Fix TestP20MetaTransaction test

Author: urvisavla

services/horizon/internal/integration/transaction_test.go

@@ -67,7 +67,6 @@ func TestP19MetaDisabledTransaction(t *testing.T) {
 }
 
 func TestP20MetaTransaction(t *testing.T) {
-	return
 	itest := integration.NewTest(t, integration.Config{
 		EnableStellarRPC: true,
 	})
@@ -86,10 +85,22 @@ func TestP20MetaTransaction(t *testing.T) {
 	err = xdr.SafeUnmarshalBase64(clientTx.ResultMetaXdr, &txMetaResult)
 	require.NoError(t, err)
 
-	assert.Greater(t, len(txMetaResult.MustV3().Operations), 0)
-	assert.NotNil(t, txMetaResult.MustV3().SorobanMeta)
-	assert.Greater(t, len(txMetaResult.MustV3().TxChangesAfter), 0)
-	assert.Greater(t, len(txMetaResult.MustV3().TxChangesBefore), 0)
+	switch txMetaResult.V {
+	case 3:
+		assert.Greater(t, len(txMetaResult.MustV3().Operations), 0)
+		assert.NotNil(t, txMetaResult.MustV3().SorobanMeta)
+		assert.Greater(t, len(txMetaResult.MustV3().TxChangesAfter), 0)
+		assert.Greater(t, len(txMetaResult.MustV3().TxChangesBefore), 0)
+	case 4:
+		assert.Greater(t, len(txMetaResult.MustV4().Operations), 0)
+		assert.NotNil(t, txMetaResult.MustV4().SorobanMeta)
+		// Soroban fee refund was moved from txChangesAfter to postTxApplyFeeProcessing in LedgerCloseMetaV2
+		//assert.Greater(t, len(txMetaResult.MustV4().TxChangesAfter), 0)
+		assert.Greater(t, len(txMetaResult.MustV4().TxChangesBefore), 0)
+	default:
+		itest.CurrentTest().Fatalf("Invalid meta version: %d", txMetaResult.V)
+	}
+
 }
 
 func TestP20MetaDisabledTransaction(t *testing.T) {