Files
qt-creator/src/plugins/autotest/qtest/qttestparser.cpp
Christian Stenger 572b04a00a AutoTest: Find data tags of inherited functions
Task-number: QTCREATORBUG-17522
Change-Id: I9fa1db3c2d7f338afe343fc835b9e3dbae353131
Reviewed-by: David Schulz <david.schulz@qt.io>
2017-01-06 06:19:44 +00:00

327 lines
14 KiB
C++

/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of Qt Creator.
**
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
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** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3 as published by the Free Software
** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-3.0.html.
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****************************************************************************/
#include "qttestparser.h"
#include "qttesttreeitem.h"
#include "qttestvisitors.h"
#include "qttest_utils.h"
#include "../autotest_utils.h"
#include <cplusplus/TypeOfExpression.h>
namespace Autotest {
namespace Internal {
TestTreeItem *QtTestParseResult::createTestTreeItem() const
{
return itemType == TestTreeItem::Root ? 0 : QtTestTreeItem::createTestItem(this);
}
static bool includesQtTest(const CPlusPlus::Document::Ptr &doc, const CPlusPlus::Snapshot &snapshot)
{
static QStringList expectedHeaderPrefixes
= Utils::HostOsInfo::isMacHost()
? QStringList({ "QtTest.framework/Headers", "QtTest" }) : QStringList({ "QtTest" });
const QList<CPlusPlus::Document::Include> includes = doc->resolvedIncludes();
foreach (const CPlusPlus::Document::Include &inc, includes) {
// TODO this short cut works only for #include <QtTest>
// bad, as there could be much more different approaches
if (inc.unresolvedFileName() == QLatin1String("QtTest")) {
foreach (const QString &prefix, expectedHeaderPrefixes) {
if (inc.resolvedFileName().endsWith(QString("%1/QtTest").arg(prefix)))
return true;
}
}
}
const QSet<QString> allIncludes = snapshot.allIncludesForDocument(doc->fileName());
foreach (const QString &include, allIncludes) {
foreach (const QString &prefix, expectedHeaderPrefixes) {
if (include.endsWith(QString("%1/qtest.h").arg(prefix)))
return true;
}
}
return false;
}
static bool qtTestLibDefined(const QString &fileName)
{
const QList<CppTools::ProjectPart::Ptr> parts =
CppTools::CppModelManager::instance()->projectPart(fileName);
if (parts.size() > 0)
return parts.at(0)->projectDefines.contains("#define QT_TESTLIB_LIB");
return false;
}
static QString testClass(const CppTools::CppModelManager *modelManager,
const CPlusPlus::Snapshot &snapshot, const QString &fileName)
{
const QByteArray &fileContent = CppParser::getFileContent(fileName);
CPlusPlus::Document::Ptr document = modelManager->document(fileName);
if (document.isNull())
return QString();
const QList<CPlusPlus::Document::MacroUse> macros = document->macroUses();
foreach (const CPlusPlus::Document::MacroUse &macro, macros) {
if (!macro.isFunctionLike())
continue;
const QByteArray name = macro.macro().name();
if (QTestUtils::isQTestMacro(name)) {
const CPlusPlus::Document::Block arg = macro.arguments().at(0);
return QLatin1String(fileContent.mid(arg.bytesBegin(),
arg.bytesEnd() - arg.bytesBegin()));
}
}
// check if one has used a self-defined macro or QTest::qExec() directly
document = snapshot.preprocessedDocument(fileContent, fileName);
document->check();
CPlusPlus::AST *ast = document->translationUnit()->ast();
TestAstVisitor astVisitor(document, snapshot);
astVisitor.accept(ast);
return astVisitor.className();
}
static CPlusPlus::Document::Ptr declaringDocument(CPlusPlus::Document::Ptr doc,
const CPlusPlus::Snapshot &snapshot,
const QString &testCaseName,
const QStringList &alternativeFiles = {},
unsigned *line = 0, unsigned *column = 0)
{
CPlusPlus::Document::Ptr declaringDoc;
CPlusPlus::TypeOfExpression typeOfExpr;
