Hsiao-Wei Wang d27f2350a2
Update BLS test suite to BLS standard draft v2 format
1. Make sure that BLS -Verify APIs would only return `True` or `False` , no exceptions.
2. Use `eth2spec.utils.bls` instead of py_ecc for test generator
3. Add assertions in test generator
4. Add some special test cases for the -Verify APIs
5. Clean up the test format documents
2020-05-15 00:55:06 +08:00

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# Test format: BLS sign message
Message signing with BLS should produce a signature.
## Test case format
The test data is declared in a `data.yaml` file:
```yaml
input:
privkey: bytes32 -- the private key used for signing
message: bytes32 -- input message to sign (a hash)
output: bytes96 -- expected signature
```
All byte(s) fields are encoded as strings, hexadecimal encoding, prefixed with `0x`.