Tools/TestWebKitAPI/Tests/IPC/TransferStringTests.cpp

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#include "config.h"

#include "IPCTestUtilities.h"
#include "Helpers/Test.h"
#include "TransferString.h"

namespace TestWebKitAPI {

// Tests that String -> IPC::TransferString -> String is the same as String.
// Tests that StringView -> IPC::TransferString -> String is the same as String.
TEST(TransferStringTests, CreateFromString)
{
    Vector<Latin1Character> longLatin1Data(FillWith { }, 1024*1024, 'a');
    Vector<char16_t> longUnicodeData(FillWith { }, 1024*1200, u'a');

    String subcases[] = {
        { },
        ""_s,
        "ab"_s,
        String { longLatin1Data },
        String { longUnicodeData },
        longUnicodeData.span().first(0), // Empty unicode.
    };
    bool bools[] = { false, true };
    for (bool releaseToCopy : bools) {
        for (auto& subcase : subcases) {
            {
                SCOPED_TRACE(::testing::Message() << "TransferString(String) releaseToCopy: " << releaseToCopy << " subcase: \"" << subcase << "\"");
                auto ts = IPC::TransferString::create(subcase);
                EXPECT_TRUE(ts.has_value());
                auto string = releaseToCopy ? WTF::move(*ts).releaseToCopy() : WTF::move(*ts).release();
                EXPECT_EQ(string, subcase);
            }
            {
                SCOPED_TRACE(::testing::Message() << "TransferString(StringView) releaseToCopy: " << releaseToCopy << " subcase: \"" << subcase << "\"");
                auto ts = IPC::TransferString::create(StringView { subcase });
                EXPECT_TRUE(ts.has_value());
                auto string = releaseToCopy ? WTF::move(*ts).releaseToCopy() : WTF::move(*ts).release();
                EXPECT_EQ(string, subcase);
            }

            {
                SCOPED_TRACE(::testing::Message() << "TransferString(String) IPC encode/decode, releaseToCopy: " << releaseToCopy << " subcase: \"" << subcase << "\"");
                auto ts = IPC::TransferString::create(subcase);
                EXPECT_TRUE(ts.has_value());
                auto tsAfterIPC = copyViaEncoder(*ts);
                ASSERT_TRUE(tsAfterIPC.has_value());
                auto string = releaseToCopy ? WTF::move(*tsAfterIPC).releaseToCopy() : WTF::move(*tsAfterIPC).release();
                EXPECT_EQ(string, subcase);
            }

            {
                SCOPED_TRACE(::testing::Message() << "TransferString(StringView) IPC encode/decode, releaseToCopy: " << releaseToCopy << " subcase: \"" << subcase << "\"");
                auto ts = IPC::TransferString::create(StringView { subcase });
                EXPECT_TRUE(ts.has_value());
                auto tsAfterIPC = copyViaEncoder(*ts);
                ASSERT_TRUE(tsAfterIPC.has_value());
                auto string = releaseToCopy ? WTF::move(*tsAfterIPC).releaseToCopy() : WTF::move(*tsAfterIPC).release();
                EXPECT_EQ(string, subcase);
            }
        }
    }
}

}