typeOfExpr.init(doc, snapshot);
QList<CPlusPlus::LookupItem> lookupItems = typeOfExpr(testCaseName.toUtf8(),
doc->globalNamespace());
// fallback for inherited functions
if (lookupItems.size() == 0 && !alternativeFiles.isEmpty()) {
for (const QString &alternativeFile : alternativeFiles) {
if (snapshot.contains(alternativeFile)) {
CPlusPlus::Document::Ptr document = snapshot.document(alternativeFile);
CPlusPlus::TypeOfExpression typeOfExpr; // we need a new one with no bindings
typeOfExpr.init(document, snapshot);
lookupItems = typeOfExpr(testCaseName.toUtf8(), document->globalNamespace());
if (lookupItems.size() != 0)
break;
}
}
}
if (lookupItems.size()) {
if (CPlusPlus::Symbol *symbol = lookupItems.first().declaration()) {
if (CPlusPlus::Class *toeClass = symbol->asClass()) {
const QString declFileName = QLatin1String(toeClass->fileId()->chars(),
toeClass->fileId()->size());
declaringDoc = snapshot.document(declFileName);
if (line)
*line = toeClass->line();
if (column)
*column = toeClass->column() - 1;
}
}
}
return declaringDoc;
}
static QSet<QString> filesWithDataFunctionDefinitions(
const QMap<QString, QtTestCodeLocationAndType> &testFunctions)
{
QSet<QString> result;
QMap<QString, QtTestCodeLocationAndType>::ConstIterator it = testFunctions.begin();
const QMap<QString, QtTestCodeLocationAndType>::ConstIterator end = testFunctions.end();
for ( ; it != end; ++it) {
const QString &key = it.key();
if (key.endsWith("_data") && testFunctions.contains(key.left(key.size() - 5)))
result.insert(it.value().m_name);
}
return result;
}
static QMap<QString, QtTestCodeLocationList> checkForDataTags(const QString &fileName,
const CPlusPlus::Snapshot &snapshot)
{
const QByteArray fileContent = CppParser::getFileContent(fileName);
CPlusPlus::Document::Ptr document = snapshot.preprocessedDocument(fileContent, fileName);
document->check();
CPlusPlus::AST *ast = document->translationUnit()->ast();
TestDataFunctionVisitor visitor(document);
visitor.accept(ast);
return visitor.dataTags();
}
static QMap<QString, QtTestCodeLocationAndType> baseClassTestFunctions(const QSet<QString> &bases,
const CPlusPlus::Document::Ptr &doc, const CPlusPlus::Snapshot &snapshot)
{
QMap<QString, QtTestCodeLocationAndType> testFunctions;
for (const QString &baseClassName : bases) {
TestVisitor baseVisitor(baseClassName, snapshot);
baseVisitor.setInheritedMode(true);
CPlusPlus::Document::Ptr declaringDoc = declaringDocument(doc, snapshot, baseClassName);
if (declaringDoc.isNull())
continue;
baseVisitor.accept(declaringDoc->globalNamespace());
if (baseVisitor.resultValid())
testFunctions.unite(baseVisitor.privateSlots());
const QSet<QString> currentBaseBases = baseVisitor.baseClasses();
// recursively check base classes
testFunctions.unite(baseClassTestFunctions(currentBaseBases, doc, snapshot));
}
return testFunctions;
}
static QtTestCodeLocationList tagLocationsFor(const QtTestParseResult *func,
const QMap<QString, QtTestCodeLocationList> &dataTags)
{
if (!func->inherited())
return dataTags.value(func->name);
QMap<QString, QtTestCodeLocationList>::ConstIterator it = dataTags.begin();
QMap<QString, QtTestCodeLocationList>::ConstIterator end = dataTags.end();
const int lastColon = func->name.lastIndexOf(':');
QString funcName = lastColon == -1 ? func->name : func->name.mid(lastColon - 1);
for ( ; it != end; ++it) {
if (it.key().endsWith(funcName))
return it.value();
}
return QtTestCodeLocationList();
}
static bool handleQtTest(QFutureInterface<TestParseResultPtr> futureInterface,
CPlusPlus::Document::Ptr document,
const CPlusPlus::Snapshot &snapshot,
const QString &oldTestCaseName,
const QStringList &alternativeFiles,
const Core::Id &id)
{
const CppTools::CppModelManager *modelManager = CppTools::CppModelManager::instance();
