diff options
Diffstat (limited to 'tests/auto/corelib/text/qstringbuilder')
-rw-r--r-- | tests/auto/corelib/text/qstringbuilder/qstringbuilder1/stringbuilder.cpp | 149 |
1 files changed, 149 insertions, 0 deletions
diff --git a/tests/auto/corelib/text/qstringbuilder/qstringbuilder1/stringbuilder.cpp b/tests/auto/corelib/text/qstringbuilder/qstringbuilder1/stringbuilder.cpp index a547205460..06dc1ec5a5 100644 --- a/tests/auto/corelib/text/qstringbuilder/qstringbuilder1/stringbuilder.cpp +++ b/tests/auto/corelib/text/qstringbuilder/qstringbuilder1/stringbuilder.cpp @@ -98,6 +98,152 @@ void checkNullVsEmpty(const String &empty) QVERIFY(result.isNull()); } +namespace CheckAuto { +// T is cvref-qualified, using universal reference deduction rules. +template <typename T> struct Helper; + +// These specializations forward to the non-const ones, and add const on top. +template <typename T> struct Helper<const T> +{ + static const T create() { return Helper<T>::create(); } + static const T createNull() { return Helper<T>::createNull(); } +}; +template <typename T> struct Helper<const T &> +{ + static const T &create() { return Helper<T &>::create(); } + static const T &createNull() { return Helper<T &>::createNull(); } +}; + +template <> struct Helper<QString> +{ + static QString create() { return QString::fromUtf8("QString rvalue"); } + static QString createNull() { return QString(); } +}; + +template <> struct Helper<QString &> +{ + static QString &create() { static QString s = QString::fromUtf8("QString lvalue"); return s; } + static QString &createNull() { static QString s; return s; } +}; + +template <> struct Helper<QStringView> +{ + static QStringView create() { return QStringView(u"QStringView rvalue"); } + static QStringView createNull() { return QStringView(); } +}; + +template <> struct Helper<QStringView &> +{ + static QStringView &create() { static QStringView s = u"QStringView lvalue"; return s; } + static QStringView &createNull() { static QStringView s; return s; } +}; + +template <> struct Helper<QByteArray> +{ + static QByteArray create() { return QByteArray("QByteArray rvalue"); } + static QByteArray createNull() { return QByteArray(); } +}; + +template <> struct Helper<QByteArray &> +{ + static QByteArray &create() { static QByteArray ba = QByteArray("QByteArray lvalue"); return ba; } + static QByteArray &createNull() { static QByteArray ba; return ba; } +}; + +template <> struct Helper<QByteArrayView> +{ + static QByteArrayView create() { return QByteArrayView("QByteArrayView rvalue"); } + static QByteArrayView createNull() { return QByteArrayView(); } +}; + +template <> struct Helper<QByteArrayView &> +{ + static QByteArrayView &create() { static QByteArrayView ba = "QByteArrayView lvalue"; return ba; } + static QByteArrayView &createNull() { static QByteArrayView ba; return ba; } +}; + +template <> struct Helper<const char *> +{ + static const char *create() { return "const char * rvalue"; } + static const char *createNull() { return ""; } +}; + +template <> struct Helper<const char *&> +{ + static const char *&create() { static const char *s = "const char * lvalue"; return s; } + static const char *&createNull() { static const char *s = ""; return s; } +}; + +template <typename String1, typename String2, typename Result> +void checkAutoImpl3() +{ + { + auto result = Helper<String1>::create() P Helper<String2>::create(); + Result expected = result; + QCOMPARE(result, expected); + } + { + auto result = Helper<String2>::create() P Helper<String1>::create(); + Result expected = result; + QCOMPARE(result, expected); + } + { + auto result = Helper<String1>::create() P Helper<String2>::create() P Helper<String1>::create(); + Result expected = result; + QCOMPARE(result, expected); + } + { + auto result = Helper<String2>::create() P Helper<String1>::create() P Helper<String2>::create(); + Result expected = result; + QCOMPARE(result, expected); + } + { + auto result = Helper<String1>::createNull() P Helper<String2>::create(); + Result expected = result; + QCOMPARE(result, expected); + } + { + auto result = Helper<String1>::createNull() P Helper<String2>::createNull(); + Result expected = result; + QCOMPARE(result, expected); + } +} + +template <typename String1, typename String2, typename Result> +void checkAutoImpl2() +{ + checkAutoImpl3<String1 , String2 , Result>(); + checkAutoImpl3<String1 &, String2 , Result>(); + checkAutoImpl3<String1 , String2 &, Result>(); + checkAutoImpl3<String1 &, String2 &, Result>(); +} + +template <typename String1, typename String2, typename Result> +void checkAutoImpl() +{ + checkAutoImpl2< String1, String2, Result>(); + checkAutoImpl2<const String1, String2, Result>(); + checkAutoImpl2< String1, const String2, Result>(); + checkAutoImpl2<const String1, const String2, Result>(); +} + +} // namespace CheckAuto + +void checkAuto() +{ + CheckAuto::checkAutoImpl<QString, QString, QString>(); + CheckAuto::checkAutoImpl<QString, QStringView, QString>(); + + CheckAuto::checkAutoImpl<QByteArray, QByteArray, QByteArray>(); + CheckAuto::checkAutoImpl<QByteArray, const char *, QByteArray>(); + CheckAuto::checkAutoImpl<QByteArray, QByteArrayView, QByteArray>(); + +#ifndef QT_NO_CAST_FROM_ASCII + CheckAuto::checkAutoImpl<QString, const char *, QString>(); + CheckAuto::checkAutoImpl<QString, QByteArray, QString>(); +#endif +} + void runScenario() { // this code is latin1. TODO: replace it with the utf8 block below, once @@ -381,6 +527,9 @@ void runScenario() checkNullVsEmpty(QStringLiteral("")); checkNullVsEmpty(QByteArrayLiteral("")); + // auto + checkAuto(); + checkItWorksWithFreeSpaceAtBegin(QByteArray(UTF8_LITERAL), "1234"); if (QTest::currentTestFailed()) return; |