technology Preview License Agreement accompanying +** this package. +** +** GNU Lesser General Public License Usage +** Alternatively, 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. +** +** If you have questions regarding the use of this file, please contact +** Nokia at qt-info@nokia.com. +** +** +** +** +** +** +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "abstracttestsuite.h" +#include <QtTest/QtTest> +#include <QtCore/qset.h> +#include <QtCore/qtextstream.h> + +/*! + AbstractTestSuite provides a way of building QtTest test objects + dynamically. The use case is integration of JavaScript test suites + into QtTest autotests. + + Subclasses add their tests functions with addTestFunction() in the + constructor, and must reimplement runTestFunction(). Additionally, + subclasses can reimplement initTestCase() and cleanupTestCase() + (but make sure to call the base implementation). + + AbstractTestSuite uses configuration files for getting information + about skipped tests (skip.txt) and expected test failures + (expect_fail.txt). Subclasses must reimplement + createSkipConfigFile() and createExpectFailConfigFile() for + creating these files, and configData() for processing an entry of + such a file. + + The config file format is as follows: + - Lines starting with '#' are skipped. + - Lines of the form [SYMBOL] means that the upcoming data + should only be processed if the given SYMBOL is defined on + this platform. + - Any other line is split on ' | ' and handed off to the client. + + Subclasses must provide a default tests directory (where the + subclass expects to find the script files to run as tests), and a + default config file directory. Some environment variables can be + used to affect where AbstractTestSuite will look for files: + + - QTSCRIPT_TEST_CONFIG_DIR: Overrides the default test config path. + + - QTSCRIPT_TEST_CONFIG_SUFFIX: Is appended to "skip" and + "expect_fail" to create the test config name. This makes it easy to + maintain skip- and expect_fail-files corresponding to different + revisions of a test suite, and switch between them. + + - QTSCRIPT_TEST_DIR: Overrides the default test dir. + + AbstractTestSuite does _not_ define how the test dir itself is + processed or how tests are run; this is left up to the subclass. + + If no config files are found, AbstractTestSuite will ask the + subclass to create a default skip file. Also, the + shouldGenerateExpectedFailures variable will be set to true. The + subclass should check for this when a test fails, and add an entry + to its set of expected failures. When all tests have been run, + AbstractTestSuite will ask the subclass to create the expect_fail + file based on the tests that failed. The next time the autotest is + run, the created config files will be used. + + The reason for skipping a test is usually that it takes a very long + time to complete (or even hangs completely), or it crashes. It's + not possible for the test runner to know in advance which tests are + problematic, which is why the entries to the skip file are + typically added manually. When running tests for the first time, it + can be useful to run the autotest with the -v1 command line option, + so you can see the name of each test before it's run, and can add a + skip entry if appropriate. +*/ + +// Helper class for constructing the test class's QMetaObject contents +// at runtime. +class TestMetaObjectBuilder +{ +public: + TestMetaObjectBuilder(const QByteArray &className, + const QMetaObject *superClass); + + void appendPrivateVoidSlot(const char *signature); + void appendPrivateVoidSlot(const QString &signature) + { appendPrivateVoidSlot(signature.toLatin1().constData()); } + + void assignContents(QMetaObject &); + +private: + void appendString(const char *); + void finalize(); + + const QByteArray m_className; + const QMetaObject *m_superClass; + QVector<uint> m_data; + QVector<char> m_stringdata; + int m_emptyStringOffset; + bool m_finalized; +}; + +TestMetaObjectBuilder::TestMetaObjectBuilder( + const QByteArray &className, + const QMetaObject *superClass) + : m_className(className), m_superClass(superClass), + m_finalized(false) +{ + // header + m_data << 1 // revision + << 0 // classname + << 0 << 0 // classinfo + << 0 << 10 // methods (backpatched later) + << 0 << 0 // properties + << 0 << 0 // enums/sets + ; + + appendString(className.constData()); + m_emptyStringOffset = m_stringdata.size(); + appendString(""); +} + +void TestMetaObjectBuilder::appendString(const char *s) +{ + char c; + do { + c = *(s++); + m_stringdata << c; + } while (c != '\0'); +} + +void TestMetaObjectBuilder::appendPrivateVoidSlot(const char *signature) +{ + static const int methodCountOffset = 4; + // signature, parameters, type, tag, flags + m_data << m_stringdata.size() + << m_emptyStringOffset + << m_emptyStringOffset + << m_emptyStringOffset + << 0x08; + appendString(signature); + ++m_data[methodCountOffset]; +} + +void TestMetaObjectBuilder::finalize() +{ + if (m_finalized) + return; + m_data << 0; // eod + m_finalized = true; +} + +/** + Assigns this builder's contents to the meta-object \a mo. It's up + to the caller to ensure that this builder (and hence, its data) + stays alive as long as needed. +*/ +void TestMetaObjectBuilder::assignContents(QMetaObject &mo) +{ + finalize(); + mo.d.superdata = m_superClass; + mo.d.stringdata = m_stringdata.constData(); + mo.d.data = m_data.constData(); + mo.d.extradata = 0; +} + + +class TestConfigClientInterface; +// For parsing information about skipped tests and expected failures. +class TestConfigParser +{ +public: + static void parse(const QString &path, + TestConfig::Mode mode, + TestConfigClientInterface *client); + +private: + static QString unescape(const QString &); + static bool isKnownSymbol(const QString &); + static bool isDefined(const QString &); + + static QSet<QString> knownSymbols; + static QSet<QString> definedSymbols; +}; + +QSet<QString> TestConfigParser::knownSymbols; +QSet<QString> TestConfigParser::definedSymbols; + +/** + Parses the config file at the given \a path in the given \a mode. + Handling of errors and data is delegated to the given \a client. +*/ +void TestConfigParser::parse(const QString &path, + TestConfig::Mode mode, + TestConfigClientInterface *client) +{ + QFile file(path); + if (!file.open(QIODevice::ReadOnly)) + return; + QTextStream stream(&file); + int lineNumber = 0; + QString predicate; + const QString separator = QString::fromLatin1(" | "); + while (!stream.atEnd()) { + ++lineNumber; + QString line = stream.readLine(); + if (line.isEmpty()) + continue; + if (line.startsWith('#')) // Comment + continue; + if (line.startsWith('[')) { // Predicate + if (!line.endsWith(']')) { + client->configError(path, "malformed predicate", lineNumber); + return; + } + QString symbol = line.mid(1, line.size()-2); + if (isKnownSymbol(symbol)) { + predicate = symbol; + } else { + qWarning("symbol %s is not known -- add it to TestConfigParser!", qPrintable(symbol)); + predicate = QString(); + } + } else { + if (predicate.isEmpty() || isDefined(predicate)) { + QStringList parts = line.split(separator, QString::KeepEmptyParts); + for (int i = 0; i < parts.size(); ++i) + parts[i] = unescape(parts[i]); + client->configData(mode, parts); + } + } + } +} + +QString TestConfigParser::unescape(const QString &str) +{ + return QString(str).replace("\\n", "\n"); +} + +bool TestConfigParser::isKnownSymbol(const QString &symbol) +{ + if (knownSymbols.isEmpty()) { + knownSymbols + // If you add a symbol here, add a case for it in + // isDefined() as well. + << "Q_OS_LINUX" + << "Q_OS_SOLARIS" + << "Q_OS_WINCE" + << "Q_OS_SYMBIAN" + << "Q_CC_MSVC" + << "Q_CC_MINGW" + ; + } + return knownSymbols.contains(symbol); +} + +bool TestConfigParser::isDefined(const QString &symbol) +{ + if (definedSymbols.isEmpty()) { + definedSymbols +#ifdef Q_OS_LINUX + << "Q_OS_LINUX" +#endif +#ifdef Q_OS_SOLARIS + << "Q_OS_SOLARIS" +#endif +#ifdef Q_OS_WINCE + << "Q_OS_WINCE" +#endif +#ifdef Q_OS_SYMBIAN + << "Q_OS_SYMBIAN" +#endif +#ifdef Q_CC_MSVC + << "Q_CC_MSVC" +#endif +#ifdef Q_CC_MINGW + << "Q_CC_MINGW" +#endif + ; + } + return definedSymbols.contains(symbol); +} + + +QMetaObject AbstractTestSuite::staticMetaObject; + +const QMetaObject *AbstractTestSuite::metaObject() const +{ + return &staticMetaObject; +} + +void *AbstractTestSuite::qt_metacast(const char *_clname) +{ + if (!