Fix small suggestions

op-challenger/game/fault/trace/outputs/provider.go

@@ -63,7 +63,6 @@ func (o *OutputTraceProvider) Get(ctx context.Context, traceIndex uint64) (commo
 }
 
 // AbsolutePreStateCommitment returns the absolute prestate at the configured prestateBlock.
-// For Optimism Mainnet, this is the first block after bedrock.
 func (o *OutputTraceProvider) AbsolutePreStateCommitment(ctx context.Context) (hash common.Hash, err error) {
 	output, err := o.rollupClient.OutputAtBlock(ctx, o.prestateBlock)
 	if err != nil {

op-challenger/game/fault/trace/outputs/provider_test.go

@@ -22,6 +22,18 @@ var (
 )
 
 func TestGet(t *testing.T) {
+	t.Run("PrePrestateErrors", func(t *testing.T) {
+		provider, _ := setupWithTestData(t, 0, poststateBlock)
+		_, err := provider.Get(context.Background(), 0)
+		require.ErrorAs(t, fmt.Errorf("no output at block %d", 1), &err)
+	})
+
+	t.Run("MisconfiguredPoststateErrors", func(t *testing.T) {
+		provider, _ := setupWithTestData(t, 0, 0)
+		_, err := provider.Get(context.Background(), 0)
+		require.ErrorAs(t, fmt.Errorf("no output at block %d", 0), &err)
+	})
+
 	t.Run("FirstBlockAfterPrestate", func(t *testing.T) {
 		provider, _ := setupWithTestData(t, prestateBlock, poststateBlock)
 		value, err := provider.Get(context.Background(), 0)