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++ // Copyright (C) 2026 The Qt Company Ltd.
++ // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
++
++ #include "uniqueitemsapi.h"
++
++ #include <QtOpenApiCommon/qoaihelpers.h>
++
++ #include <QtCore/qobject.h>
++ #include <QtCore/qset.h>
++ #include <QtTest/qtest.h>
++
++ using namespace Qt::StringLiterals;
++ using namespace QtOpenApiCommon;
++
++ namespace QtOpenAPI {
++
++ /**
++ *
++ * Array schemas with "uniqueItems: true" are generated as QSet.
++ * The following test checks that the generated client code, which
++ * serializes such parameters in query, path, header and cookie,
++ * compiles.
++ *
++ * NOTE:
++ * The test does not require a server side, as we are not testing
++ * the data transfer here.
++ *
++ **/
++ class tst_UniqueItems : public QObject
++ {
++ Q_OBJECT
++
++ private Q_SLOTS:
++ void serializeSet();
++ void generatedApi();
++ };
++
++ void tst_UniqueItems::serializeSet()
++ {
++ SerializationOptions opts;
++ opts.style = "form";
++ opts.delimiter = u","_s;
++
++ QCOMPARE(serializeArrayValue(QSet<QString>{ u"one"_s }, opts), u"one"_s);
++
++ const QString result = serializeArrayValue(QSet<QString>{ u"one"_s, u"two"_s }, opts);
++ const QStringList items = result.split(u',');
++ QCOMPARE(items.size(), 2);
++ QVERIFY(items.contains(u"one"_s));
++ QVERIFY(items.contains(u"two"_s));
++ }
++
++ void tst_UniqueItems::generatedApi()
++ {
++ UniqueItemsApi api;
++
++ // FIXME: QSet<Color> stays empty, as inserting into it does not compile
++ // with QT_NO_SINGLE_ARGUMENT_QHASH_OVERLOAD due to the single-argument
++ // qHash() overload of QOAIEnum.
++ #if 0
++ Color red;
++ red.setValue(Color::eColor::RED);
++ Color blue;
++ blue.setValue(Color::eColor::BLUE);
++ const QSet<Color> colors{ red, blue };
++ #else
++ const QSet<Color> colors;
++ #endif
++
++ bool done = true;
++ api.queryUniqueEnums(colors, QSet<QString>{ u"one"_s, u"two"_s }, this,
++ [&](const QRestReply &reply) { done = reply.isSuccess(); });
++ QTRY_COMPARE_EQ(done, false);
++
++ done = true;
++ api.pathUniqueEnums(colors, this,
++ [&](const QRestReply &reply) { done = reply.isSuccess(); });
++ QTRY_COMPARE_EQ(done, false);
++
++ done = true;
++ api.headerUniqueEnums(colors, this,
++ [&](const QRestReply &reply) { done = reply.isSuccess(); });
++ QTRY_COMPARE_EQ(done, false);
++
++ done = true;
++ api.cookieUniqueEnums(colors, this,
++ [&](const QRestReply &reply) { done = reply.isSuccess(); });
++ QTRY_COMPARE_EQ(done, false);
++ }
++
++ } // QtOpenAPI
++
++ QTEST_MAIN(QtOpenAPI::tst_UniqueItems)
++ #include "tst_uniqueitems.moc"