types: fix formatting when printing signatures

- use cmn.Fingerprint and %X

types/proposal.go

@@ -4,6 +4,8 @@ import (
 	"errors"
 	"fmt"
 	"time"
+
+	cmn "github.com/tendermint/tendermint/libs/common"
 )
 
 var (
@@ -41,9 +43,10 @@ func NewProposal(height int64, round int, blockPartsHeader PartSetHeader, polRou
 
 // String returns a string representation of the Proposal.
 func (p *Proposal) String() string {
-	return fmt.Sprintf("Proposal{%v/%v %v (%v,%v) %v @ %s}",
+	return fmt.Sprintf("Proposal{%v/%v %v (%v,%v) %X @ %s}",
 		p.Height, p.Round, p.BlockPartsHeader, p.POLRound,
-		p.POLBlockID, p.Signature, CanonicalTime(p.Timestamp))
+		p.POLBlockID,
+		cmn.Fingerprint(p.Signature), CanonicalTime(p.Timestamp))
 }
 
 // SignBytes returns the Proposal bytes for signing

types/proposal_test.go

@@ -39,7 +39,7 @@ func TestProposalSignable(t *testing.T) {
 
 func TestProposalString(t *testing.T) {
 	str := testProposal.String()
-	expected := `Proposal{12345/23456 111:626C6F636B70 (-1,:0:000000000000) [] @ 2018-02-11T07:09:22.765Z}`
+	expected := `Proposal{12345/23456 111:626C6F636B70 (-1,:0:000000000000) 000000000000 @ 2018-02-11T07:09:22.765Z}`
 	if str != expected {
 		t.Errorf("Got unexpected string for Proposal. Expected:\n%v\nGot:\n%v", expected, str)
 	}

types/vote.go

@@ -61,14 +61,14 @@ type Address = cmn.HexBytes
 
 // Represents a prevote, precommit, or commit vote from validators for consensus.
 type Vote struct {
-	ValidatorAddress Address          `json:"validator_address"`
-	ValidatorIndex   int              `json:"validator_index"`
-	Height           int64            `json:"height"`
-	Round            int              `json:"round"`
-	Timestamp        time.Time        `json:"timestamp"`
-	Type             byte             `json:"type"`
-	BlockID          BlockID          `json:"block_id"` // zero if vote is nil.
-	Signature        []byte `json:"signature"`
+	ValidatorAddress Address   `json:"validator_address"`
+	ValidatorIndex   int       `json:"validator_index"`
+	Height           int64     `json:"height"`
+	Round            int       `json:"round"`
+	Timestamp        time.Time `json:"timestamp"`
+	Type             byte      `json:"type"`
+	BlockID          BlockID   `json:"block_id"` // zero if vote is nil.
+	Signature        []byte    `json:"signature"`
 }
 
 func (vote *Vote) SignBytes(chainID string) []byte {
@@ -98,10 +98,11 @@ func (vote *Vote) String() string {
 		cmn.PanicSanity("Unknown vote type")
 	}
 
-	return fmt.Sprintf("Vote{%v:%X %v/%02d/%v(%v) %X %v @ %s}",
+	return fmt.Sprintf("Vote{%v:%X %v/%02d/%v(%v) %X %X @ %s}",
 		vote.ValidatorIndex, cmn.Fingerprint(vote.ValidatorAddress),
 		vote.Height, vote.Round, vote.Type, typeString,
-		cmn.Fingerprint(vote.BlockID.Hash), vote.Signature,
+		cmn.Fingerprint(vote.BlockID.Hash),
+		cmn.Fingerprint(vote.Signature),
 		CanonicalTime(vote.Timestamp))
 }