qt/qtbase
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Add tests for QUtf8StringView

Browse Source 
This is a port from QLatin1StringView to QUtf8StringView.

Some functions of QL1SV have no counterpart to QU8SV:
* first() and last()
* count()
* indexOf()
* toUtf8()
that were not included.

Tests for user defined literals have also been removed. Some tests were
extended for utf8 string literals u8"".

Merge conflict resolution for 6.8: Remove test for arg().

Pick-to: 6.5
Task-number: QTBUG-132097
Change-Id: I0ceee00a7457360b430d13c3199f642f8e4c0036
Reviewed-by: Mate Barany <mate.barany@qt.io>
(cherry picked from commit 9319f790604c89acafdefd8c7dd97f90bcc9a37b)
(cherry picked from commit c67ba77d347866906e97234e276bd9be7a427c3a)
This commit is contained in:
Matthias Rauter
2025-05-15 10:59:14 +00:00
parent c2b41f332b
commit 2fb697d9c6
4 changed files with 385 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files
tests/auto/corelib/text/CMakeLists.txt
+1
View File
@@ -32,4 +32,5 @@ add_subdirectory(qstringtokenizer)
add_subdirectory(qstringview)
add_subdirectory(qtextboundaryfinder)
add_subdirectory(qunicodetools)
add_subdirectory(qutf8stringview)
add_subdirectory(qlocale)
tests/auto/corelib/text/qutf8stringview/.gitignore
+1
View File
@@ -0,0 +1 @@
tst_qutf8stringview
tests/auto/corelib/text/qutf8stringview/CMakeLists.txt
+20
View File
@@ -0,0 +1,20 @@
# Copyright (C) 2025 The Qt Company Ltd.
# SPDX-License-Identifier: BSD-3-Clause
#####################################################################
## tst_qutf8stringview Test:
#####################################################################
if(NOT QT_BUILD_STANDALONE_TESTS AND NOT QT_BUILDING_QT)
cmake_minimum_required(VERSION 3.16)
project(tst_qutf8stringview LANGUAGES CXX)
find_package(Qt6BuildInternals REQUIRED COMPONENTS STANDALONE_TEST)
endif()
qt_internal_add_test(tst_qutf8stringview
SOURCES
tst_qutf8stringview.cpp
)
## Scopes:
#####################################################################
tests/auto/corelib/text/qutf8stringview/tst_qutf8stringview.cpp
+363
View File
@@ -0,0 +1,363 @@
// Copyright (C) 2015 Klarälvdalens Datakonsult AB, a KDAB Group company, info@kdab.com, author Marc Mutz <marc.mutz@kdab.com>
// Copyright (C) 2025 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
#include <QtTest/QTest>
#include <QtCore/QString>
#ifdef __cpp_char8_t
# define ONLY_IF_CHAR_8_T(expr) expr
#else
# define ONLY_IF_CHAR_8_T(expr) \
QSKIP("This test requires C++20 char8_t support enabled in the compiler.")