const QString &fileName = document->fileName();
QString testCaseName(testClass(modelManager, snapshot, fileName));
// we might be in a reparse without the original entry point with the QTest::qExec()
if (testCaseName.isEmpty())
testCaseName = oldTestCaseName;
if (!testCaseName.isEmpty()) {
unsigned line = 0;
unsigned column = 0;
CPlusPlus::Document::Ptr declaringDoc = declaringDocument(document, snapshot, testCaseName,
alternativeFiles, &line, &column);
if (declaringDoc.isNull())
return false;
TestVisitor visitor(testCaseName, snapshot);
visitor.accept(declaringDoc->globalNamespace());
if (!visitor.resultValid())
return false;
QMap<QString, QtTestCodeLocationAndType> testFunctions = visitor.privateSlots();
// gather appropriate information of base classes as well
testFunctions.unite(baseClassTestFunctions(visitor.baseClasses(), declaringDoc, snapshot));
const QSet<QString> &files = filesWithDataFunctionDefinitions(testFunctions);
// TODO: change to QHash<>
QMap<QString, QtTestCodeLocationList> dataTags;
foreach (const QString &file, files)
dataTags.unite(checkForDataTags(file, snapshot));
QtTestParseResult *parseResult = new QtTestParseResult(id);
parseResult->itemType = TestTreeItem::TestCase;
parseResult->fileName = declaringDoc->fileName();
parseResult->name = testCaseName;
parseResult->displayName = testCaseName;
parseResult->line = line;
parseResult->column = column;
QList<CppTools::ProjectPart::Ptr> projectParts = modelManager->projectPart(fileName);
if (projectParts.isEmpty()) // happens if shutting down while parsing
return false;
parseResult->proFile = projectParts.first()->projectFile;
QMap<QString, QtTestCodeLocationAndType>::ConstIterator it = testFunctions.begin();
const QMap<QString, QtTestCodeLocationAndType>::ConstIterator end = testFunctions.end();
for ( ; it != end; ++it) {
const QtTestCodeLocationAndType &location = it.value();
QtTestParseResult *func = new QtTestParseResult(id);
func->itemType = location.m_type;
func->name = testCaseName + "::" + it.key();
func->displayName = it.key();
func->fileName = location.m_name;
func->line = location.m_line;
func->column = location.m_column;
func->setInherited(location.m_inherited);
const QtTestCodeLocationList &tagLocations = tagLocationsFor(func, dataTags);
foreach (const QtTestCodeLocationAndType &tag, tagLocations) {
QtTestParseResult *dataTag = new QtTestParseResult(id);
dataTag->itemType = tag.m_type;
dataTag->name = tag.m_name;
dataTag->displayName = tag.m_name;
dataTag->fileName = testFunctions.value(it.key() + "_data").m_name;
dataTag->line = tag.m_line;
dataTag->column = tag.m_column;
dataTag->setInherited(tag.m_inherited);
func->children.append(dataTag);
}
parseResult->children.append(func);
}
futureInterface.reportResult(TestParseResultPtr(parseResult));
return true;
}
return false;
}
void QtTestParser::init(const QStringList &filesToParse)
{
m_testCaseNames = QTestUtils::testCaseNamesForFiles(id(), filesToParse);
m_alternativeFiles = QTestUtils::alternativeFiles(id(), filesToParse);
CppParser::init(filesToParse);
}
void QtTestParser::release()
{
m_testCaseNames.clear();
m_alternativeFiles.clear();
CppParser::release();
}
bool QtTestParser::processDocument(QFutureInterface<TestParseResultPtr> futureInterface,
const QString &fileName)
{
if (!m_cppSnapshot.contains(fileName) || !selectedForBuilding(fileName))
return false;
CPlusPlus::Document::Ptr doc = m_cppSnapshot.find(fileName).value();
const QString &oldName = m_testCaseNames.value(fileName);
const QStringList &alternativeFiles = m_alternativeFiles.values(fileName);
if ((!includesQtTest(doc, m_cppSnapshot) || !qtTestLibDefined(fileName)) && oldName.isEmpty())
return false;
return handleQtTest(futureInterface, doc, m_cppSnapshot, oldName, alternativeFiles, id());
}
} // namespace Internal
} // namespace Autotest