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/*
SPDX-FileCopyrightText: 2016 Milian Wolff <mail@milianw.de>
SPDX-License-Identifier: LGPL-2.0-or-later
*/
#include "test_stringhelpers.h"
#include <QTest>
#include <QStandardPaths>
#include <language/duchain/stringhelpers.h>
#include <cstring>
QTEST_MAIN(TestStringHelpers)
using namespace KDevelop;
void TestStringHelpers::initTestCase()
{
QStandardPaths::setTestModeEnabled(true);
}
void TestStringHelpers::testFormatComment_data()
{
QTest::addColumn<QByteArray>("input");
QTest::addColumn<QByteArray>("output");
QTest::newRow("cpp-style") << QByteArrayLiteral(
"// foo\n"
"// bar"
) << QByteArrayLiteral("foo\n bar");
QTest::newRow("doxy-cpp-style") << QByteArrayLiteral(
"/// foo\n"
"/// bar"
) << QByteArrayLiteral("foo\n bar");
QTest::newRow("doxy-cpp-excl-style") << QByteArrayLiteral(
"//! foo\n"
"//! bar"
) << QByteArrayLiteral("foo\n bar");
QTest::newRow("doxy-cpp-singleline-style") << QByteArrayLiteral("///< foo") << QByteArrayLiteral("foo");
QTest::newRow("doxy-cpp-excl-singleline-style") << QByteArrayLiteral("//!< foo") << QByteArrayLiteral("foo");
QTest::newRow("c-style") << QByteArrayLiteral(
"/*\n"
" foo\n"
" bar\n*/"
) << QByteArrayLiteral("foo\nbar");
QTest::newRow("doxy-c-style") << QByteArrayLiteral(
"/**\n"
" * foo\n"
" * bar\n */"
) << QByteArrayLiteral("foo\n bar");
QTest::newRow("doxy-c-style2") << QByteArrayLiteral(
"/**\n"
" * foo\n"
" * bar\n **/"
) << QByteArrayLiteral("foo\n bar");
QTest::newRow("real multiline") << QByteArrayLiteral(
"/**\n"
" * This is a real comment of some imaginary code.\n"
" *\n"
" * @param foo bar\n"
" * @return meh\n"
" */\n"
)
<< QByteArrayLiteral("This is a real comment of some imaginary code.\n\n @param foo bar\n @return meh");
QTest::newRow("doxy-qt-style-after-member") << QByteArrayLiteral(
"/*!< line1\n"
"line2 */"
) << QByteArrayLiteral("line1\nline2");
QTest::newRow("doxy-c-style-after-member") << QByteArrayLiteral(
"/**< line1\n"
"line2 */"
) << QByteArrayLiteral("line1\nline2");
QTest::newRow("doxy-cpp-style-after-member") << QByteArrayLiteral(
"//!< line1\n"
"//!< line2"
) << QByteArrayLiteral("line1\n line2");
QTest::newRow("doxy-cpp-style-after-member2") << QByteArrayLiteral(
"/// line1\n"
"/// < line2"
) << QByteArrayLiteral("line1\n < line2");
QTest::newRow("doxy-qt-style-before-member") << QByteArrayLiteral(
"/*! line1\n"
"line2 */"
) << QByteArrayLiteral("line1\nline2");
QTest::newRow("doxy-qt-style-before-member2") << QByteArrayLiteral(
"/*! line1\n"
" * *line2* */"
) << QByteArrayLiteral("line1\n *line2*");
QTest::newRow("doxy-cpp-style-before-member") << QByteArrayLiteral(
"//! line1\n"
"//! line2"
) << QByteArrayLiteral("line1\n line2");
}
void TestStringHelpers::testFormatComment()
{
QFETCH(QByteArray, input);
QFETCH(QByteArray, output);
QCOMPARE(formatComment(input), output);
}
void TestStringHelpers::benchFormatComment()
{
QBENCHMARK {
formatComment(QByteArrayLiteral(
"/**\n"
" * This is a real comment of some imaginary code.\n"
" *\n"
" * @param foo bar\n"
" * @return meh\n"
" */\n"
));
}
}
void TestStringHelpers::testParamIterator_data()
{
QTest::addColumn<QString>("parens");
QTest::addColumn<QString>("source");
QTest::addColumn<QStringList>("params");
QTest::addColumn<int>("endPosition");
auto addGeneralTest = [](const QString& parens, const QString& source, const QStringList& params,
int endPosition = -1) {
QTest::addRow("%s", qPrintable(source))
<< parens << source << params << (endPosition == -1 ? source.size() : endPosition);
};
auto addTest = [addGeneralTest](const QString& source, const QStringList& params, int endPosition = -1) {
addGeneralTest("<>:", source, params, endPosition);
};
auto addMacroTest = [addGeneralTest](const QString& source, const QStringList& params, int endPosition = -1) {
addGeneralTest("()", source, params, endPosition);
};
addTest("Empty", {});
addTest("Foo<T1, T2>", {"T1", "T2"});
addTest("operator<", {});
// Such strings are passed to ParamIterator() when an Identifier is constructed from a template argument inside the
// call to Visitor::makeType() in Visitor::createClassTemplateSpecializationType(). For example, the following valid
// C++ code `K< &operator<< <S> > k;` passes the string "&operator<<<S>" to ParamIterator().
