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Add starts_with to v0 and v1 MultiLocation #6311

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Nov 20, 2022
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Add starts_with to v0 and v1 MultiLocation #6311

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fe6fe32
add `starts_with` to v0 and v1 MultiLocation
joepetrowski Nov 18, 2022
4ce52fe
add tests
joepetrowski Nov 19, 2022
99459db
fmt
joepetrowski Nov 19, 2022
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add tests
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@joepetrowski
joepetrowski committed Nov 19, 2022
commit 4ce52fe438f94c7d879988e2be1903d649a11c7c
18 changes: 18 additions & 0 deletions xcm/src/v0/multi_location.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -614,6 +614,24 @@ mod tests {
assert_eq!(m.match_and_split(&m), None);
}

#[test]
fn starts_with_works() {
let full = X3(Parent, Parachain(1000), AccountIndex64 { network: Any, index: 23 });
let identity = full.clone();
let prefix = X2(Parent, Parachain(1000));
let wrong_parachain = X2(Parent, Parachain(1001));
let wrong_account = X3(Parent, Parachain(1000), AccountIndex64 { network: Any, index: 24 });
let no_parents = X1(Parachain(1000));
let too_many_parents = X3(Parent, Parent, Parachain(1000));

assert!(full.starts_with(&identity));
assert!(full.starts_with(&prefix));
assert!(!full.starts_with(&wrong_parachain));
assert!(!full.starts_with(&wrong_account));
assert!(!full.starts_with(&no_parents));
assert!(!full.starts_with(&too_many_parents));
}

#[test]
fn append_with_works() {
let acc = AccountIndex64 { network: Any, index: 23 };
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18 changes: 18 additions & 0 deletions xcm/src/v1/multilocation.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -961,6 +961,24 @@ mod tests {
assert_eq!(m.match_and_split(&m), None);
}

#[test]
fn starts_with_works() {
let full: MultiLocation = (Parent, Parachain(1000), AccountId32 { network: Any, id: [0; 32] }).into();
let identity: MultiLocation = full.clone();
let prefix: MultiLocation = (Parent, Parachain(1000)).into();
let wrong_parachain: MultiLocation = (Parent, Parachain(1001)).into();
let wrong_account: MultiLocation = (Parent, Parachain(1000), AccountId32 { network: Any, id: [1; 32] }).into();
let no_parents: MultiLocation = (Parachain(1000)).into();
let too_many_parents: MultiLocation = (Parent, Parent, Parachain(1000)).into();

assert!(full.starts_with(&identity));
assert!(full.starts_with(&prefix));
assert!(!full.starts_with(&wrong_parachain));
assert!(!full.starts_with(&wrong_account));
assert!(!full.starts_with(&no_parents));
assert!(!full.starts_with(&too_many_parents));
}

#[test]
fn append_with_works() {
let acc = AccountIndex64 { network: Any, index: 23 };
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