Method test

src/test/java/com/amazon/ion/RoundTripTest.java:205–264

()

    @Test
    public void test()
    throws Exception
    {
        IonDatagram values = loader().load(myTestFile);

        // Turn the DOM back into text...
        String text1   = renderSystemView(values);
        byte[] binary1 = encode(values);
        checkBinaryHeader(binary1);

        // Reload the first-trip text
        IonLoader loader = system().newLoader();
        IonDatagram dgFromText;
        try
        {
            dgFromText = loader.load(text1);
        }
        catch (Exception e)
        {
            String message =
                "Error parsing file " + myTestFile.getName() +
                " reprinted as:\n" + text1;
            throw new IonException(message, e);
        }

        String text2FromText   = renderUserView(dgFromText);
        byte[] binary2FromText = encode(dgFromText);
        checkBinaryHeader(binary2FromText);


        // Reload the first-trip binary

        IonReader reader = getStreamingMode().newIonReader(system().getCatalog(), binary1);
        IonDatagram dgFromBinary = loader.load(reader);
        reader.close();

        String text2FromBinary   = renderUserView(dgFromBinary);
        byte[] binary2FromBinary = encode(dgFromBinary);
        checkBinaryHeader(binary2FromBinary);

        // check strict data equivalence
        reader = getStreamingMode().newIonReader(system().getCatalog(), binary2FromBinary);
        IonDatagram dgbinary2FromBinary = loader.load(reader);
        reader.close();
        assertIonEquals(dgFromBinary, dgbinary2FromBinary);

        if (!compareRenderedTextImages(text2FromText, text2FromBinary))
        {
            fail("different printing from text vs from binary\n" +
            	 "text2FromText: " + text2FromText + "\n" +
                 "text2FromBinary: " + text2FromBinary);
        }

        // check strict data equivalence
        reader = getStreamingMode().newIonReader(system().getCatalog(), binary2FromText);
        IonDatagram dgBinary2FromText = loader.load(reader);
        reader.close();