.addRepeatedString("hello")
.setOptionalNestedMessage(
TestAllTypesLite.NestedMessage.newBuilder().setBb(7))
.build();
ByteString data = message.toByteString();
TestAllTypesLite message2 = TestAllTypesLite.parseFrom(data);
assertEquals(123, message2.getOptionalInt32());
assertEquals(1, message2.getRepeatedStringCount());