Fix message handling tests

The tests use the eon instead of the keyper config index in the eon
fields of messages. They also prevented messages with duplicate
identity preimages which are used in Shutterized Gnosis Chain.

Author: jannikluhn

rolling-shutter/keyper/epochkghandler/keyshare_test.go

@@ -32,6 +32,7 @@ func TestHandleDecryptionKeyShareIntegration(t *testing.T) {
 		identityPreimages = append(identityPreimages, identityPreimage)
 	}
 	keyperIndex := uint64(1)
+	keyperConfigIndex := uint64(1)
 
 	tkg := testsetup.InitializeEon(ctx, t, dbpool, config, keyperIndex)
 	var handler p2p.MessageHandler = &DecryptionKeyShareHandler{config: config, dbpool: dbpool}
@@ -52,7 +53,7 @@ func TestHandleDecryptionKeyShareIntegration(t *testing.T) {
 	}
 	msgs := p2ptest.MustHandleMessage(t, handler, ctx, &p2pmsg.DecryptionKeyShares{
 		InstanceID:  config.GetInstanceID(),
-		Eon:         config.GetEon(),
+		Eon:         keyperConfigIndex,
 		KeyperIndex: 0,
 		Shares:      shares,
 	})
@@ -70,7 +71,7 @@ func TestHandleDecryptionKeyShareIntegration(t *testing.T) {
 	}
 	msgs = p2ptest.MustHandleMessage(t, handler, ctx, &p2pmsg.DecryptionKeyShares{
 		InstanceID:  config.GetInstanceID(),
-		Eon:         config.GetEon(),
+		Eon:         keyperConfigIndex,
 		KeyperIndex: 2,
 		Shares:      shares,
 	})
@@ -96,7 +97,7 @@ func TestDecryptionKeyshareValidatorIntegration(t *testing.T) {
 	t.Cleanup(dbclose)
 
 	keyperIndex := uint64(1)
-	eon := config.GetEon()
+	keyperConfigIndex := uint64(1)
 	identityPreimage := identitypreimage.BigToIdentityPreimage(common.Big0)
 	secondIdentityPreimage := identitypreimage.BigToIdentityPreimage(common.Big1)
 	wrongIdentityPreimage := identitypreimage.BigToIdentityPreimage(common.Big2)
@@ -115,7 +116,7 @@ func TestDecryptionKeyshareValidatorIntegration(t *testing.T) {
 			validationResult: pubsub.ValidationAccept,
 			msg: &p2pmsg.DecryptionKeyShares{
 				InstanceID:  config.GetInstanceID(),
-				Eon:         eon,
+				Eon:         keyperConfigIndex,
 				KeyperIndex: keyperIndex,
 				Shares: []*p2pmsg.KeyShare{
 					{
@@ -134,7 +135,7 @@ func TestDecryptionKeyshareValidatorIntegration(t *testing.T) {
 			validationResult: pubsub.ValidationReject,
 			msg: &p2pmsg.DecryptionKeyShares{
 				InstanceID:  config.GetInstanceID(),
-				Eon:         eon,
+				Eon:         keyperConfigIndex,
 				KeyperIndex: keyperIndex,
 				Shares: []*p2pmsg.KeyShare{
 					{
@@ -149,7 +150,7 @@ func TestDecryptionKeyshareValidatorIntegration(t *testing.T) {
 			validationResult: pubsub.ValidationReject,
 			msg: &p2pmsg.DecryptionKeyShares{
 				InstanceID:  config.GetInstanceID() + 1,
-				Eon:         eon,
+				Eon:         keyperConfigIndex,
 				KeyperIndex: keyperIndex,
 				Shares: []*p2pmsg.KeyShare{
 					{
@@ -164,7 +165,7 @@ func TestDecryptionKeyshareValidatorIntegration(t *testing.T) {
 			validationResult: pubsub.ValidationReject,
 			msg: &p2pmsg.DecryptionKeyShares{
 				InstanceID:  config.GetInstanceID(),
-				Eon:         eon,
+				Eon:         keyperConfigIndex,
 				KeyperIndex: keyperIndex + 1,
 				Shares: []*p2pmsg.KeyShare{
 					{
@@ -179,36 +180,17 @@ func TestDecryptionKeyshareValidatorIntegration(t *testing.T) {
 			validationResult: pubsub.ValidationReject,
 			msg: &p2pmsg.DecryptionKeyShares{
 				InstanceID:  config.GetInstanceID(),
-				Eon:         eon,
+				Eon:         keyperConfigIndex,
 				KeyperIndex: keyperIndex,
 				Shares:      []*p2pmsg.KeyShare{},
 			},
 		},
-		{
-			name:             "invalid decryption key share duplicate",
-			validationResult: pubsub.ValidationReject,
-			msg: &p2pmsg.DecryptionKeyShares{
-				InstanceID:  config.GetInstanceID(),
-				Eon:         eon,
-				KeyperIndex: keyperIndex,
-				Shares: []*p2pmsg.KeyShare{
-					{
-						EpochID: identityPreimage.Bytes(),
-						Share:   keyshare,
-					},
-					{
-						EpochID: identityPreimage.Bytes(),
-						Share:   keyshare,
-					},
-				},
-			},
-		},
 		{
 			name:             "invalid decryption key share unordered",
 			validationResult: pubsub.ValidationReject,
 			msg: &p2pmsg.DecryptionKeyShares{
 				InstanceID:  config.GetInstanceID(),
-				Eon:         eon,
+				Eon:         keyperConfigIndex,
 				KeyperIndex: keyperIndex,
 				Shares: []*p2pmsg.KeyShare{
 					{