_clname) return 0; + if (!strcmp(_clname, staticMetaObject.d.stringdata)) + return static_cast<void*>(const_cast<AbstractTestSuite*>(this)); + return QObject::qt_metacast(_clname); +} + +int AbstractTestSuite::qt_metacall(QMetaObject::Call _c, int _id, void **_a) +{ + _id = QObject::qt_metacall(_c, _id, _a); + if (_id < 0) + return _id; + if (_c == QMetaObject::InvokeMetaMethod) { + switch (_id) { + case 0: + initTestCase(); + break; + case 1: + cleanupTestCase(); + break; + default: + // If another method is added above, this offset must be adjusted. + runTestFunction(_id - 2); + } + _id -= staticMetaObject.methodCount() - staticMetaObject.methodOffset(); + } + return _id; +} + +AbstractTestSuite::AbstractTestSuite(const QByteArray &className, + const QString &defaultTestsPath, + const QString &defaultConfigPath) + : shouldGenerateExpectedFailures(false), + metaBuilder(new TestMetaObjectBuilder(className, &QObject::staticMetaObject)) +{ + QString testConfigPath = qgetenv("QTSCRIPT_TEST_CONFIG_DIR"); + if (testConfigPath.isEmpty()) + testConfigPath = defaultConfigPath; + QString configSuffix = qgetenv("QTSCRIPT_TEST_CONFIG_SUFFIX"); + skipConfigPath = QString::fromLatin1("%0/skip%1.txt") + .arg(testConfigPath).arg(configSuffix); + expectFailConfigPath = QString::fromLatin1("%0/expect_fail%1.txt") + .arg(testConfigPath).arg(configSuffix); + + QString testsPath = qgetenv("QTSCRIPT_TEST_DIR"); + if (testsPath.isEmpty()) + testsPath = defaultTestsPath; + testsDir = QDir(testsPath); + + addTestFunction("initTestCase"); + addTestFunction("cleanupTestCase"); + + // Subclass constructors should add their custom test functions to + // the meta-object and call finalizeMetaObject(). +} + +AbstractTestSuite::~AbstractTestSuite() +{ + delete metaBuilder; +} + +void AbstractTestSuite::addTestFunction(const QString &name, + DataFunctionCreation dfc) +{ + if (dfc == CreateDataFunction) { + QString dataSignature = QString::fromLatin1("%0_data()").arg(name); + metaBuilder->appendPrivateVoidSlot(dataSignature); + } + QString signature = QString::fromLatin1("%0()").arg(name); + metaBuilder->appendPrivateVoidSlot(signature); +} + +void AbstractTestSuite::finalizeMetaObject() +{ + metaBuilder->assignContents(staticMetaObject); +} + +void AbstractTestSuite::initTestCase() +{ + if (!testsDir.exists()) { + QString message = QString::fromLatin1("tests directory (%0) doesn't exist.") + .arg(testsDir.path()); + QFAIL(qPrintable(message)); + return; + } + + if (QFileInfo(skipConfigPath).exists()) + TestConfigParser::parse(skipConfigPath, TestConfig::Skip, this); + else + createSkipConfigFile(); + + if (QFileInfo(expectFailConfigPath).exists()) + TestConfigParser::parse(expectFailConfigPath, TestConfig::ExpectFail, this); + else + shouldGenerateExpectedFailures = true; +} + +void AbstractTestSuite::cleanupTestCase() +{ + if (shouldGenerateExpectedFailures) + createExpectFailConfigFile(); +} + +void AbstractTestSuite::configError(const QString &path, const QString &message, int lineNumber) +{ + QString output; + output.append(path); + if (lineNumber != -1) + output.append(":").append(QString::number(lineNumber)); + output.append(": ").append(message); + QFAIL(qPrintable(output)); +} + +void AbstractTestSuite::createSkipConfigFile() +{ + QFile file(skipConfigPath); + if (!file.open(QIODevice::WriteOnly)) + return; + QWARN(qPrintable(QString::fromLatin1("creating %0").arg(skipConfigPath))); + QTextStream stream(&file); + + writeSkipConfigFile(stream); + + file.close(); +} + +void AbstractTestSuite::createExpectFailConfigFile() +{ + QFile file(expectFailConfigPath); + if (!file.open(QFile::WriteOnly)) + return; + QWARN(qPrintable(QString::fromLatin1("creating %0").arg(expectFailConfigPath))); + QTextStream stream(&file); + + writeExpectFailConfigFile(stream); + + file.close(); +} + +/*! + Convenience function for reading all contents of a file. + */ +QString AbstractTestSuite::readFile(const QString &filename) +{ + QFile file(filename); + if (!file.open(QFile::ReadOnly)) + return QString(); + QTextStream stream(&file); + stream.setCodec("UTF-8"); + return stream.readAll(); +} + +/*! + Escapes characters in the string \a str so it's suitable for writing + to a config file. + */ +QString AbstractTestSuite::escape(const QString &str) +{ + return QString(str).replace("\n", "\\n"); +} |