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Allow empty values in the storage (#6364)

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* Allow empty values in the storage

* Bump trie-bench

* Bump trie-bench
This commit is contained in:
Arkadiy Paronyan
2020-06-18 09:36:52 +02:00
committed by GitHub
parent a43a755a91
commit f05ae63afa
8 changed files with 53 additions and 16 deletions
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substrate/primitives/state-machine/src/lib.rs
+36
View File
@@ -1306,4 +1306,40 @@ mod tests {
}
assert!(!duplicate);
}
#[test]
fn set_storage_empty_allowed() {
let initial: BTreeMap<_, _> = map![
b"aaa".to_vec() => b"0".to_vec(),
b"bbb".to_vec() => b"".to_vec()
];
let mut state = InMemoryBackend::<BlakeTwo256>::from(initial);
let backend = state.as_trie_backend().unwrap();
let mut overlay = OverlayedChanges::default();
overlay.set_storage(b"ccc".to_vec(), Some(b"".to_vec()));
assert_eq!(overlay.storage(b"ccc"), Some(Some(&[][..])));
overlay.commit_prospective();
assert_eq!(overlay.storage(b"ccc"), Some(Some(&[][..])));
assert_eq!(overlay.storage(b"bbb"), None);
{
let mut offchain_overlay = Default::default();
let mut cache = StorageTransactionCache::default();
let mut ext = Ext::new(
&mut overlay,
&mut offchain_overlay,
&mut cache,
backend,
changes_trie::disabled_state::<_, u64>(),
None,
);
assert_eq!(ext.storage(b"bbb"), Some(vec![]));
assert_eq!(ext.storage(b"ccc"), Some(vec![]));
ext.clear_storage(b"ccc");
assert_eq!(ext.storage(b"ccc"), None);
}
overlay.commit_prospective();
assert_eq!(overlay.storage(b"ccc"), Some(None));
}
}
substrate/primitives/state-machine/src/testing.rs
+3 -3
View File
@@ -242,7 +242,7 @@ impl<H, N> sp_externalities::ExtensionStore for TestExternalities<H, N> where
#[cfg(test)]
mod tests {
use super::*;
use sp_core::traits::Externalities;
use sp_core::{H256, traits::Externalities};
use sp_runtime::traits::BlakeTwo256;
use hex_literal::hex;
@@ -253,8 +253,8 @@ mod tests {
ext.set_storage(b"doe".to_vec(), b"reindeer".to_vec());
ext.set_storage(b"dog".to_vec(), b"puppy".to_vec());
ext.set_storage(b"dogglesworth".to_vec(), b"cat".to_vec());
const ROOT: [u8; 32] = hex!("555d4777b52e9196e3f6373c556cc661e79cd463f881ab9e921e70fc30144bf4");
assert_eq!(&ext.storage_root()[..], &ROOT);
let root = H256::from(hex!("2a340d3dfd52f5992c6b117e9e45f479e6da5afffafeb26ab619cf137a95aeb8"));
assert_eq!(H256::from_slice(ext.storage_root().as_slice()), root);
}
#[test]