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#include "config.h"
#include "core/html/LinkRelAttribute.h"
#include "platform/RuntimeEnabledFeatures.h"

#include "wtf/text/CString.h"
#include <gtest/gtest.h>

using namespace WebCore;

namespace {

class LinkRelAttributeTest : public testing::Test {
protected:
    virtual void SetUp()
    {
        m_touchIconLoadingEnabled = RuntimeEnabledFeatures::touchIconLoadingEnabled();
    }

    virtual void TearDown()
    {
        RuntimeEnabledFeatures::setTouchIconLoadingEnabled(m_touchIconLoadingEnabled);
    }

private:
    bool m_touchIconLoadingEnabled;
};

static inline void testLinkRelAttribute(String value, bool isStyleSheet, IconType iconType, bool isAlternate, bool isDNSPrefetch, bool isLinkSubresource, bool isLinkPrerender, bool isImport = false)
{
    LinkRelAttribute linkRelAttribute(value);
    ASSERT_EQ(isStyleSheet, linkRelAttribute.isStyleSheet()) << value.utf8().data();
    ASSERT_EQ(iconType, linkRelAttribute.iconType()) << value.utf8().data();
    ASSERT_EQ(isAlternate, linkRelAttribute.isAlternate()) << value.utf8().data();
    ASSERT_EQ(isDNSPrefetch, linkRelAttribute.isDNSPrefetch()) << value.utf8().data();
    ASSERT_EQ(isLinkSubresource, linkRelAttribute.isLinkSubresource()) << value.utf8().data();
    ASSERT_EQ(isLinkPrerender, linkRelAttribute.isLinkPrerender()) << value.utf8().data();
    ASSERT_EQ(isImport, linkRelAttribute.isImport()) << value.utf8().data();
}

TEST_F(LinkRelAttributeTest, Constructor)
{
    RuntimeEnabledFeatures::setTouchIconLoadingEnabled(false);

    testLinkRelAttribute("stylesheet", true, InvalidIcon, false, false, false, false);
    testLinkRelAttribute("sTyLeShEeT", true, InvalidIcon, false, false, false, false);

    testLinkRelAttribute("icon", false, Favicon, false, false, false, false);
    testLinkRelAttribute("iCoN", false, Favicon, false, false, false, false);
    testLinkRelAttribute("shortcut icon", false, Favicon, false, false, false, false);
    testLinkRelAttribute("sHoRtCuT iCoN", false, Favicon, false, false, false, false);

    testLinkRelAttribute("dns-prefetch", false, InvalidIcon, false, true, false, false);
    testLinkRelAttribute("dNs-pReFeTcH", false, InvalidIcon, false, true, false, false);

    testLinkRelAttribute("apple-touch-icon", false, InvalidIcon, false, false, false, false);
    testLinkRelAttribute("aPpLe-tOuCh-IcOn", false, InvalidIcon, false, false, false, false);
    testLinkRelAttribute("apple-touch-icon-precomposed", false, InvalidIcon, false, false, false, false);
    testLinkRelAttribute("aPpLe-tOuCh-IcOn-pReCoMpOsEd", false, InvalidIcon, false, false, false, false);

    testLinkRelAttribute("alternate stylesheet", true, InvalidIcon, true, false, false, false);
    testLinkRelAttribute("stylesheet alternate", true, InvalidIcon, true, false, false, false);
    testLinkRelAttribute("aLtErNaTe sTyLeShEeT", true, InvalidIcon, true, false, false, false);
    testLinkRelAttribute("sTyLeShEeT aLtErNaTe", true, InvalidIcon, true, false, false, false);

    testLinkRelAttribute("stylesheet icon prerender aLtErNaTe", true, Favicon, true, false, false, true);
    testLinkRelAttribute("alternate subresource", false, InvalidIcon, true, false, true, false);
    testLinkRelAttribute("alternate icon stylesheet", true, Favicon, true, false, false, false);

    testLinkRelAttribute("import", false, InvalidIcon, false, false, false, false, true);
    // "import" is mutually exclusive and "stylesheet" wins when they conflict.
    testLinkRelAttribute("stylesheet import", true, InvalidIcon, false, false, false, false, false);
}

TEST_F(LinkRelAttributeTest, ConstructorTouchIconLoadingEnabled)
{
    RuntimeEnabledFeatures::setTouchIconLoadingEnabled(true);

    testLinkRelAttribute("stylesheet", true, InvalidIcon, false, false, false, false);
    testLinkRelAttribute("sTyLeShEeT", true, InvalidIcon, false, false, false, false);

    testLinkRelAttribute("icon", false, Favicon, false, false, false, false);
    testLinkRelAttribute("iCoN", false, Favicon, false, false, false, false);
    testLinkRelAttribute("shortcut icon", false, Favicon, false, false, false, false);
    testLinkRelAttribute("sHoRtCuT iCoN", false, Favicon, false, false, false, false);

    testLinkRelAttribute("dns-prefetch", false, InvalidIcon, false, true, false, false);
    testLinkRelAttribute("dNs-pReFeTcH", false, InvalidIcon, false, true, false, false);
    testLinkRelAttribute("alternate dNs-pReFeTcH", false, InvalidIcon, true, true, false, false);

    testLinkRelAttribute("apple-touch-icon", false, TouchIcon, false, false, false, false);
    testLinkRelAttribute("aPpLe-tOuCh-IcOn", false, TouchIcon, false, false, false, false);
    testLinkRelAttribute("apple-touch-icon-precomposed", false, TouchPrecomposedIcon, false, false, false, false);
    testLinkRelAttribute("aPpLe-tOuCh-IcOn-pReCoMpOsEd", false, TouchPrecomposedIcon, false, false, false, false);

    testLinkRelAttribute("alternate stylesheet", true, InvalidIcon, true, false, false, false);
    testLinkRelAttribute("stylesheet alternate", true, InvalidIcon, true, false, false, false);
    testLinkRelAttribute("aLtErNaTe sTyLeShEeT", true, InvalidIcon, true, false, false, false);
    testLinkRelAttribute("sTyLeShEeT aLtErNaTe", true, InvalidIcon, true, false, false, false);

    testLinkRelAttribute("stylesheet icon prerender aLtErNaTe", true, Favicon, true, false, false, true);
    testLinkRelAttribute("alternate subresource", false, InvalidIcon, true, false, true, false);
    testLinkRelAttribute("alternate icon stylesheet", true, Favicon, true, false, false, false);

    testLinkRelAttribute("import", false, InvalidIcon, false, false, false, false, true);
    testLinkRelAttribute("alternate import", false, InvalidIcon, true, false, false, false, true);
    testLinkRelAttribute("stylesheet import", true, InvalidIcon, false, false, false, false, false);
}

} // namespace