C++ QUrlQuery::allQueryItemValues方法代码示例

void tst_QUrlQuery::old_queryItems()
{
    // test imported from old tst_qurl.cpp
    QUrlQuery url;

    QList<QPair<QString, QString> > newItems;
    newItems += qMakePair(QString("1"), QString("a"));
    newItems += qMakePair(QString("2"), QString("b"));
    newItems += qMakePair(QString("3"), QString("c"));
    newItems += qMakePair(QString("4"), QString("a b"));
    newItems += qMakePair(QString("5"), QString("&"));
    newItems += qMakePair(QString("foo bar"), QString("hello world"));
    newItems += qMakePair(QString("foo+bar"), QString("hello+world"));
    newItems += qMakePair(QString("tex"), QString("a + b = c"));
    url.setQueryItems(newItems);
    QVERIFY(!url.isEmpty());

    QList<QPair<QString, QString> > setItems = url.queryItems();
    QVERIFY(newItems == setItems);

    url.addQueryItem("1", "z");

#if 0
    // undefined behaviour in the new QUrlQuery

    QVERIFY(url.hasQueryItem("1"));
    QCOMPARE(url.queryItemValue("1").toLatin1().constData(), "a");

    url.addQueryItem("1", "zz");

    QStringList expected;
    expected += "a";
    expected += "z";
    expected += "zz";
    QCOMPARE(url.allQueryItemValues("1"), expected);

    url.removeQueryItem("1");
    QCOMPARE(url.allQueryItemValues("1").size(), 2);
    QCOMPARE(url.queryItemValue("1").toLatin1().constData(), "z");
#endif

    url.removeAllQueryItems("1");
    QVERIFY(!url.hasQueryItem("1"));

    QCOMPARE(url.queryItemValue("4").toLatin1().constData(), "a b");
    QCOMPARE(url.queryItemValue("5").toLatin1().constData(), "&");
    QCOMPARE(url.queryItemValue("tex").toLatin1().constData(), "a + b = c");
    QCOMPARE(url.queryItemValue("foo bar").toLatin1().constData(), "hello world");

    //url.setUrl("http://www.google.com/search?q=a+b");
    url.setQuery("q=a+b");
    QCOMPARE(url.queryItemValue("q"), QString("a+b"));

    //url.setUrl("http://www.google.com/search?q=a=b"); // invalid, but should be tolerated
    url.setQuery("q=a=b");
    QCOMPARE(url.queryItemValue("q"), QString("a=b"));
}

void tst_QUrlQuery::multiAddRemove()
{
    QUrlQuery query;

    {
        // one item, two values
        query.addQueryItem("a", "b");
        query.addQueryItem("a", "c");
        QVERIFY(!query.isEmpty());
        QVERIFY(query.hasQueryItem("a"));

        // returns the first one
        QVERIFY(query.queryItemValue("a") == "b");

        // order is the order we set them in
        QVERIFY(query.allQueryItemValues("a") == QStringList() << "b" << "c");
    }

    {
        // add another item, two values
        query.addQueryItem("A", "B");
        query.addQueryItem("A", "C");
        QVERIFY(query.hasQueryItem("A"));
        QVERIFY(query.hasQueryItem("a"));

        QVERIFY(query.queryItemValue("a") == "b");
        QVERIFY(query.allQueryItemValues("a") == QStringList() << "b" << "c");
        QVERIFY(query.queryItemValue("A") == "B");
        QVERIFY(query.allQueryItemValues("A") == QStringList() << "B" << "C");
    }

    {
        // remove one of the original items
        query.removeQueryItem("a");
        QVERIFY(query.hasQueryItem("a"));

        // it must have removed the first one
        QVERIFY(query.queryItemValue("a") == "c");
    }

    {
        // remove the items we added later
        query.removeAllQueryItems("A");
        QVERIFY(!query.isEmpty());
        QVERIFY(!query.hasQueryItem("A"));
    }

    {
        // add one element to the current, then remove them
        query.addQueryItem("a", "d");
        query.removeAllQueryItems("a");
        QVERIFY(!query.hasQueryItem("a"));
        QVERIFY(query.isEmpty());
    }
}

void tst_QUrlQuery::multiplyAddSamePair()
{
    QUrlQuery query;
    query.addQueryItem("a", "a");
    query.addQueryItem("a", "a");
    QCOMPARE(query.allQueryItemValues("a"), QStringList() << "a" << "a");

    query.addQueryItem("a", "a");
    QCOMPARE(query.allQueryItemValues("a"), QStringList() << "a" << "a" << "a");

    query.removeQueryItem("a");
    QCOMPARE(query.allQueryItemValues("a"), QStringList() << "a" << "a");
}

void tst_QUrlQuery::addRemove()
{
    QUrlQuery query;

    {
        // one item
        query.addQueryItem("a", "b");
        QVERIFY(!query.isEmpty());
        QVERIFY(query.hasQueryItem("a"));
        QCOMPARE(query.queryItemValue("a"), QString("b"));
        QCOMPARE(query.allQueryItemValues("a"), QStringList() << "b");

        QList<QPair<QString, QString> > allItems = query.queryItems();
        QCOMPARE(allItems.count(), 1);
        QCOMPARE(allItems.at(0).first, QString("a"));
        QCOMPARE(allItems.at(0).second, QString("b"));
    }

    QUrlQuery original = query;

