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Diffstat (limited to 'tests/auto/corelib/text/qstringview/tst_qstringview.cpp')
| -rw-r--r-- | tests/auto/corelib/text/qstringview/tst_qstringview.cpp | 682 |
1 files changed, 682 insertions, 0 deletions
diff --git a/tests/auto/corelib/text/qstringview/tst_qstringview.cpp b/tests/auto/corelib/text/qstringview/tst_qstringview.cpp new file mode 100644 index 0000000000..794f39708a --- /dev/null +++ b/tests/auto/corelib/text/qstringview/tst_qstringview.cpp @@ -0,0 +1,682 @@ +/**************************************************************************** +** +** Copyright (C) 2018 Klarälvdalens Datakonsult AB, a KDAB Group company, info@kdab.com, author Marc Mutz <marc.mutz@kdab.com> +** Contact: https://www.qt.io/licensing/ +** +** This file is part of the QtCore module of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:GPL-EXCEPT$ +** 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 +** a written agreement between you and The Qt Company. For licensing terms +** 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. +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include <QStringView> +#include <QString> +#include <QChar> +#include <QStringRef> + +#include <QTest> + +#include <string> + +template <typename T> +using CanConvert = std::is_convertible<T, QStringView>; + +Q_STATIC_ASSERT(!CanConvert<QLatin1String>::value); +Q_STATIC_ASSERT(!CanConvert<const char*>::value); +Q_STATIC_ASSERT(!CanConvert<QByteArray>::value); + +// QStringView qchar_does_not_compile() { return QStringView(QChar('a')); } +// QStringView qlatin1string_does_not_compile() { return QStringView(QLatin1String("a")); } +// QStringView const_char_star_does_not_compile() { return QStringView("a"); } +// QStringView qbytearray_does_not_compile() { return QStringView(QByteArray("a")); } + +// +// QChar +// + +Q_STATIC_ASSERT(!CanConvert<QChar>::value); + +Q_STATIC_ASSERT(CanConvert<QChar[123]>::value); + +Q_STATIC_ASSERT(CanConvert< QString >::value); +Q_STATIC_ASSERT(CanConvert<const QString >::value); +Q_STATIC_ASSERT(CanConvert< QString&>::value); +Q_STATIC_ASSERT(CanConvert<const QString&>::value); + +Q_STATIC_ASSERT(CanConvert< QStringRef >::value); +Q_STATIC_ASSERT(CanConvert<const QStringRef >::value); +Q_STATIC_ASSERT(CanConvert< QStringRef&>::value); +Q_STATIC_ASSERT(CanConvert<const QStringRef&>::value); + + +// +// ushort +// + +Q_STATIC_ASSERT(!CanConvert<ushort>::value); + +Q_STATIC_ASSERT(CanConvert<ushort[123]>::value); + +Q_STATIC_ASSERT(CanConvert< ushort*>::value); +Q_STATIC_ASSERT(CanConvert<const ushort*>::value); + + +// +// char16_t +// + +#if defined(Q_COMPILER_UNICODE_STRINGS) + +Q_STATIC_ASSERT(!CanConvert<char16_t>::value); + +Q_STATIC_ASSERT(CanConvert< char16_t*>::value); +Q_STATIC_ASSERT(CanConvert<const char16_t*>::value); + +#endif + +#if defined(Q_STDLIB_UNICODE_STRINGS) + +Q_STATIC_ASSERT(CanConvert< std::u16string >::value); +Q_STATIC_ASSERT(CanConvert<const std::u16string >::value); +Q_STATIC_ASSERT(CanConvert< std::u16string&>::value); +Q_STATIC_ASSERT(CanConvert<const std::u16string&>::value); + +#endif + + +// +// wchar_t +// + +Q_CONSTEXPR bool CanConvertFromWCharT = +#ifdef Q_OS_WIN + true +#else + false +#endif + ; + +Q_STATIC_ASSERT(!CanConvert<wchar_t>::value); + +Q_STATIC_ASSERT(CanConvert< wchar_t*>::value == CanConvertFromWCharT); +Q_STATIC_ASSERT(CanConvert<const wchar_t*>::value == CanConvertFromWCharT); + +Q_STATIC_ASSERT(CanConvert< std::wstring >::value == CanConvertFromWCharT); +Q_STATIC_ASSERT(CanConvert<const std::wstring >::value == CanConvertFromWCharT); +Q_STATIC_ASSERT(CanConvert< std::wstring&>::value == CanConvertFromWCharT); +Q_STATIC_ASSERT(CanConvert<const std::wstring&>::value == CanConvertFromWCharT); + + +class tst_QStringView : public QObject +{ + Q_OBJECT + +private Q_SLOTS: + void constExpr() const; + void basics() const; + void literals() const; + void at() const; + + void arg() const; + + void fromQString() const; + void fromQStringRef() const; + + void fromQCharStar() const + { + const QChar str[] = { 'H', 'e', 'l', 'l', 'o', ',', ' ', 'W', 'o', 'r', 'l', 'd', '!', 0 }; + fromLiteral(str); + } + + void fromUShortStar() const + { + const ushort str[] = { 'H', 'e', 'l', 'l', 'o', ',', ' ', 'W', 'o', 'r', 'l', 'd', '!', 0 }; + fromLiteral(str); + } + + void fromChar16TStar() const + { +#if defined(Q_COMPILER_UNICODE_STRINGS) + fromLiteral(u"Hello, World!"); +#else + QSKIP("This test requires C++11 char16_t support enabled in the compiler"); +#endif + } + + void fromWCharTStar() const + { +#ifdef Q_OS_WIN + fromLiteral(L"Hello, World!"); +#else + QSKIP("This is a Windows-only test"); +#endif + } + + void fromQCharRange() const + { + const QChar str[] = { 'H', 'e', 'l', 'l', 'o', ',', ' ', 'W', 'o', 'r', 'l', 'd', '!' }; + fromRange(std::begin(str), std::end(str)); + } + + void fromUShortRange() const + { + const ushort str[] = { 'H', 'e', 'l', 'l', 'o', ',', ' ', 'W', 'o', 'r', 'l', 'd', '!' }; + fromRange(std::begin(str), std::end(str)); + } + + void fromChar16TRange() const + { +#if defined(Q_COMPILER_UNICODE_STRINGS) + const char16_t str[] = { 'H', 'e', 'l', 'l', 'o', ',', ' ', 'W', 'o', 'r', 'l', 'd', '!' }; + fromRange(std::begin(str), std::end(str)); +#else + QSKIP("This test requires C++11 char16_t support enabled in the compiler"); +#endif + } + + void fromWCharTRange() const + { +#ifdef Q_OS_WIN + const wchar_t str[] = { 'H', 'e', 'l', 'l', 'o', ',', ' ', 'W', 'o', 'r', 'l', 'd', '!' }; + fromRange(std::begin(str), std::end(str)); +#else + QSKIP("This is a Windows-only test"); +#endif + } + + // std::basic_string + void fromStdStringWCharT() const + { +#ifdef Q_OS_WIN + fromStdString<wchar_t>(); +#else + QSKIP("This is a Windows-only test"); +#endif + } + void fromStdStringChar16T() const + { +#ifdef Q_STDLIB_UNICODE_STRINGS + fromStdString<char16_t>(); +#else + QSKIP("This test requires C++11 char16_t support enabled in compiler & stdlib"); +#endif + } + + void comparison(); + +private: + template <typename String> + void conversion_tests(String arg) const; + template <typename Char> + void fromLiteral(const Char *arg) const; + template <typename Char> + void fromRange(const Char *first, const Char *last) const; + template <typename Char, typename Container> + void fromContainer() const; + template <typename Char> + void fromStdString() const { fromContainer<Char, std::basic_string<Char> >(); } +}; + +void tst_QStringView::constExpr() const +{ + // compile-time checks +#ifdef Q_COMPILER_CONSTEXPR + { + constexpr QStringView sv; + Q_STATIC_ASSERT(sv.size() == 