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Add support for SSZ union type via Option

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This commit is contained in:
Paul Hauner
2019-06-04 12:03:54 +10:00
parent 7005234fd1
commit 7a2ab2e9aa
5 changed files with 141 additions and 1 deletions
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63
eth2/utils/ssz/tests/tests.rs
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@@ -276,7 +276,7 @@ mod round_trip {
fn offsets_decreasing() {
let bytes = vec![
// 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
// | offset | ofset | offset | variable
// | offset | offset | offset | variable
01, 00, 14, 00, 00, 00, 15, 00, 00, 00, 14, 00, 00, 00, 00, 00,
];
@@ -285,4 +285,65 @@ mod round_trip {
Err(DecodeError::OutOfBoundsByte { i: 14 })
);
}
#[derive(Debug, PartialEq, Encode, Decode)]
struct TwoVariableLenOptions {
a: u16,
b: Option<u16>,
c: Option<Vec<u16>>,
d: Option<Vec<u16>>,
}
#[test]
fn two_variable_len_options_encoding() {
let s = TwoVariableLenOptions {
a: 42,
b: None,
c: Some(vec![0]),
d: None,
};
let bytes = vec![
// 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21
// | option<u16> | offset | offset | option<u16 | 1st list
42, 00, 14, 00, 00, 00, 18, 00, 00, 00, 24, 00, 00, 00, 00, 00, 00, 00, 01, 00, 00, 00,
// 23 24 25 26 27
// | 2nd list
00, 00, 00, 00, 00, 00
];
assert_eq!(s.as_ssz_bytes(), bytes);
}
#[test]
fn two_variable_len_options_round_trip() {
let vec: Vec<TwoVariableLenOptions> = vec![
TwoVariableLenOptions {
a: 42,
b: Some(12),
c: Some(vec![0]),
d: Some(vec![1]),
},
TwoVariableLenOptions {
a: 42,
b: Some(12),
c: Some(vec![0]),
d: None,
},
TwoVariableLenOptions {
a: 42,
b: None,
c: Some(vec![0]),
d: None,
},
TwoVariableLenOptions {
a: 42,
b: None,
c: None,
d: None,
},
];
round_trip(vec);
}
}