separate mock evidence from real evidence (#2571)

Closes #2525

types/block_test.go

@@ -3,6 +3,7 @@ package types
 import (
 	"crypto/rand"
 	"math"
+	"os"
 	"testing"
 	"time"
 
@@ -13,6 +14,13 @@ import (
 	cmn "github.com/tendermint/tendermint/libs/common"
 )
 
+func TestMain(m *testing.M) {
+	RegisterMockEvidences(cdc)
+
+	code := m.Run()
+	os.Exit(code)
+}
+
 func TestBlockAddEvidence(t *testing.T) {
 	txs := []Tx{Tx("foo"), Tx("bar")}
 	lastID := makeBlockIDRandom()

types/evidence.go

@@ -46,8 +46,9 @@ type Evidence interface {
 func RegisterEvidences(cdc *amino.Codec) {
 	cdc.RegisterInterface((*Evidence)(nil), nil)
 	cdc.RegisterConcrete(&DuplicateVoteEvidence{}, "tendermint/DuplicateVoteEvidence", nil)
+}
 
-	// mocks
+func RegisterMockEvidences(cdc *amino.Codec) {
 	cdc.RegisterConcrete(MockGoodEvidence{}, "tendermint/MockGoodEvidence", nil)
 	cdc.RegisterConcrete(MockBadEvidence{}, "tendermint/MockBadEvidence", nil)
 }

types/wire.go

@@ -1,7 +1,7 @@
 package types
 
 import (
-	"github.com/tendermint/go-amino"
+	amino "github.com/tendermint/go-amino"
 	"github.com/tendermint/tendermint/crypto/encoding/amino"
 )
 
@@ -15,3 +15,8 @@ func RegisterBlockAmino(cdc *amino.Codec) {
 	cryptoAmino.RegisterAmino(cdc)
 	RegisterEvidences(cdc)
 }
+
+// GetCodec returns a codec used by the package. For testing purposes only.
+func GetCodec() *amino.Codec {
+	return cdc
+}