snapshot of https://github.com/casbin/casbin.git (master, 2026-09-15; blobs > 131072B omitted)

transaction_adapter_test.go

@@ -0,0 +1,51 @@
+// Licensed to the Apache Software Foundation (ASF) under one
+// or more contributor license agreements.  See the NOTICE file
+// distributed with this work for additional information
+// regarding copyright ownership.  The ASF licenses this file
+// to you under the Apache License, Version 2.0 (the
+// "License"); you may not use this file except in compliance
+// with the License.  You may obtain a copy of the License at
+//
+//   http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing,
+// software distributed under the License is distributed on an
+// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+// KIND, either express or implied.  See the License for the
+// specific language governing permissions and limitations
+// under the License.
+
+package casbin
+
+import (
+	"context"
+	"testing"
+)
+
+// GetAdapter hands out the transaction scoped adapter, so the caller can run
+// its own database operations in the same transaction as the policy changes.
+// See https://github.com/casbin/casbin/issues/1706.
+func TestTransactionGetAdapter(t *testing.T) {
+	adapter := NewMockTransactionalAdapter()
+	e, err := NewTransactionalEnforcer("examples/rbac_model.conf", adapter)
+	if err != nil {
+		t.Fatalf("Failed to create transactional enforcer: %v", err)
+	}
+
+	err = e.WithTransaction(context.Background(), func(tx *Transaction) error {
+		// The adapter of the transaction, not the one of the enforcer: for a
+		// real adapter this is the one bound to the open database transaction.
+		if tx.GetAdapter() == nil {
+			t.Error("The transaction scoped adapter should be reachable")
+		}
+		_, addErr := tx.AddPolicy("admin", "data1", "read")
+		return addErr
+	})
+	if err != nil {
+		t.Fatalf("Failed to run transaction: %v", err)
+	}
+
+	if ok, err := e.HasPolicy("admin", "data1", "read"); err != nil || !ok {
+		t.Fatalf("The policy added in the transaction should be in effect, got %v, %v", ok, err)
+	}
+}