Class RoundTripTest

src/test/java/com/amazon/ion/RoundTripTest.java:47–341

Processes all text files in the "good" suite, transforming between text and binary twice to ensure that the process is equivalent. TODO amazon-ion/ion-java/issues/29 Refactor this test class, possible duplicate test coverage in RoundTripStreamingTest.

 * {@link RoundTripStreamingTest}.
 */
public class RoundTripTest
    extends IonTestCase
{
    // TODO amazon-ion/ion-java/issues/27 Writing IonSymbol to bytes using IonSymbol.writeTo(IonWriter)
    // will throw UnknownSymbolException if symbol text is unknown
    public static final FilenameFilter ROUND_TRIP_TEST_SKIP_LIST =
        new FileIsNot("good/symbols.ion");

    /**
     * Enumeration of the different ways a materialized IonValue can be
     * serialized (encoded) into binary Ion format.
     */
    private enum BinaryEncoderType
    {
        DATAGRAM_GET_BYTES,
        VALUE_WRITETO_WRITER,
        WRITER_WRITEVALUES_READER
    }

    /**
     * We don't use binary files since some of those have non-canonical
     * encodings that won't round-trip.
     */
    @Inject("testFile")
    public static final File[] FILES = testdataFiles(new And(TEXT_ONLY_FILTER, GLOBAL_SKIP_LIST, ROUND_TRIP_TEST_SKIP_LIST), GOOD_IONTESTS_FILES);

    @Inject("copySpeed")
    public static final StreamCopySpeed[] STREAM_COPY_SPEEDS =
        StreamCopySpeed.values();

    @Inject("binaryEncoderType")
    public static final BinaryEncoderType[] BINARY_ENCODER_TYPES =
        BinaryEncoderType.values();

    private StringBuilder       myBuilder;
    private File                myTestFile;
    private BinaryEncoderType   myBinaryEncoderType;

    public void setTestFile(File file)
    {
        myTestFile = file;
    }

    public void setBinaryEncoderType(BinaryEncoderType type)
    {
        myBinaryEncoderType = type;
    }

    @Override
    @Before
    public void setUp()
    throws Exception
    {
        super.setUp();
        myBuilder = new StringBuilder();
    }

    @Override