fix(lib/grandpa): avoid spamming round messages

.github/workflows/integration-tests.yml

@@ -28,6 +28,7 @@ jobs:
             github.com/ChainSafe/gossamer/dot/rpc/modules,
             github.com/ChainSafe/gossamer/lib/babe,
             github.com/ChainSafe/gossamer/dot/sync,
+            github.com/ChainSafe/gossamer/lib/grandpa,
           ]
     runs-on: ubuntu-latest
     steps:

lib/grandpa/errors.go

@@ -5,16 +5,10 @@ package grandpa
 
 import (
 	"errors"
-	"fmt"
 
 	"github.com/ChainSafe/gossamer/lib/blocktree"
 )
 
-// errRoundMismatch is returned when trying to validate a vote message that isn't for the current round
-func errRoundMismatch(got, want uint64) error {
-	return fmt.Errorf("rounds do not match: got %d, want %d", got, want)
-}
-
 var (
 	// ErrBlockDoesNotExist is returned when trying to validate a vote for a block that doesn't exist
 	ErrBlockDoesNotExist = errors.New("block does not exist")
@@ -60,6 +54,8 @@ var (
 
 	ErrBlockHashMismatch = errors.New("block hash does not correspond to given block number")
 
+	ErrBlockNumbersMismatch = errors.New("block numbers mismatch")
+
 	// ErrMinVotesNotMet is returned when the number of votes is less than the required minimum in a Justification
 	ErrMinVotesNotMet = errors.New("minimum number of votes not met in a Justification")
 
@@ -76,9 +72,6 @@ var (
 	// ErrCatchUpResponseNotCompletable is returned when the round represented by the catch up response is not completable
 	ErrCatchUpResponseNotCompletable = errors.New("catch up response is not completable")
 
-	// ErrServicePaused is returned if the service is paused and waiting for catch up messages
-	ErrServicePaused = errors.New("service is paused")
-
 	// ErrPrecommitSignatureMismatch is returned when the number of precommits
 	// and signatures in a CommitMessage do not match
 	ErrPrecommitSignatureMismatch = errors.New("number of precommits does not match number of signatures")
@@ -93,4 +86,6 @@ var (
 	errVoteToSignatureMismatch = errors.New("votes and authority count mismatch")
 	errVoteBlockMismatch       = errors.New("block in vote is not descendant of previously finalised block")
 	errVoteFromSelf            = errors.New("got vote from ourselves")
+	errRoundOutOfBounds        = errors.New("round out of bounds")
+	errRoundsMismatch          = errors.New("rounds mismatch")
 )