ctstringtest.cpp

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/**********************************************************************
 * LeechCraft - modular cross-platform feature rich internet client.
 * Copyright (C) 2006-2014  Georg Rudoy
 *
 * Distributed under the Boost Software License, Version 1.0.
 * (See accompanying file LICENSE or copy at https://www.boost.org/LICENSE_1_0.txt)
 **********************************************************************/

#include "ctstringtest.h"
#include <QtTest>
#include <ctstring.h>
#include <ctstringutils.h>

QTEST_APPLESS_MAIN (LC::Util::CtStringTest)

namespace LC::Util
{
#define TEST_STR "test string"
    void CtStringTest::testConstruction ()
    {
        constexpr CtString s { TEST_STR };
        QCOMPARE (ToString<s> (), QString { TEST_STR });
    }

    void CtStringTest::testUnsizedConstruction ()
    {
        constexpr auto getStr = [] () constexpr { return TEST_STR; };

        constexpr auto s = CtString<StringBufSize (getStr ())>::FromUnsized (getStr ());
        QCOMPARE (ToString<s> (), QString { TEST_STR });
    }

    void CtStringTest::testUDL ()
    {
        constexpr auto s = "test string"_ct;
        QCOMPARE (ToString<s> (), QString { TEST_STR });
    }

    void CtStringTest::testConcat ()
    {
        constexpr auto s1 = "hello, "_ct;
        constexpr auto s2 = "world!"_ct;
        constexpr auto s3 = " how's life?"_ct;

        constexpr auto concat = s1 + s2 + s3;
        const QString expected { "hello, world! how's life?" };
        QCOMPARE (ToString<concat> (), expected);

        QCOMPARE (ToString<"hello, "_ct + "world!" + " how's life?"> (), expected);

        QCOMPARE (ToString<"hello, " + "world!"_ct + " how's life?"> (), expected);
    }

    void CtStringTest::testReplaceAll ()
    {
        constexpr auto s1 = "Hello, _! The _ is nice!"_ct;
        constexpr auto s2 = "world"_ct;
        constexpr auto s3 = ReplaceAll<s1, '_'> (s2);
        QCOMPARE (ToString<s3> (), "Hello, world! The world is nice!");
    }

    void CtStringTest::testNub ()
    {
        constexpr static std::tuple input { "hello"_ct, "world"_ct, "hello"_ct, "lc"_ct, "what's"_ct, "up"_ct, "lc"_ct, "lc"_ct };
        constexpr std::tuple expected { "hello"_ct, "world"_ct, "lc"_ct, "what's"_ct, "up"_ct };

        constexpr static auto F = [&] { return input; };
        constexpr auto nubbed = Nub<F>();
        static_assert (nubbed == expected);
    }

    constexpr bool TestUB ()
    {
        [[maybe_unused]] constexpr auto str = "hello, " + "world!"_ct + " how's life?";
        return true;
    }

    static_assert (TestUB ());
}