0); + Q_STATIC_ASSERT(sv.isNull()); + Q_STATIC_ASSERT(sv.empty()); + Q_STATIC_ASSERT(sv.isEmpty()); + Q_STATIC_ASSERT(sv.utf16() == nullptr); + + constexpr QStringView sv2(sv.utf16(), sv.utf16() + sv.size()); + Q_STATIC_ASSERT(sv2.isNull()); + Q_STATIC_ASSERT(sv2.empty()); + } + { + constexpr QStringView sv = QStringViewLiteral(""); + Q_STATIC_ASSERT(sv.size() == 0); + Q_STATIC_ASSERT(!sv.isNull()); + Q_STATIC_ASSERT(sv.empty()); + Q_STATIC_ASSERT(sv.isEmpty()); + Q_STATIC_ASSERT(sv.utf16() != nullptr); + + constexpr QStringView sv2(sv.utf16(), sv.utf16() + sv.size()); + Q_STATIC_ASSERT(!sv2.isNull()); + Q_STATIC_ASSERT(sv2.empty()); + } + { + constexpr QStringView sv = QStringViewLiteral("Hello"); + Q_STATIC_ASSERT(sv.size() == 5); + Q_STATIC_ASSERT(!sv.empty()); + Q_STATIC_ASSERT(!sv.isEmpty()); + Q_STATIC_ASSERT(!sv.isNull()); + Q_STATIC_ASSERT(*sv.utf16() == 'H'); + Q_STATIC_ASSERT(sv[0] == QLatin1Char('H')); + Q_STATIC_ASSERT(sv.at(0) == QLatin1Char('H')); + Q_STATIC_ASSERT(sv.front() == QLatin1Char('H')); + Q_STATIC_ASSERT(sv.first() == QLatin1Char('H')); + Q_STATIC_ASSERT(sv[4] == QLatin1Char('o')); + Q_STATIC_ASSERT(sv.at(4) == QLatin1Char('o')); + Q_STATIC_ASSERT(sv.back() == QLatin1Char('o')); + Q_STATIC_ASSERT(sv.last() == QLatin1Char('o')); + + constexpr QStringView sv2(sv.utf16(), sv.utf16() + sv.size()); + Q_STATIC_ASSERT(!sv2.isNull()); + Q_STATIC_ASSERT(!sv2.empty()); + Q_STATIC_ASSERT(sv2.size() == 5); + } +#if !defined(Q_OS_WIN) || defined(Q_COMPILER_UNICODE_STRINGS) + { + Q_STATIC_ASSERT(QStringView(u"Hello").size() == 5); + constexpr QStringView sv = u"Hello"; + Q_STATIC_ASSERT(sv.size() == 5); + Q_STATIC_ASSERT(!sv.empty()); + Q_STATIC_ASSERT(!sv.isEmpty()); + Q_STATIC_ASSERT(!sv.isNull()); + Q_STATIC_ASSERT(*sv.utf16() == 'H'); + Q_STATIC_ASSERT(sv[0] == QLatin1Char('H')); + Q_STATIC_ASSERT(sv.at(0) == QLatin1Char('H')); + Q_STATIC_ASSERT(sv.front() == QLatin1Char('H')); + Q_STATIC_ASSERT(sv.first() == QLatin1Char('H')); + Q_STATIC_ASSERT(sv[4] == QLatin1Char('o')); + Q_STATIC_ASSERT(sv.at(4) == QLatin1Char('o')); + Q_STATIC_ASSERT(sv.back() == QLatin1Char('o')); + Q_STATIC_ASSERT(sv.last() == QLatin1Char('o')); + + constexpr QStringView sv2(sv.utf16(), sv.utf16() + sv.size()); + Q_STATIC_ASSERT(!sv2.isNull()); + Q_STATIC_ASSERT(!sv2.empty()); + Q_STATIC_ASSERT(sv2.size() == 5); + + constexpr char16_t *null = nullptr; + constexpr QStringView sv3(null); + Q_STATIC_ASSERT(sv3.isNull()); + Q_STATIC_ASSERT(sv3.isEmpty()); + Q_STATIC_ASSERT(sv3.size() == 0); + } +#else // storage_type is wchar_t + { + Q_STATIC_ASSERT(QStringView(L"Hello").size() == 5); + constexpr QStringView sv = L"Hello"; + Q_STATIC_ASSERT(sv.size() == 5); + Q_STATIC_ASSERT(!sv.empty()); + Q_STATIC_ASSERT(!sv.isEmpty()); + Q_STATIC_ASSERT(!sv.isNull()); + Q_STATIC_ASSERT(*sv.utf16() == 'H'); + Q_STATIC_ASSERT(sv[0] == QLatin1Char('H')); + Q_STATIC_ASSERT(sv.at(0) == QLatin1Char('H')); + Q_STATIC_ASSERT(sv.front() == QLatin1Char('H')); + Q_STATIC_ASSERT(sv.first() == QLatin1Char('H')); + Q_STATIC_ASSERT(sv[4] == QLatin1Char('o')); + Q_STATIC_ASSERT(sv.at(4) == QLatin1Char('o')); + Q_STATIC_ASSERT(sv.back() == QLatin1Char('o')); + Q_STATIC_ASSERT(sv.last() == QLatin1Char('o')); + + constexpr QStringView sv2(sv.utf16(), sv.utf16() + sv.size()); + Q_STATIC_ASSERT(!sv2.isNull()); + Q_STATIC_ASSERT(!sv2.empty()); + Q_STATIC_ASSERT(sv2.size() == 5); + + constexpr wchar_t *null = nullptr; + constexpr QStringView sv3(null); + Q_STATIC_ASSERT(sv3.isNull()); + Q_STATIC_ASSERT(sv3.isEmpty()); + Q_STATIC_ASSERT(sv3.size() == 0); + } +#endif +#endif +} + +void tst_QStringView::basics() const +{ + QStringView sv1; + + // a default-constructed QStringView is null: + QVERIFY(sv1.isNull()); + // which implies it's empty(); + QVERIFY(sv1.isEmpty()); + + QStringView sv2; + + QVERIFY(sv2 == sv1); + QVERIFY(!