public void testDynamicMessagePackedParsing() throws Exception {
TestPackedTypes.Builder builder = TestPackedTypes.newBuilder();
TestUtil.setPackedFields(builder);
TestPackedTypes message = builder.build();
ByteString rawBytes = message.toByteString();
Message message2 =
DynamicMessage.parseFrom(TestPackedTypes.getDescriptor(), rawBytes);
packedReflectionTester.assertPackedFieldsSetViaReflection(message2);