Revert "delete everything" (includes everything non-go-crypto)

This reverts commit 96a3502

types/heartbeat_test.go

@@ -0,0 +1,54 @@
+package types
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/require"
+
+	"github.com/tendermint/tendermint/crypto"
+)
+
+func TestHeartbeatCopy(t *testing.T) {
+	hb := &Heartbeat{ValidatorIndex: 1, Height: 10, Round: 1}
+	hbCopy := hb.Copy()
+	require.Equal(t, hbCopy, hb, "heartbeat copy should be the same")
+	hbCopy.Round = hb.Round + 10
+	require.NotEqual(t, hbCopy, hb, "heartbeat copy mutation should not change original")
+
+	var nilHb *Heartbeat
+	nilHbCopy := nilHb.Copy()
+	require.Nil(t, nilHbCopy, "copy of nil should also return nil")
+}
+
+func TestHeartbeatString(t *testing.T) {
+	var nilHb *Heartbeat
+	require.Contains(t, nilHb.String(), "nil", "expecting a string and no panic")
+
+	hb := &Heartbeat{ValidatorIndex: 1, Height: 11, Round: 2}
+	require.Equal(t, hb.String(), "Heartbeat{1:000000000000 11/02 (0) <nil>}")
+
+	var key crypto.PrivKeyEd25519
+	sig, err := key.Sign([]byte("Tendermint"))
+	require.NoError(t, err)
+	hb.Signature = sig
+
+	require.Equal(t, hb.String(), "Heartbeat{1:000000000000 11/02 (0) /FF41E371B9BF.../}")
+}
+
+func TestHeartbeatWriteSignBytes(t *testing.T) {
+
+	hb := &Heartbeat{ValidatorIndex: 1, Height: 10, Round: 1}
+	bz := hb.SignBytes("0xdeadbeef")
+	// XXX HMMMMMMM
+	require.Equal(t, string(bz), `{"@chain_id":"0xdeadbeef","@type":"heartbeat","height":"10","round":"1","sequence":"0","validator_address":"","validator_index":"1"}`)
+
+	plainHb := &Heartbeat{}
+	bz = plainHb.SignBytes("0xdeadbeef")
+	require.Equal(t, string(bz), `{"@chain_id":"0xdeadbeef","@type":"heartbeat","height":"0","round":"0","sequence":"0","validator_address":"","validator_index":"0"}`)
+
+	require.Panics(t, func() {
+		var nilHb *Heartbeat
+		bz := nilHb.SignBytes("0xdeadbeef")
+		require.Equal(t, string(bz), "null")
+	})
+}