(sv2 != sv1)); +} + +void tst_QStringView::literals() const +{ +#if !defined(Q_OS_WIN) || defined(Q_COMPILER_UNICODE_STRINGS) + const char16_t hello[] = u"Hello"; + const char16_t longhello[] = + u"Hello World. This is a much longer message, to exercise qustrlen."; + const char16_t withnull[] = u"a\0zzz"; +#else // storage_type is wchar_t + const wchar_t hello[] = L"Hello"; + const wchar_t longhello[] = + L"Hello World. This is a much longer message, to exercise qustrlen."; + const wchar_t withnull[] = L"a\0zzz"; +#endif + Q_STATIC_ASSERT(sizeof(longhello) >= 16); + + QCOMPARE(QStringView(hello).size(), 5); + QCOMPARE(QStringView(hello + 0).size(), 5); // forces decay to pointer + QStringView sv = hello; + QCOMPARE(sv.size(), 5); + QVERIFY(!sv.empty()); + QVERIFY(!sv.isEmpty()); + QVERIFY(!sv.isNull()); + QCOMPARE(*sv.utf16(), 'H'); + QCOMPARE(sv[0], QLatin1Char('H')); + QCOMPARE(sv.at(0), QLatin1Char('H')); + QCOMPARE(sv.front(), QLatin1Char('H')); + QCOMPARE(sv.first(), QLatin1Char('H')); + QCOMPARE(sv[4], QLatin1Char('o')); + QCOMPARE(sv.at(4), QLatin1Char('o')); + QCOMPARE(sv.back(), QLatin1Char('o')); + QCOMPARE(sv.last(), QLatin1Char('o')); + + QStringView sv2(sv.utf16(), sv.utf16() + sv.size()); + QVERIFY(!sv2.isNull()); + QVERIFY(!sv2.empty()); + QCOMPARE(sv2.size(), 5); + + QStringView sv3(longhello); + QCOMPARE(size_t(sv3.size()), sizeof(longhello)/sizeof(longhello[0]) - 1); + QCOMPARE(sv3.last(), QLatin1Char('.')); + sv3 = longhello; + QCOMPARE(size_t(sv3.size()), sizeof(longhello)/sizeof(longhello[0]) - 1); + + for (int i = 0; i < sv3.size(); ++i) { + QStringView sv4(longhello + i); + QCOMPARE(size_t(sv4.size()), sizeof(longhello)/sizeof(longhello[0]) - 1 - i); + QCOMPARE(sv4.last(), QLatin1Char('.')); + sv4 = longhello + i; + QCOMPARE(size_t(sv4.size()), sizeof(longhello)/sizeof(longhello[0]) - 1 - i); + } + + // these are different results + QCOMPARE(size_t(QStringView(withnull).size()), sizeof(withnull)/sizeof(withnull[0]) - 1); + QCOMPARE(QStringView(withnull + 0).size(), 1); +} + +void tst_QStringView::at() const +{ + QString hello("Hello"); + QStringView sv(hello); + QCOMPARE(sv.at(0), QChar('H')); QCOMPARE(sv[0], QChar('H')); + QCOMPARE(sv.at(1), QChar('e')); QCOMPARE(sv[1], QChar('e')); + QCOMPARE(sv.at(2), QChar('l')); QCOMPARE(sv[2], QChar('l')); + QCOMPARE(sv.at(3), QChar('l')); QCOMPARE(sv[3], QChar('l')); + QCOMPARE(sv.at(4), QChar('o')); QCOMPARE(sv[4], QChar('o')); +} + +void tst_QStringView::arg() const +{ +#define CHECK1(pattern, arg1, expected) \ + do { \ + auto p = QStringViewLiteral(pattern); \ + QCOMPARE(p.arg(QLatin1String(arg1)), expected); \ + QCOMPARE(p.arg(QStringViewLiteral(arg1)), expected); \ + QCOMPARE(p.arg(QStringLiteral(arg1)), expected); \ + QCOMPARE(p.arg(QString(QLatin1String(arg1))), expected); \ + } while (false) \ + /*end*/ +#define CHECK2(pattern, arg1, arg2, expected) \ + do { \ + auto p = QStringViewLiteral(pattern); \ + QCOMPARE(p.arg(QLatin1String(arg1), QLatin1String(arg2)), expected); \ + QCOMPARE(p.arg(QStringViewLiteral(arg1), QLatin1String(arg2)), expected); \ + QCOMPARE(p.arg(QLatin1String(arg1), QStringViewLiteral(arg2)), expected); \ + QCOMPARE(p.arg(QStringViewLiteral(arg1), QStringViewLiteral(arg2)), expected); \ + } while (false) \ + /*end*/ + + CHECK1("", "World", ""); + CHECK1("%1", "World", "World"); + CHECK1("!%1?", "World", "!World?"); + CHECK1("%1%1", "World", "WorldWorld"); + CHECK1("%1%2", "World", "World%2"); + CHECK1("%2%1", "World", "%2World"); + + CHECK2("", "Hello", "World", ""); + CHECK2("%1", "Hello", "World", "Hello"); + CHECK2("!%1, %2?", "Hello", "World", "!Hello, World?"); + CHECK2("%1%1", "Hello", "World", "HelloHello"); + CHECK2("%1%2", "Hello", "World", "HelloWorld"); + CHECK2("%2%1", "Hello", "World", "WorldHello"); + +#undef CHECK2 +#undef CHECK1 + + QCOMPARE(QStringViewLiteral(" %2 %2 %1 %3 ").arg(QLatin1Char('c'), QChar::CarriageReturn, u'C'), " \r \r c C "); +} + +void tst_QStringView::fromQString() const +{ + QString null; + QString empty = ""; + + QVERIFY( QStringView(null).isNull()); + QVERIFY( QStringView(null).isEmpty()); + QVERIFY( QStringView(empty).isEmpty()); + QVERIFY(!QStringView(empty).isNull()); + + conversion_tests(QString("Hello World!")); +} + +void tst_QStringView::fromQStringRef() const +{ + QStringRef null; + QString emptyS = ""; + QStringRef empty(&emptyS); + + QVERIFY( QStringView(null).isNull()); + QVERIFY( QStringView(null).isEmpty()); + QVERIFY( QStringView(empty).isEmpty()); + QVERIFY(!QStringView(empty).isNull()); + + conversion_tests(QString("Hello World!").midRef(6)); +} + +template <typename Char> +void tst_QStringView::fromLiteral(const Char *arg) const +{ + const Char *null = nullptr; + const Char empty[] = { 0 }; + + QCOMPARE(QStringView(null).size(), qsizetype(0)); + QCOMPARE(QStringView(null).data(), nullptr); + QCOMPARE(QStringView(empty).size(), qsizetype(0)); + QCOMPARE(static_cast<const void*>(QStringView(empty).data()), + static_cast<const void*>(empty)); + + QVERIFY( QStringView(null).isNull()); + QVERIFY( QStringView(null).isEmpty()); + QVERIFY( QStringView(empty).isEmpty()); + QVERIFY(!QStringView(empty).isNull()); + + conversion_tests(arg); +} + +template <typename Char> +void tst_QStringView::fromRange(const Char *first, const Char *last) const +{ + const Char *null = nullptr; + QCOMPARE(QStringView(null, null).size(), 0); + QCOMPARE(QStringView(null, null).data(), nullptr); + QCOMPARE(QStringView(first, first).size(), 0); + QCOMPARE(static_cast<const void*>(QStringView(first, first).data()), + static_cast<const void*>(first)); + + const auto sv = QStringView(first, last); + QCOMPARE(sv.size(), last - first); + QCOMPARE(static_cast<const void*>(sv.data()), + static_cast<const void*>(first)); + + // can't call conversion_tests() here, as it requires a single object +} + +template <typename Char, typename Container> +void tst_QStringView::fromContainer() const +{ + const QString s = "Hello World!"; + + Container c; + // unspecified whether empty containers make null QStringViews + QVERIFY(QStringView(c).isEmpty()); + + QCOMPARE(sizeof(Char), sizeof(QChar)); + + const auto *data = reinterpret_cast<const