#endif
// QTBUG-112746
namespace {
extern const char string_array[];
static void from_array_of_unknown_size()
{
auto sv = QUtf8StringView{string_array};
QCOMPARE(sv.size(), 3);
}
const char string_array[] = "abc\0def";
#ifdef __cpp_char8_t
extern const char8_t string_array_8t[];
static void from_array_of_unknown_size_8t()
{
auto sv = QUtf8StringView{string_array_8t};
QCOMPARE(sv.size(), 3);
}
const char8_t string_array_8t[] = u8"abc\0def";
#endif
} // unnamed namespace
template <typename T>
const void *as_const_void_star(T *p) { return p; }
class tst_QUtf8StringView : public QObject
{
Q_OBJECT
private Q_SLOTS:
void fromArraysOfUnknownSize();
void constExpr();
void construction();
void at();
void midLeftRight();
void nullString();
void emptyString();
void iterators();
void relationalOperators_data();
void relationalOperators();
};
void tst_QUtf8StringView::fromArraysOfUnknownSize()
{
from_array_of_unknown_size();
ONLY_IF_CHAR_8_T(from_array_of_unknown_size_8t());
}
void tst_QUtf8StringView::constExpr()
{
// compile-time checks
{
constexpr QUtf8StringView utf8s;
static_assert(utf8s.size() == 0);
static_assert(utf8s.isNull());
static_assert(utf8s.empty());
static_assert(utf8s.isEmpty());
static_assert(utf8s.data() == nullptr);
constexpr QUtf8StringView utf8s2(utf8s.data(), utf8s.data() + utf8s.size());
static_assert(utf8s2.isNull());
static_assert(utf8s2.empty());
}
{
constexpr QUtf8StringView utf8s = nullptr;
static_assert(utf8s.size() == 0);
static_assert(utf8s.isNull());
static_assert(utf8s.empty());
static_assert(utf8s.isEmpty());
static_assert(utf8s.data() == nullptr);
}
{
constexpr QUtf8StringView utf8s("");
static_assert(utf8s.size() == 0);
static_assert(!utf8s.isNull());
static_assert(utf8s.empty());
static_assert(utf8s.isEmpty());
constexpr QUtf8StringView utf8s2(utf8s.data(), utf8s.data() + utf8s.size());
static_assert(!utf8s2.isNull());
static_assert(utf8s2.empty());
}
{
static_assert(QUtf8StringView("Hello").size() == 5);
constexpr QUtf8StringView utf8s("Hello");
static_assert(utf8s.size() == 5);
static_assert(!utf8s.empty());
static_assert(!utf8s.isEmpty());
static_assert(!utf8s.isNull());
static_assert(*utf8s.data() == 'H');
static_assert(utf8s[0] == char('H'));
static_assert(utf8s.at(0) == char('H'));
static_assert(utf8s.front() == char('H'));
static_assert(utf8s[4] == char('o'));
static_assert(utf8s.at(4) == char('o'));
static_assert(utf8s.back() == char('o'));
#ifdef __cpp_char8_t
static_assert(utf8s[0] == char8_t('H'));
static_assert(utf8s.at(0) == char8_t('H'));
static_assert(utf8s.front() == char8_t('H'));
static_assert(utf8s[4] == char8_t('o'));
static_assert(utf8s.at(4) == char8_t('o'));
static_assert(utf8s.back() == char8_t('o'));
#endif
constexpr QUtf8StringView utf8s2(utf8s.data(), utf8s.data() + utf8s.size());
static_assert(!utf8s2.isNull());
static_assert(!utf8s2.empty());
static_assert(utf8s2.size() == 5);
}
}
void tst_QUtf8StringView::construction()
{
{
auto str = u8"hello";
QUtf8StringView utf8s(str);
QCOMPARE(utf8s.size(), 5);
