extern crate elrond_codec_derive; use elrond_codec_derive::*; use elrond_codec::test_util::check_top_encode_decode; #[derive(TopEncodeOrDefault, TopDecodeOrDefault, PartialEq, Eq, Clone, Debug)] pub struct StructOrDefault { pub int: u16, pub seq: Vec, pub another_byte: u8, pub uint_32: u32, pub uint_64: u64, } impl elrond_codec::EncodeDefault for StructOrDefault { fn is_default(&self) -> bool { self.int == 5 } } impl elrond_codec::DecodeDefault for StructOrDefault { fn default() -> Self { StructOrDefault { int: 5, seq: vec![], another_byte: 0, uint_32: 0, uint_64: 0, } } } #[test] fn struct_default() { let s = StructOrDefault { int: 5, seq: vec![], another_byte: 0, uint_32: 0, uint_64: 0, }; check_top_encode_decode(s, &[]); } #[test] fn struct_or_default_not_default() { let s = StructOrDefault { int: 0x42, seq: vec![0x1, 0x2, 0x3, 0x4, 0x5], another_byte: 0x6, uint_32: 0x12345, uint_64: 0x123456789, }; #[rustfmt::skip] let bytes_1 = &[ /* int */ 0, 0x42, /* seq length */ 0, 0, 0, 5, /* seq contents */ 1, 2, 3, 4, 5, /* another_byte */ 6, /* uint_32 */ 0x00, 0x01, 0x23, 0x45, /* uint_64 */ 0x00, 0x00, 0x00, 0x01, 0x23, 0x45, 0x67, 0x89, ]; check_top_encode_decode(s, bytes_1); }