### Question:
AvroCompatibilityHelper { public static BinaryDecoder newBinaryDecoder(InputStream in) { return FACTORY.newBinaryDecoder(in); } private  AvroCompatibilityHelper(); static BinaryEncoder newBinaryEncoder(OutputStream out); static Encoder newBufferedBinaryEncoder(OutputStream out); static BinaryEncoder newBinaryEncoder(ObjectOutput out); static BinaryDecoder newBinaryDecoder(InputStream in); static BinaryDecoder newBinaryDecoder(ObjectInput in); static JsonEncoder newJsonEncoder(Schema schema, OutputStream out); static JsonEncoder newJsonEncoder(Schema schema, JsonGenerator jsonGenerator); static JsonDecoder newJsonDecoder(Schema schema, InputStream input); static JsonDecoder newJsonDecoder(Schema schema, String input); static GenericData.EnumSymbol newEnumSymbol(Schema avroSchema, String enumValue); static GenericData.Fixed newFixedField(Schema ofType); static GenericData.Fixed newFixedField(Schema ofType, byte[] contents); static Object newInstance(Class clazz, Schema schema); static Schema getSchema(Type type); static Object getDefaultValue(Schema.Field field); static boolean isSpecificRecord(IndexedRecord indexedRecord); static boolean isGenericRecord(IndexedRecord indexedRecord); static Collection<AvroGeneratedSourceCode> compile(Collection<Schema> toCompile, AvroVersion compatibilityLevel); static AvroVersion getRuntimeAvroVersion(); static Schema parse(String schemaJson); static SchemaParseResult parse(String schemaJson, Collection<Schema> known); static String toParsingForm(Schema s);  }### Answer:
@Test public void testBinaryDecoder() { ByteArrayInputStream is = new ByteArrayInputStream(new byte[0]); BinaryDecoder binaryDecoder = AvroCompatibilityHelper.newBinaryDecoder(is); Assert.assertNotNull(binaryDecoder); }