QCOMPARE(utf8s.data(), as_const_void_star(&str[0]));
ONLY_IF_CHAR_8_T(QCOMPARE(as_const_void_star(utf8s.utf8()), as_const_void_star(&str[0])));
ONLY_IF_CHAR_8_T(QCOMPARE(as_const_void_star(utf8s.utf8()), utf8s.data()));
QUtf8StringView s1 = {str, 5};
QCOMPARE(s1, utf8s);
QUtf8StringView s2 = {str, str + 5};
QCOMPARE(s2, utf8s);
#ifdef __cpp_char8_t
QByteArrayView helloView(reinterpret_cast<const char *>(str));
#else
QByteArrayView helloView(str);
#endif
helloView = helloView.first(4);
utf8s = QUtf8StringView(helloView);
QCOMPARE(utf8s.data(), helloView.data());
QCOMPARE(utf8s.data(), as_const_void_star(helloView.data()));
QCOMPARE(utf8s.size(), helloView.size());
ONLY_IF_CHAR_8_T(QCOMPARE(utf8s.utf8(), as_const_void_star(helloView.data())));
ONLY_IF_CHAR_8_T(QCOMPARE(utf8s.size(), helloView.size()));
}
{
const char str[6] = "hello";
QUtf8StringView utf8s(str);
QCOMPARE(utf8s.size(), 5);
QCOMPARE(utf8s.data(), as_const_void_star(&str[0]));
QCOMPARE(utf8s.data(), "hello");
ONLY_IF_CHAR_8_T(QCOMPARE(as_const_void_star(utf8s.utf8()), as_const_void_star(&str[0])));
ONLY_IF_CHAR_8_T(QCOMPARE(as_const_void_star(utf8s.utf8()), utf8s.data()));
QUtf8StringView s1 = {str, 5};
QCOMPARE(s1, utf8s);
QUtf8StringView s2 = {str, str + 5};
QCOMPARE(s2, utf8s);
QByteArrayView helloView(str);
helloView = helloView.first(4);
utf8s = QUtf8StringView(helloView);
QCOMPARE(utf8s.data(), helloView.data());
QCOMPARE(utf8s.data(), as_const_void_star(helloView.data()));
QCOMPARE(utf8s.size(), helloView.size());
ONLY_IF_CHAR_8_T(QCOMPARE(utf8s.utf8(), as_const_void_star(helloView.data())));
ONLY_IF_CHAR_8_T(QCOMPARE(utf8s.size(), helloView.size()));
}
{
const QByteArray helloArray("hello");
QUtf8StringView utf8s(helloArray);
QCOMPARE(utf8s.data(), helloArray.data());
ONLY_IF_CHAR_8_T(QCOMPARE(utf8s.utf8(), as_const_void_star(helloArray.data())));
QCOMPARE(utf8s.size(), helloArray.size());
QByteArrayView helloView(helloArray);
helloView = helloView.first(4);
utf8s = QUtf8StringView(helloView);
QCOMPARE(utf8s.data(), helloView.data());
ONLY_IF_CHAR_8_T(QCOMPARE(utf8s.utf8(), as_const_void_star(helloView.data())));
QCOMPARE(utf8s.size(), helloView.size());
}
}
void tst_QUtf8StringView::at()
{
const QUtf8StringView utf8("Hello World");
QCOMPARE(utf8.at(0), 'H');
QCOMPARE(utf8.at(utf8.size() - 1), 'd');
QCOMPARE(utf8[0], 'H');
QCOMPARE(utf8[utf8.size() - 1], 'd');
}
void tst_QUtf8StringView::midLeftRight()
{
const QUtf8StringView utf8("Hello World");
QCOMPARE(utf8.mid(0), utf8);
QCOMPARE(utf8.mid(0, utf8.size()), utf8);
QCOMPARE(utf8.left(utf8.size()), utf8);
QCOMPARE(utf8.right(utf8.size()), utf8);
QCOMPARE(utf8.mid(6), QUtf8StringView("World"));
QCOMPARE(utf8.mid(6, 5), QUtf8StringView("World"));
QCOMPARE(utf8.right(5), QUtf8StringView("World"));
QCOMPARE(utf8.mid(6, 1), QUtf8StringView("W"));
QCOMPARE(utf8.right(5).left(1), QUtf8StringView("W"));
QCOMPARE(utf8.left(5), QUtf8StringView("Hello"));
}
void tst_QUtf8StringView::nullString()
{
// default ctor
{
QUtf8StringView utf8;
QCOMPARE(as_const_void_star(utf8.data()), nullptr);