addTest("operator< <QString>", {"QString"});
addTest("operator<<<KDevVarLengthArray, Path >", {"KDevVarLengthArray", "Path"});
addTest("operator<=>< QRegularExpression,IndexedString*,char\t>", {"QRegularExpression", "IndexedString*", "char"});
// The valid C++ code `C<decltype(A::f<int>)> c;` passes the string "decltype(A::f<int>)" to ParamIterator().
addTest("decltype(f<int>)", {});
addTest("decltype(A::f)", {});
addTest("decltype(A::f<int>)", {});
addTest("decltype(N::operator< <N::String>)", {});
addTest("__not_overloaded2<_Tp, foo<bar>, __void_t<decltype(std::declval<_Tp>().operator<(std::declval<_Up>()))>>",
{"_Tp", "foo<bar>", "__void_t<decltype(std::declval<_Tp>().operator<(std::declval<_Up>()))>"});
addTest("__not_overloaded2<_Tp, foo<bar>, __void_t<decltype(std::declval<_Tp>().operator>(std::declval<_Up>()))>>",
{"_Tp", "foo<bar>", "__void_t<decltype(std::declval<_Tp>().operator>(std::declval<_Up>()))>"});
addTest("__not_overloaded2<_Tp, foo<bar>, __void_t<decltype(std::declval<_Tp>().operator>=(std::declval<_Up>()))>>",
{"_Tp", "foo<bar>", "__void_t<decltype(std::declval<_Tp>().operator>=(std::declval<_Up>()))>"});
addTest("__not_overloaded2<_Tp, foo<bar>, __void_t<decltype(std::declval<_Tp>().operator<=(std::declval<_Up>()))>>",
{"_Tp", "foo<bar>", "__void_t<decltype(std::declval<_Tp>().operator<=(std::declval<_Up>()))>"});
addTest("__not_overloaded2<_Tp, foo<bar>, __void_t<decltype(std::declval<_Tp>().operator>>(std::declval<_Up>()))>>",
{"_Tp", "foo<bar>", "__void_t<decltype(std::declval<_Tp>().operator>>(std::declval<_Up>()))>"});
addTest("__not_overloaded2<_Tp, foo<bar>, __void_t<decltype(std::declval<_Tp>().operator<<(std::declval<_Up>()))>>",
{"_Tp", "foo<bar>", "__void_t<decltype(std::declval<_Tp>().operator<<(std::declval<_Up>()))>"});
addTest("__not_overloaded2<_Tp, foo<bar>, __void_t<decltype(std::declval<_Tp>().operator<=>(std::declval<_Up>()))>>",
{"_Tp", "foo<bar>", "__void_t<decltype(std::declval<_Tp>().operator<=>(std::declval<_Up>()))>"});
addTest("__not_overloaded2<_Tp, foo<bar>, __void_t<decltype(std::declval<_Tp>().operator->(std::declval<_Up>()))>>",
{"_Tp", "foo<bar>", "__void_t<decltype(std::declval<_Tp>().operator->(std::declval<_Up>()))>"});
addTest("A<\">\\\">\">", {"\">\\\">\""});
addTest("A<'>'>", {"'>'"});
addTest("myoperator<anoperator<anotheroperator>, my_operator>", {"anoperator<anotheroperator>", "my_operator"});
// c++17 operator<=
addTest("Y<decltype(&X::operator<=), &X::operator<=>", {"decltype(&X::operator<=)", "&X::operator<="});
// c++20 operator<=>
addTest("Y<decltype(&X::operator<=>), &X::operator<=>>", {"decltype(&X::operator<=>)", "&X::operator<=>"});
addTest("Y<decltype(&X::operator->), &X::operator->>", {"decltype(&X::operator->)", "&X::operator->"});
addTest("Y<decltype(&X::operator->), Z<&X::operator->>>", {"decltype(&X::operator->)", "Z<&X::operator->>"});
addTest("Y<decltype(&X::operator--), &X::operator-->", {"decltype(&X::operator--)", "&X::operator--"});
addTest("Y<decltype(&X::operator--), Z<&X::operator-->>", {"decltype(&X::operator--)", "Z<&X::operator-->"});
// c++17 operator<=
addTest("Y<decltype(&X::operator<=), Z<&X::operator<=>>", {"decltype(&X::operator<=)", "Z<&X::operator<=>"});
// c++20 operator<=>
addTest("Y<decltype(&X::operator<=>), Z<&X::operator<=>>>", {"decltype(&X::operator<=>)", "Z<&X::operator<=>>"});
// NOTE: the "bogus" identifiers below are invalid but shouldn't trigger UB, so the tests verify that we get
// _something_ (even if it's wrong).
