Tools/TestWebKitAPI/Tests/WTF/NeverDestroyed.cpp

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#include "config.h"

#include "LifecycleLogger.h"
#include "MoveOnlyLifecycleLogger.h"
#include <wtf/NeverDestroyed.h>
#include <wtf/Vector.h>

namespace TestWebKitAPI {

TEST(WTF_NeverDestroyed, Construct)
{
    { static NeverDestroyed<LifecycleLogger> x; UNUSED_PARAM(x);}
    ASSERT_STREQ("construct(<default>) ", takeLogStr().c_str());

    { static NeverDestroyed<LifecycleLogger> x("name"); UNUSED_PARAM(x); }
    ASSERT_STREQ("construct(name) ", takeLogStr().c_str());

    { static auto x = makeNeverDestroyed(LifecycleLogger { "name" }); UNUSED_PARAM(x); }
    ASSERT_STREQ("construct(name) move-construct(name) destruct(<default>) ", takeLogStr().c_str());

    {
        static NeverDestroyed<LifecycleLogger> x("name");
        LifecycleLogger l = x.get();
        l.setName("x");
        ASSERT_STREQ(x.get().name, "name");
    }
    ASSERT_STREQ("construct(name) copy-construct(name) set-name(x) destruct(x) ", takeLogStr().c_str());

    { static NeverDestroyed<LifecycleLogger> x { [] { return LifecycleLogger { "name" }; }() }; UNUSED_PARAM(x); }
    ASSERT_STREQ("construct(name) move-construct(name) destruct(<default>) ", takeLogStr().c_str());

    {
        static auto x = makeNeverDestroyed([] {
            LifecycleLogger l { "name" };
            l.setName("x");
            return l;
        }());
        ASSERT_STREQ(x.get().name, "x");
    }
#if COMPILER(MSVC) && !defined(NDEBUG)
    ASSERT_STREQ("construct(name) set-name(x) move-construct(x) destruct(<default>) move-construct(x) destruct(<default>) ", takeLogStr().c_str());
#else
    ASSERT_STREQ("construct(name) set-name(x) move-construct(x) destruct(<default>) ", takeLogStr().c_str());
#endif

    {
        static NeverDestroyed<LifecycleLogger> x;
        static NeverDestroyed<LifecycleLogger> y { WTFMove(x) };
        UNUSED_PARAM(y);
    }
    ASSERT_STREQ("construct(<default>) move-construct(<default>) ", takeLogStr().c_str());

    {
        static NeverDestroyed<const LifecycleLogger> x;
        static NeverDestroyed<const LifecycleLogger> y { WTFMove(x) };
        UNUSED_PARAM(y);
    }
    ASSERT_STREQ("construct(<default>) move-construct(<default>) ", takeLogStr().c_str());

    { static NeverDestroyed<MoveOnlyLifecycleLogger> x { [] { return MoveOnlyLifecycleLogger { "name" }; }() }; UNUSED_PARAM(x); }
    ASSERT_STREQ("construct(name) move-construct(name) destruct(<default>) ", takeLogStr().c_str());

    {
        static auto x = makeNeverDestroyed([] {
            MoveOnlyLifecycleLogger l { "name" };
            l.setName("x");
            return l;
        }());
        UNUSED_PARAM(x);
    }
#if COMPILER(MSVC) && !defined(NDEBUG)
    ASSERT_STREQ("construct(name) set-name(x) move-construct(x) destruct(<default>) move-construct(x) destruct(<default>) ", takeLogStr().c_str());
#else
    ASSERT_STREQ("construct(name) set-name(x) move-construct(x) destruct(<default>) ", takeLogStr().c_str());
#endif
}

static const Vector<int>& list()
{
    static const auto x = makeNeverDestroyed(Vector<int> { 1, 2, 3 });
    return x;
}

TEST(WTF_NeverDestroyed, Basic)
{
    ASSERT_EQ(list().size(), 3u);
    ASSERT_EQ(&list(), &list());
}

} // namespace TestWebKitAPI