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

enforcer_cached_synced_test.go

@@ -0,0 +1,85 @@
+// 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 (
+	"sync"
+	"testing"
+	"time"
+)
+
+func testSyncEnforceCache(t *testing.T, e *SyncedCachedEnforcer, sub string, obj interface{}, act string, res bool) {
+	t.Helper()
+	if myRes, _ := e.Enforce(sub, obj, act); myRes != res {
+		t.Errorf("%s, %v, %s: %t, supposed to be %t", sub, obj, act, myRes, res)
+	}
+}
+
+func TestSyncCache(t *testing.T) {
+	e, _ := NewSyncedCachedEnforcer("examples/basic_model.conf", "examples/basic_policy.csv")
+	e.expireTime = time.Millisecond
+	// The cache is enabled by default for NewCachedEnforcer.
+	g := sync.WaitGroup{}
+	goThread := 1000
+	g.Add(goThread)
+	for i := 0; i < goThread; i++ {
+		go func() {
+			_, _ = e.AddPolicy("alice", "data2", "read")
+			testSyncEnforceCache(t, e, "alice", "data2", "read", true)
+			if e.InvalidateCache() != nil {
+				panic("never reached")
+			}
+			g.Done()
+		}()
+	}
+	g.Wait()
+	_, _ = e.RemovePolicy("alice", "data2", "read")
+
+	testSyncEnforceCache(t, e, "alice", "data1", "read", true)
+	time.Sleep(time.Millisecond * 2) // coverage for expire
+	testSyncEnforceCache(t, e, "alice", "data1", "read", true)
+
+	testSyncEnforceCache(t, e, "alice", "data1", "write", false)
+	testSyncEnforceCache(t, e, "alice", "data2", "read", false)
+	testSyncEnforceCache(t, e, "alice", "data2", "write", false)
+	// The cache is enabled, calling RemovePolicy, LoadPolicy or RemovePolicies will
+	// also operate cached items.
+	_, _ = e.RemovePolicy("alice", "data1", "read")
+
+	testSyncEnforceCache(t, e, "alice", "data1", "read", false)
+	testSyncEnforceCache(t, e, "alice", "data1", "write", false)
+	testSyncEnforceCache(t, e, "alice", "data2", "read", false)
+	testSyncEnforceCache(t, e, "alice", "data2", "write", false)
+
+	e, _ = NewSyncedCachedEnforcer("examples/rbac_model.conf", "examples/rbac_policy.csv")
+
+	testSyncEnforceCache(t, e, "alice", "data1", "read", true)
+	testSyncEnforceCache(t, e, "bob", "data2", "write", true)
+	testSyncEnforceCache(t, e, "alice", "data2", "read", true)
+	testSyncEnforceCache(t, e, "alice", "data2", "write", true)
+
+	_, _ = e.RemovePolicies([][]string{
+		{"alice", "data1", "read"},
+		{"bob", "data2", "write"},
+	})
+
+	testSyncEnforceCache(t, e, "alice", "data1", "read", false)
+	testSyncEnforceCache(t, e, "bob", "data2", "write", false)
+	testSyncEnforceCache(t, e, "alice", "data2", "read", true)
+	testSyncEnforceCache(t, e, "alice", "data2", "write", true)
+}