addTest("bogus<_Tp, _Up, invalid<decltype(<=(std::declval<_Tp>(), std::declval<_Up>()))>>",
{"_Tp", "_Up", "invalid<decltype(<=(std::declval<_Tp>(), std::declval<_Up>()))>"});
addTest("bogus<_Tp, _Up, invalid<<=(std::declval<_Tp>(), std::declval<_Up>())>>",
{"_Tp", "_Up", "invalid<<=(std::declval<_Tp>(), std::declval<_Up>())>>"});
addTest("hardToParse<A<B>", {"A<B"});
addTest("hardToParse<(A<B)>", {"(A<B)"});
addTest("hardToParse<(A>B)>", {"(A>B)"});
addTest("hardToParse<Foo<(A<B)>>", {"Foo<(A<B)>"});
addTest("hardToParse<Foo<(A>B)>>", {"Foo<(A>B)>"});
// Such zero/empty tparam strings are actually passed to ParamIterator() while libstdc++ headers are parsed.
addTest("_Index_tuple<>", {});
addTest("const __shared_count< \t>", {});
addTest("_Rb_tree_impl<_Key_compare, >", {"_Key_compare", ""});
addTest("__hash_enum<_Tp,\t \t>", {"_Tp", ""});
addTest("__uniq_ptr_data<_Tp, _Dp, , >", {"_Tp", "_Dp", "", ""});
const auto addSpacedOperatorTest = [addTest](const QString& op) {
const auto tArg1 = QStringLiteral("x %1 y").arg(op);
const auto tArg2 = QStringLiteral("Foo<%1>").arg(tArg1);
for (const auto& templateArgument : {tArg1, tArg2}) {
addTest(QStringLiteral("spaced<%1>").arg(templateArgument), {templateArgument});
}
};
addSpacedOperatorTest("<");
addSpacedOperatorTest(">");
addSpacedOperatorTest("<=");
addSpacedOperatorTest(">=");
addSpacedOperatorTest("<<");
addSpacedOperatorTest(">>");
addSpacedOperatorTest("<<=");
addSpacedOperatorTest(">>=");
addSpacedOperatorTest("<=>");
addSpacedOperatorTest("->");
// -> must be recognized even when not surrounded with spaces
addTest("arrow<u->v>", {"u->v"});
addTest("arrow<Foo<u->v>>", {"Foo<u->v>"});
addTest("X::Y<Z>", {}, 1);
addTest("X<Z::C>", {"Z::C"});
addMacroTest("Q_UNIMPLEMENTED() qWarning(\"Unimplemented code.\")", {}, std::strlen("Q_UNIMPLEMENTED()"));
addMacroTest("Q_FALLTHROUGH( ) [[clang::fallthrough]]", {}, std::strlen("Q_FALLTHROUGH( )"));
addMacroTest("( /*a)b*/ x , /*,*/y,z )", {"/*a)b*/ x", "/*,*/y", "z"});
}
void TestStringHelpers::testParamIterator()
{
QFETCH(QString, parens);
QFETCH(QString, source);
QFETCH(QStringList, params);
QFETCH(int, endPosition);
auto it = KDevelop::ParamIterator(parens, source);
QEXPECT_FAIL("hardToParse<A<B>", "quasi impossible to parse without semantic knowledge of the types", Abort);
int i = 0;
while (!params.isEmpty()) {
QVERIFY(it);
if (i == 1) {
QEXPECT_FAIL("Y<decltype(&X::operator<=), &X::operator<=>", "clang triggers warning for this C++17 code, due to C++20 spaceship op", Continue);
QEXPECT_FAIL("Y<decltype(&X::operator<=), Z<&X::operator<=>>",
"clang triggers warning for this C++17 code, due to C++20 spaceship op", Continue);
}
QCOMPARE(*it, params.takeFirst());
++it;
++i;
}
QVERIFY(!it);
QCOMPARE(it.position(), endPosition);
}
#include "moc_test_stringhelpers.cpp"
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