Macro strict_encoding::test_encoding_enum [−][src]
macro_rules! test_encoding_enum { ($enum:path as $ty:ty; $( $item:path => $val:expr ),+) => { ... }; ($se:ident => $enum:path as $ty:ty; $( $item:path => $val:expr ),+) => { ... }; }
Expand description
Macro testing encodings of all enum variants.
NB: If the enum has primitive assigned values,
test_encoding_enum_by_values
should be used instead if this macro. If
primitive values are u8
-based, please use
test_encoding_enum_u8_exhaustive
.
Macro expands into an expression of Result<(),
EnumEncodingTestFailure
>
type.
Covered test case
- Strict encoding must match little-endian encoding of the value
- Roundtrip encoding-decoding of the enum variant must result in the original value
Example
#[derive(Copy, Clone, Ord, PartialOrd, Eq, PartialEq, Debug)] #[repr(u8)] #[derive(StrictEncode, StrictDecode)] #[strict_encoding(repr = u8)] enum Bits { #[strict_encoding(value = 8)] Bit8, #[strict_encoding(value = 16)] Bit16, } test_encoding_enum!( Bits as u8; Bits::Bit8 => 8_u8, Bits::Bit16 => 16_u8 ).unwrap();