eth2.0-specs/tests/formats/bls/aggregate_verify.md

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# Test format: BLS sign message
Verify the signature against the given pubkeys and one messages.
## Test case format
The test data is declared in a `data.yaml` file:
```yaml
input:
pubkeys: List[BLS Pubkey] -- the pubkeys
messages: List[bytes32] -- the messages
signature: BLS Signature -- the signature to verify against pubkeys and messages
output: bool -- true (VALID) or false (INVALID)
```
- `BLS Pubkey` here is encoded as a string: hexadecimal encoding of 48 bytes (96 nibbles), prefixed with `0x`.
- `BLS Signature` here is encoded as a string: hexadecimal encoding of 96 bytes (192 nibbles), prefixed with `0x`.
All byte(s) fields are encoded as strings, hexadecimal encoding, prefixed with `0x`.
## Condition
The `aggregate_verify` handler should verify the signature with pubkeys and messages in the `input`, and the result should match the expected `output`.