Char *>(s.utf16()); + std::copy(data, data + s.size(), std::back_inserter(c)); + conversion_tests(std::move(c)); +} + +namespace help { +template <typename T> +size_t size(const T &t) { return size_t(t.size()); } +template <typename T> +size_t size(const T *t) +{ + size_t result = 0; + if (t) { + while (*t++) + ++result; + } + return result; +} +size_t size(const QChar *t) +{ + size_t result = 0; + if (t) { + while (!t++->isNull()) + ++result; + } + return result; +} + +template <typename T> +typename T::const_iterator cbegin(const T &t) { return t.cbegin(); } +template <typename T> +const T * cbegin(const T *t) { return t; } + +template <typename T> +typename T::const_iterator cend(const T &t) { return t.cend(); } +template <typename T> +const T * cend(const T *t) { return t + size(t); } + +template <typename T> +typename T::const_reverse_iterator crbegin(const T &t) { return t.crbegin(); } +template <typename T> +std::reverse_iterator<const T*> crbegin(const T *t) { return std::reverse_iterator<const T*>(cend(t)); } + +template <typename T> +typename T::const_reverse_iterator crend(const T &t) { return t.crend(); } +template <typename T> +std::reverse_iterator<const T*> crend(const T *t) { return std::reverse_iterator<const T*>(cbegin(t)); } + +} // namespace help + +template <typename String> +void tst_QStringView::conversion_tests(String string) const +{ + // copy-construct: + { + QStringView sv = string; + + QCOMPARE(help::size(sv), help::size(string)); + + // check iterators: + + QVERIFY(std::equal(help::cbegin(string), help::cend(string), + QT_MAKE_CHECKED_ARRAY_ITERATOR(sv.cbegin(), sv.size()))); + QVERIFY(std::equal(help::cbegin(string), help::cend(string), + QT_MAKE_CHECKED_ARRAY_ITERATOR(sv.begin(), sv.size()))); + QVERIFY(std::equal(help::crbegin(string), help::crend(string), + sv.crbegin())); + QVERIFY(std::equal(help::crbegin(string), help::crend(string), + sv.rbegin())); + + QCOMPARE(sv, string); + } + + QStringView sv; + + // copy-assign: + { + sv = string; + + QCOMPARE(help::size(sv), help::size(string)); + + // check relational operators: + + QCOMPARE(sv, string); + QCOMPARE(string, sv); + + QVERIFY(!(sv != string)); + QVERIFY(!(string != sv)); + + QVERIFY(!(sv < string)); + QVERIFY(sv <= string); + QVERIFY(!(sv > string)); + QVERIFY(sv >= string); + + QVERIFY(!(string < sv)); + QVERIFY(string <= sv); + QVERIFY(!(string > sv)); + QVERIFY(string >= sv); + } + + // copy-construct from rvalue (QStringView never assumes ownership): + { + QStringView sv2 = std::move(string); + QCOMPARE(sv2, sv); + QCOMPARE(sv2, string); + } + + // copy-assign from rvalue (QStringView never assumes ownership): + { + QStringView sv2; + sv2 = std::move(string); + QCOMPARE(sv2, sv); + QCOMPARE(sv2, string); + } +} + +void tst_QStringView::comparison() +{ + const QStringView aa = QStringViewLiteral("aa"); + const QStringView upperAa = QStringViewLiteral("AA"); + const QStringView bb = QStringViewLiteral("bb"); + + QVERIFY(aa == aa); + QVERIFY(aa != bb); + QVERIFY(aa < bb); + QVERIFY(bb > aa); + + QCOMPARE(aa.compare(aa), 0); + QVERIFY(aa.compare(upperAa) != 0); + QCOMPARE(aa.compare(upperAa, Qt::CaseInsensitive), 0); + QVERIFY(aa.compare(bb) < 0); + QVERIFY(bb.compare(aa) > 0); +} + +QTEST_APPLESS_MAIN(tst_QStringView) +#include "tst_qstringview.moc" |