errors: Use `errors.Is()` for error comparisons

Similar to the previous commit, fix the remaining error comparisons
manually to use errors.Is().

2 files changed, 4 insertions, 2 deletions

diff --git a/internal/praefect/nodes/sql_elector_test.go b/internal/praefect/nodes/sql_elector_test.go
index 6c42f8a97..135c03b84 100644
--- a/internal/praefect/nodes/sql_elector_test.go
+++ b/internal/praefect/nodes/sql_elector_test.go
@@ -2,6 +2,7 @@ package nodes
 
 import (
 	"context"
+	"errors"
 	"net"
 	"testing"
 	"time"
@@ -435,7 +436,7 @@ func TestConnectionMultiplexing(t *testing.T) {
 		grpc.Creds(lm),
 		grpc.UnknownServiceHandler(func(srv interface{}, stream grpc.ServerStream) error {
 			_, err := backchannel.GetPeerID(stream.Context())
-			if err == backchannel.ErrNonMultiplexedConnection {
+			if errors.Is(err, backchannel.ErrNonMultiplexedConnection) {
 				return errNonMuxed
 			}
 
diff --git a/internal/praefect/testserver.go b/internal/praefect/testserver.go
index 835b5377d..fc4eb083d 100644
--- a/internal/praefect/testserver.go
+++ b/internal/praefect/testserver.go
@@ -2,6 +2,7 @@ package praefect
 
 import (
 	"context"
+	"errors"
 	"fmt"
 	"net"
 	"testing"
@@ -153,7 +154,7 @@ func newMockDownstream(tb testing.TB, token string, registerService func(*grpc.S
 
 		// If the server is shutdown before Serve() is called on it
 		// the Serve() calls will return the ErrServerStopped
-		if err := <-errQ; err != nil && err != grpc.ErrServerStopped {
+		if err := <-errQ; err != nil && !errors.Is(err, grpc.ErrServerStopped) {
 			require.NoError(tb, err)
 		}
 	}