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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0+ OR GPL-3.0 WITH Qt-GPL-exception-1.0
#include "typehierarchybuilder_test.h"
#include "cppmodelmanager.h"
#include "cpptoolstestcase.h"
#include "typehierarchybuilder.h"
#include <cplusplus/Overview.h>
#include <cplusplus/SymbolVisitor.h>
#include <utils/algorithm.h>
#include <utils/fileutils.h>
#include <QDir>
#include <QtTest>
using namespace CPlusPlus;
using CppEditor::Internal::Tests::CppTestDocument;
Q_DECLARE_METATYPE(QList<CppTestDocument>)
namespace CppEditor::Internal {
namespace {
QString toString(const TypeHierarchy &hierarchy, int indent = 0)
{
Symbol *symbol = hierarchy.symbol();
QString result = QString(indent, QLatin1Char(' '))
+ Overview().prettyName(symbol->name()) + QLatin1Char('\n');
QList<TypeHierarchy> sortedHierarchy = hierarchy.hierarchy();
Overview oo;
Utils::sort(sortedHierarchy, [&oo](const TypeHierarchy &h1, const TypeHierarchy &h2) -> bool {
return oo.prettyName(h1.symbol()->name()) < oo.prettyName(h2.symbol()->name());
});
for (const TypeHierarchy &childHierarchy : qAsConst(sortedHierarchy))
result += toString(childHierarchy, indent + 2);
return result;
}
class FindFirstClassInDocument: private SymbolVisitor
{
public:
FindFirstClassInDocument() = default;
Class *operator()(const Document::Ptr &document)
{
accept(document->globalNamespace());
return m_clazz;
}
private:
bool preVisit(Symbol *symbol) override
{
if (m_clazz)
return false;
if (Class *c = symbol->asClass()) {
m_clazz = c;
return false;
}
return true;
}
private:
Class *m_clazz = nullptr;
};
class TypeHierarchyBuilderTestCase : public CppEditor::Tests::TestCase
{
public:
TypeHierarchyBuilderTestCase(const QList<CppTestDocument> &documents,
const QString &expectedHierarchy)
{
QVERIFY(succeededSoFar());
CppEditor::Tests::TemporaryDir temporaryDir;
QVERIFY(temporaryDir.isValid());
QList<CppTestDocument> documents_ = documents;
// Write files
QSet<QString> filePaths;
for (auto &document : documents_) {
document.setBaseDirectory(temporaryDir.path());
QVERIFY(document.writeToDisk());
filePaths << document.filePath();
}
// Parse files
QVERIFY(parseFiles(filePaths));
const Snapshot snapshot = globalSnapshot();
// Get class for which to generate the hierarchy
const Document::Ptr firstDocument = snapshot.document(documents_.first().filePath());
QVERIFY(firstDocument);
QVERIFY(firstDocument->diagnosticMessages().isEmpty());
Class *clazz = FindFirstClassInDocument()(firstDocument);
QVERIFY(clazz);
// Generate and compare hierarchies
const TypeHierarchy hierarchy
= TypeHierarchyBuilder::buildDerivedTypeHierarchy(clazz, snapshot);
const QString actualHierarchy = toString(hierarchy);
// Uncomment for updating/generating reference data:
// qDebug() << actualHierarchy;
QCOMPARE(actualHierarchy, expectedHierarchy);
}
};
} // anonymous namespace
void TypeHierarchyBuilderTest::test_data()
{
QTest::addColumn<QList<CppTestDocument> >("documents");
QTest::addColumn<QString>("expectedHierarchy");
QTest::newRow("basic-single-document")
<< (QList<CppTestDocument>()
<< CppTestDocument("a.h",
"class A {};\n"
"class B : public A {};\n"
"class C1 : public B {};\n"
"class C2 : public B {};\n"
"class D : public C1 {};\n"))
<< QString::fromLatin1(
"A\n"
" B\n"
" C1\n"
" D\n"
" C2\n" );
QTest::newRow("basic-multiple-documents")
<< (QList<CppTestDocument>()
<< CppTestDocument("a.h",
"class A {};")
<< CppTestDocument("b.h",
"#include \"a.h\"\n"
"class B : public A {};")
<< CppTestDocument("c1.h",
"#include \"b.h\"\n"
"class C1 : public B {};")
<< CppTestDocument("c2.h",
"#include \"b.h\"\n"
"class C2 : public B {};")
<< CppTestDocument("d.h",
"#include \"c1.h\"\n"
"class D : public C1 {};"))
<< QString::fromLatin1(
"A\n"
" B\n"
" C1\n"
" D\n"
" C2\n"
);
}
void TypeHierarchyBuilderTest::test()
{
QFETCH(QList<CppTestDocument>, documents);
QFETCH(QString, expectedHierarchy);
TypeHierarchyBuilderTestCase(documents, expectedHierarchy);
}
} // namespace CppEditor::Internal
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