qt5base-lts/tests/auto/testlib/selftests/strcmp/tst_strcmp.cpp

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#include <QtCore/QCoreApplication>
#include <QtTest/QtTest>

class tst_StrCmp: public QObject
{
    Q_OBJECT

private slots:
    void compareCharStars() const;
    void compareByteArray() const;
    void failByteArray() const;
    void failByteArrayNull() const;
    void failByteArrayEmpty() const;
    void failByteArraySingleChars() const;
};

void tst_StrCmp::compareCharStars() const
{
    QCOMPARE((const char *)"foo", (const char *)"foo");

    const char *str1 = "foo";
    QCOMPARE("foo", str1);
    QCOMPARE(str1, "foo");
    QCOMPARE(str1, str1);

    char *str2 = const_cast<char *>("foo");
    QCOMPARE("foo", str2);
    QCOMPARE(str2, "foo");
    QCOMPARE(str2, str2);
    QCOMPARE(str1, str2);
    QCOMPARE(str2, str1);

    const char str3[] = "foo";
    QCOMPARE((const char *)str3, "foo");
    QCOMPARE("foo", (const char *)str3);
    QCOMPARE((const char *)str3, str1);
    QCOMPARE((const char *)str3, str2);
    QCOMPARE(str1, (const char *)str3);
    QCOMPARE(str2, (const char *)str3);
}

void tst_StrCmp::compareByteArray() const
{
    QByteArray ba = "foo";
    QEXPECT_FAIL("", "Next test should fail", Continue);
    QCOMPARE(ba.constData(), "bar");
    QCOMPARE(ba.constData(), "foo");

    char *bar = const_cast<char *>("bar");
    char *foo = const_cast<char *>("foo");

    QEXPECT_FAIL("", "Next test should fail", Continue);
    QCOMPARE(ba.data(), bar);
    QCOMPARE(ba.data(), foo);

    const char *cbar = "bar";
    const char *cfoo = "foo";

    QEXPECT_FAIL("", "Next test should fail", Continue);
    QCOMPARE(ba.constData(), cbar);
    QCOMPARE(ba.constData(), cfoo);

    /* Create QByteArrays of the size that makes the corresponding toString() crop output. */
    const QByteArray b(500, 'A');
    const QByteArray a(500, 'B');

    QCOMPARE(a, b);
}

void tst_StrCmp::failByteArray() const
{
    /* Compare small, different byte arrays. */
    QCOMPARE(QByteArray("abc"), QByteArray("cba"));
}

void tst_StrCmp::failByteArrayNull() const
{
    /* Compare null byte array against with content. */
    QCOMPARE(QByteArray("foo"), QByteArray());
}

void tst_StrCmp::failByteArrayEmpty() const
{
    QCOMPARE(QByteArray(""), QByteArray("foo"));
}

void tst_StrCmp::failByteArraySingleChars() const
{
    /* Compare null byte array against with content. */
    //QCOMPARE(QString(250, 'a'), QString(250, 'b'));
    QCOMPARE(QByteArray("6"), QByteArray("7"));
}

QTEST_MAIN(tst_StrCmp)

#include "tst_strcmp.moc"