Replace UnmarshalJSON() with UnmarshalText() for transaction statuses (#2220)

* Replace UnmarshalJSON() with UnmarshalText() for transaction statuses

UnmarshalText avoids issues with forgetting quotes in JSON, making it simpler for parsing plain text values.

Author: kirugan

starknet/transaction.go

@@ -16,16 +16,16 @@ const (
 	Rejected
 )
 
-func (es *ExecutionStatus) UnmarshalJSON(data []byte) error {
-	switch string(data) {
-	case `"SUCCEEDED"`:
+func (es *ExecutionStatus) UnmarshalText(data []byte) error {
+	switch str := string(data); str {
+	case "SUCCEEDED":
 		*es = Succeeded
-	case `"REVERTED"`:
+	case "REVERTED":
 		*es = Reverted
-	case `"REJECTED"`:
+	case "REJECTED":
 		*es = Rejected
 	default:
-		return errors.New("unknown ExecutionStatus")
+		return fmt.Errorf("unknown ExecutionStatus %q", str)
 	}
 	return nil
 }
@@ -39,18 +39,18 @@ const (
 	Received
 )
 
-func (fs *FinalityStatus) UnmarshalJSON(data []byte) error {
-	switch string(data) {
-	case `"ACCEPTED_ON_L2"`:
+func (fs *FinalityStatus) UnmarshalText(data []byte) error {
+	switch str := string(data); str {
+	case "ACCEPTED_ON_L2":
 		*fs = AcceptedOnL2
-	case `"ACCEPTED_ON_L1"`:
+	case "ACCEPTED_ON_L1":
 		*fs = AcceptedOnL1
-	case `"NOT_RECEIVED"`:
+	case "NOT_RECEIVED":
 		*fs = NotReceived
-	case `"RECEIVED"`:
+	case "RECEIVED":
 		*fs = Received
 	default:
-		return errors.New("unknown FinalityStatus")
+		return fmt.Errorf("unknown FinalityStatus %q", str)
 	}
 	return nil
 }
@@ -83,24 +83,24 @@ func (t TransactionType) String() string {
 	}
 }
 
-func (t TransactionType) MarshalJSON() ([]byte, error) {
-	return []byte(fmt.Sprintf("%q", t)), nil
+func (t TransactionType) MarshalText() ([]byte, error) {
+	return []byte(t.String()), nil
 }
 
-func (t *TransactionType) UnmarshalJSON(data []byte) error {
-	switch string(data) {
-	case `"DECLARE"`:
+func (t *TransactionType) UnmarshalText(data []byte) error {
+	switch str := string(data); str {
+	case "DECLARE":
 		*t = TxnDeclare
-	case `"DEPLOY"`:
+	case "DEPLOY":
 		*t = TxnDeploy
-	case `"DEPLOY_ACCOUNT"`:
+	case "DEPLOY_ACCOUNT":
 		*t = TxnDeployAccount
-	case `"INVOKE"`, `"INVOKE_FUNCTION"`:
+	case "INVOKE", "INVOKE_FUNCTION":
 		*t = TxnInvoke
-	case `"L1_HANDLER"`:
+	case "L1_HANDLER":
 		*t = TxnL1Handler
 	default:
-		return errors.New("unknown TransactionType")
+		return fmt.Errorf("unknown TransactionType %q", str)
 	}
 	return nil
 }
@@ -139,14 +139,6 @@ func (r Resource) MarshalText() ([]byte, error) {
 	}
 }
 
-func (r Resource) MarshalJSON() ([]byte, error) {
-	result, err := r.MarshalText()
-	if err != nil {
-		return nil, err
-	}
-	return []byte(`"` + string(result) + `"`), nil
-}
-
 type DataAvailabilityMode uint32
 
 const (

starknet/transaction_test.go

@@ -1,6 +1,7 @@
 package starknet_test
 
 import (
+	"encoding/json"
 	"testing"
 
 	"github.com/NethermindEth/juno/starknet"
@@ -10,22 +11,35 @@ import (
 
 func TestUnmarshalExecutionStatus(t *testing.T) {
 	es := new(starknet.ExecutionStatus)
-	require.NoError(t, es.UnmarshalJSON([]byte(`"SUCCEEDED"`)))
-	assert.Equal(t, starknet.Succeeded, *es)
 
-	require.NoError(t, es.UnmarshalJSON([]byte(`"REVERTED"`)))
-	assert.Equal(t, starknet.Reverted, *es)
-
-	require.ErrorContains(t, es.UnmarshalJSON([]byte("ABC")), "unknown ExecutionStatus")
+	cases := map[string]starknet.ExecutionStatus{
+		"SUCCEEDED": starknet.Succeeded,
+		"REVERTED":  starknet.Reverted,
+		"REJECTED":  starknet.Rejected,
+	}
+	for str, expected := range cases {
+		quotedStr := `"` + str + `"`
+		require.NoError(t, json.Unmarshal([]byte(quotedStr), es))
+		assert.Equal(t, expected, *es)
+	}
+
+	require.ErrorContains(t, json.Unmarshal([]byte(`"ABC"`), es), "unknown ExecutionStatus")
 }
 
 func TestUnmarshalFinalityStatus(t *testing.T) {
 	fs := new(starknet.FinalityStatus)
-	require.NoError(t, fs.UnmarshalJSON([]byte(`"ACCEPTED_ON_L1"`)))
-	assert.Equal(t, starknet.AcceptedOnL1, *fs)
-
-	require.NoError(t, fs.UnmarshalJSON([]byte(`"ACCEPTED_ON_L2"`)))
-	assert.Equal(t, starknet.AcceptedOnL2, *fs)
 
-	require.ErrorContains(t, fs.UnmarshalJSON([]byte("ABC")), "unknown FinalityStatus")
+	cases := map[string]starknet.FinalityStatus{
+		"ACCEPTED_ON_L2": starknet.AcceptedOnL2,
+		"ACCEPTED_ON_L1": starknet.AcceptedOnL1,
+		"NOT_RECEIVED":   starknet.NotReceived,
+		"RECEIVED":       starknet.Received,
+	}
+	for str, expected := range cases {
+		quotedStr := `"` + str + `"`
+		require.NoError(t, json.Unmarshal([]byte(quotedStr), fs))
+		assert.Equal(t, expected, *fs)
+	}
+
+	require.ErrorContains(t, json.Unmarshal([]byte(`"ABC"`), fs), "unknown FinalityStatus")
 }