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TrieTestHarness

reth_trie::test_utils

Struct TrieTestHarness 

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pub struct TrieTestHarness { /* private fields */ }
Available on crate features test-utils only.
Expand description

General-purpose test harness for storage trie tests.

Manages a base storage dataset, computes expected roots via StorageRoot, and generates V2 proofs via StorageProofCalculator using mock cursors.

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impl TrieTestHarness

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pub fn new(storage: BTreeMap<B256, U256>) -> Self

Creates a new test harness from a map of hashed storage slots to values.

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pub fn get_root_with_updates( &self, changeset: &BTreeMap<B256, U256>, ) -> (B256, StorageTrieUpdates)

Computes the storage root and trie updates after applying the given changeset on top of the current base storage.

Builds a HashedPostStateCursorFactory overlay, derives a prefix set from the changeset keys, and passes both into StorageRoot::new_hashed.

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pub fn apply_changeset(&mut self, changeset: BTreeMap<B256, U256>)

Merges changeset into the base storage (zero values remove entries) and rebuilds the harness from scratch with the resulting storage.

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pub const fn hashed_address(&self) -> B256

Returns the hashed address used for all storage trie operations.

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pub const fn storage(&self) -> &BTreeMap<B256, U256>

Returns a reference to the base storage dataset.

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pub const fn original_root(&self) -> B256

Returns the expected storage root.

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pub const fn storage_trie_updates(&self) -> &StorageTrieUpdates

Returns a reference to the storage trie updates.

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pub fn set_trie_nodes( &mut self, trie_nodes: BTreeMap<Nibbles, BranchNodeCompact>, )

Replaces the trie cursor factory with one backed by the given trie nodes.

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pub fn trie_cursor_factory(&self) -> MockTrieCursorFactory

Returns a clone of the mock trie cursor factory.

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pub fn hashed_cursor_factory(&self) -> MockHashedCursorFactory

Returns a clone of the mock hashed cursor factory.

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pub fn root_node(&self) -> ProofTrieNodeV2

Obtains the root node of the storage trie via StorageProofCalculator.

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pub fn proof_v2( &self, targets: &mut [ProofV2Target], ) -> (Vec<ProofTrieNodeV2>, Option<B256>)

Generates storage proofs for the given targets using StorageProofCalculator.

Also computes and returns the root hash (if the proof contains a root node) by reusing the calculator after the proof call.

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pub fn minimize_trie_updates(&self, updates: &mut StorageTrieUpdates)

Removes all entries from updates that are redundant with the starting storage trie updates.

A storage node is redundant if it exists in the starting set with the same value. A removed node is redundant if it was already absent from the starting set. The is_deleted flag is cleared if it matches the starting value.

Trait Implementations§

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impl Debug for TrieTestHarness

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more

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Size: 208 bytes