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# Single leaf merkle proof tests
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This series of tests provides reference test vectors for validating correct
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generation and verification of merkle proofs based on static data.
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## Test case format
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Tests for each individual SSZ type are grouped into a `suite` indicating the SSZ type name.
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2024-03-28 13:48:52 +00:00
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### `object.ssz_snappy`
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A SSZ-snappy encoded object from which other data is generated. The SSZ type can be determined from the test `suite` name.
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### `proof.yaml`
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A proof of the leaf value (a merkle root) at generalized-index `leaf_index` in the given `object`.
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```yaml
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leaf: Bytes32 # string, hex encoded, with 0x prefix
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leaf_index: int # integer, decimal
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branch: list of Bytes32 # list, each element is a string, hex encoded, with 0x prefix
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```
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## Condition
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A test-runner can implement the following assertions:
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- Check that `is_valid_merkle_branch` confirms `leaf` at `leaf_index` to verify
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against `hash_tree_root(object)` and `branch`.
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- If the implementation supports generating merkle proofs, check that the
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self-generated proof matches the `branch` provided with the test.
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