QCOMPARE(utf8.size(), 0);
QString s = utf8.toString(); //no operator=
QVERIFY(s.isNull());
}
// from nullptr
{
const char *null = nullptr;
QUtf8StringView utf8(null);
QCOMPARE(as_const_void_star(utf8.data()), nullptr);
QCOMPARE(utf8.size(), 0);
QString s = utf8.toString(); //no operator=
QVERIFY(s.isNull());
}
// from null QByteArray
{
const QByteArray null;
QVERIFY(null.isNull());
QUtf8StringView utf8(null);
QCOMPARE(as_const_void_star(utf8.data()), nullptr);
QCOMPARE(utf8.size(), 0);
QString s = utf8.toString(); //no operator=
QVERIFY(s.isNull());
}
}
void tst_QUtf8StringView::emptyString()
{
{
const char *empty = "";
QUtf8StringView utf8(empty);
QCOMPARE(as_const_void_star(utf8.data()), as_const_void_star(empty));
QCOMPARE(utf8.size(), 0);
QString s = utf8.toString(); //no operator=
QVERIFY(s.isEmpty());
QVERIFY(!s.isNull());
}
{
const char *notEmpty = "foo";
QUtf8StringView utf8(notEmpty, qsizetype(0));
QCOMPARE(as_const_void_star(utf8.data()), as_const_void_star(notEmpty));
QCOMPARE(utf8.size(), 0);
QString s = utf8.toString(); //no operator=
QVERIFY(s.isEmpty());
QVERIFY(!s.isNull());
}
{
const QByteArray empty = "";
QUtf8StringView utf8(empty);
QCOMPARE(as_const_void_star(utf8.data()), as_const_void_star(empty.constData()));
QCOMPARE(utf8.size(), 0);
QString s = utf8.toString(); //no operator=
QVERIFY(s.isEmpty());
QVERIFY(!s.isNull());
}
}
void tst_QUtf8StringView::iterators()
{
QUtf8StringView hello("hello");
QUtf8StringView olleh("olleh");
QVERIFY(std::equal(hello.begin(), hello.end(),
olleh.rbegin()));
QVERIFY(std::equal(hello.rbegin(), hello.rend(),
QT_MAKE_CHECKED_ARRAY_ITERATOR(olleh.begin(), olleh.size())));
QVERIFY(std::equal(hello.cbegin(), hello.cend(),
olleh.rbegin()));
QVERIFY(std::equal(hello.crbegin(), hello.crend(),
QT_MAKE_CHECKED_ARRAY_ITERATOR(olleh.begin(), olleh.size())));
}
void tst_QUtf8StringView::relationalOperators_data()
{
QTest::addColumn<QUtf8StringView>("lhs");
QTest::addColumn<int>("lhsOrderNumber");
QTest::addColumn<QUtf8StringView>("rhs");
QTest::addColumn<int>("rhsOrderNumber");
struct Data {
QUtf8StringView l1;
int order;
} data[] = {
{ QUtf8StringView(), 0 },
{ QUtf8StringView(""), 0 },
{ QUtf8StringView("a"), 1 },
{ QUtf8StringView("aa"), 2 },
{ QUtf8StringView("b"), 3 },
};
for (Data *lhs = data; lhs != data + sizeof data / sizeof *data; ++lhs) {
for (Data *rhs = data; rhs != data + sizeof data / sizeof *data; ++rhs) {
QUtf8StringView l = { lhs->l1 }, r = { rhs->l1 };
QTest::addRow("\"%s\" <> \"%s\"",
lhs->l1.data() ? lhs->l1.data() : "nullptr",
rhs->l1.data() ? rhs->l1.data() : "nullptr")
<< l << lhs->order << r << rhs->order;
}
}
}
void tst_QUtf8StringView::relationalOperators()
{
QFETCH(QUtf8StringView, lhs);
QFETCH(int, lhsOrderNumber);
QFETCH(QUtf8StringView, rhs);
QFETCH(int, rhsOrderNumber);
#define CHECK(op) \
QCOMPARE(lhs op rhs, lhsOrderNumber op rhsOrderNumber) \
/*end*/
CHECK(==);
CHECK(!=);
CHECK(< );
CHECK(> );
CHECK(<=);
CHECK(>=);
#undef CHECK
}
QTEST_APPLESS_MAIN(tst_QUtf8StringView)
#include "tst_qutf8stringview.moc"