prysm-pulse/slasher/detection/testing/utils.go
Raul Jordan 546196a6fa
Other Package Godocs for Prysm (#5681)
* e2e docs
* slasher docs
* Merge branch 'other-package-godocs' of github.com:prysmaticlabs/prysm into other-package-godocs
* all validator package comments
* Merge branch 'master' into other-package-godocs
* completed all other packages
* Merge branch 'master' into other-package-godocs
* Merge refs/heads/master into other-package-godocs
2020-04-29 21:32:39 +00:00

42 lines
1.0 KiB
Go

// Package testing includes useful helpers for slasher-related
// unit tests.
package testing
import (
"crypto/rand"
ethpb "github.com/prysmaticlabs/ethereumapis/eth/v1alpha1"
"github.com/prysmaticlabs/prysm/shared/params"
)
// SignedBlockHeader given slot, proposer index this function generates signed block header.
// with random bytes as its signature.
func SignedBlockHeader(slot uint64, proposerIdx uint64) (*ethpb.SignedBeaconBlockHeader, error) {
sig, err := genRandomSig()
if err != nil {
return nil, err
}
root := [32]byte{1, 2, 3}
return &ethpb.SignedBeaconBlockHeader{
Header: &ethpb.BeaconBlockHeader{
ProposerIndex: proposerIdx,
Slot: slot,
ParentRoot: root[:],
StateRoot: root[:],
BodyRoot: root[:],
},
Signature: sig,
}, nil
}
func genRandomSig() ([]byte, error) {
blk := make([]byte, 96)
_, err := rand.Read(blk)
return blk, err
}
// StartSlot returns the first slot of a given epoch.
func StartSlot(epoch uint64) uint64 {
return epoch * params.BeaconConfig().SlotsPerEpoch
}