    {
        // two items
        query.addQueryItem("c", "d");
        QVERIFY(query.hasQueryItem("a"));
        QCOMPARE(query.queryItemValue("a"), QString("b"));
        QCOMPARE(query.allQueryItemValues("a"), QStringList() << "b");
        QVERIFY(query.hasQueryItem("c"));
        QCOMPARE(query.queryItemValue("c"), QString("d"));
        QCOMPARE(query.allQueryItemValues("c"), QStringList() << "d");

        QList<QPair<QString, QString> > allItems = query.queryItems();
        QCOMPARE(allItems.count(), 2);
        QVERIFY(allItems.contains(qItem("a", "b")));
        QVERIFY(allItems.contains(qItem("c", "d")));

        QVERIFY(query != original);
        QVERIFY(!(query == original));
    }

    {
        // remove an item that isn't there
        QUrlQuery copy = query;
        query.removeQueryItem("e");
        QCOMPARE(query, copy);
    }

    {
        // remove an item
        query.removeQueryItem("c");
        QVERIFY(query.hasQueryItem("a"));
        QCOMPARE(query.queryItemValue("a"), QString("b"));
        QCOMPARE(query.allQueryItemValues("a"), QStringList() << "b");

        QList<QPair<QString, QString> > allItems = query.queryItems();
        QCOMPARE(allItems.count(), 1);
        QCOMPARE(allItems.at(0).first, QString("a"));
        QCOMPARE(allItems.at(0).second, QString("b"));

        QVERIFY(query == original);
        QVERIFY(!(query != original));
    }

    {
        // add an item with en empty value
        QString emptyButNotNull(0, Qt::Uninitialized);
        QVERIFY(emptyButNotNull.isEmpty());
        QVERIFY(!emptyButNotNull.isNull());

        query.addQueryItem("e", "");
        QVERIFY(query.hasQueryItem("a"));
        QCOMPARE(query.queryItemValue("a"), QString("b"));
        QCOMPARE(query.allQueryItemValues("a"), QStringList() << "b");
        QVERIFY(query.hasQueryItem("e"));
        QCOMPARE(query.queryItemValue("e"), emptyButNotNull);
        QCOMPARE(query.allQueryItemValues("e"), QStringList() << emptyButNotNull);

        QList<QPair<QString, QString> > allItems = query.queryItems();
        QCOMPARE(allItems.count(), 2);
        QVERIFY(allItems.contains(qItem("a", "b")));
        QVERIFY(allItems.contains(qItem("e", emptyButNotNull)));

        QVERIFY(query != original);
        QVERIFY(!(query == original));
    }

    {
        // remove the items
        query.removeQueryItem("a");
        query.removeQueryItem("e");
        QVERIFY(query.isEmpty());
    }
}

void tst_QUrlQuery::constructing()
{
    QUrlQuery empty;
    QVERIFY(empty.isEmpty());
    QCOMPARE(empty.queryPairDelimiter(), QUrlQuery::defaultQueryPairDelimiter());
    QCOMPARE(empty.queryValueDelimiter(), QUrlQuery::defaultQueryValueDelimiter());
    // undefined whether it is detached, but don't crash
    QVERIFY(empty.isDetached() || !empty.isDetached());

    empty.clear();
    QVERIFY(empty.isEmpty());

    {
        QUrlQuery copy(empty);
        QVERIFY(copy.isEmpty());
        QVERIFY(!copy.isDetached());
        QVERIFY(copy == empty);
        QVERIFY(!(copy != empty));

        copy = empty;
        QVERIFY(copy == empty);

        copy = QUrlQuery();
        QVERIFY(copy == empty);
    }
    {
        QUrlQuery copy(emptyQuery());
        QVERIFY(copy == empty);
    }

    QVERIFY(!empty.hasQueryItem("a"));
    QVERIFY(empty.queryItemValue("a").isEmpty());
    QVERIFY(empty.allQueryItemValues("a").isEmpty());

    QVERIFY(!empty.hasQueryItem(""));
    QVERIFY(empty.queryItemValue("").isEmpty());
    QVERIFY(empty.allQueryItemValues("").isEmpty());

    QVERIFY(!empty.hasQueryItem(QString()));
    QVERIFY(empty.queryItemValue(QString()).isEmpty());
    QVERIFY(empty.allQueryItemValues(QString()).isEmpty());

    QVERIFY(empty.queryItems().isEmpty());

    QUrlQuery other;
    other.addQueryItem("a", "b");
    QVERIFY(!other.isEmpty());
    QVERIFY(other.isDetached());
    QVERIFY(other != empty);
    QVERIFY(!(other == empty));

    QUrlQuery copy(other);
    QVERIFY(copy == other);

    copy.clear();
    QVERIFY(copy.isEmpty());
    QVERIFY(copy != other);

    copy = other;
    QVERIFY(!copy.isEmpty());
    QVERIFY(copy == other);

    copy = QUrlQuery();
    QVERIFY(copy.isEmpty());

    empty.setQueryDelimiters('(', ')');
    QCOMPARE(empty.queryValueDelimiter(), QChar(QLatin1Char('(')));
    QCOMPARE(empty.queryPairDelimiter(), QChar(QLatin1Char(')')));

    QList<QPair<QString, QString> > query;
    query += qMakePair(QString("type"), QString("login"));
    query += qMakePair(QString("name"), QString::fromUtf8("åge nissemannsen"));
    query += qMakePair(QString("ole&du"), QString::fromUtf8("anne+jørgen=sant"));
    query += qMakePair(QString("prosent"), QString("%"));
    copy.setQueryItems(query);
    QVERIFY(!copy.isEmpty());
}