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// Copyright 2025 The casbin Authors. All Rights Reserved.
//
// Licensed 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 (
"testing"
)
func testEnforceBLP(t *testing.T, e *Enforcer, sub string, subLevel float64, obj string, objLevel float64, act string, res bool) {
t.Helper()
if myRes, err := e.Enforce(sub, subLevel, obj, objLevel, act); err != nil {
t.Errorf("Enforce Error: %s", err)
} else if myRes != res {
t.Errorf("%s, %v, %s, %v, %s: %t, supposed to be %t", sub, subLevel, obj, objLevel, act, myRes, res)
}
}
func TestBLPModel(t *testing.T) {
e, _ := NewEnforcer("examples/blp_model.conf")
// Read operations: subject level >= object level
testEnforceBLP(t, e, "alice", 3, "data1", 1, "read", true)
testEnforceBLP(t, e, "bob", 2, "data2", 2, "read", true)
testEnforceBLP(t, e, "charlie", 1, "data1", 1, "read", true)
// Read violations: subject level < object level
testEnforceBLP(t, e, "bob", 2, "data3", 3, "read", false)
testEnforceBLP(t, e, "charlie", 1, "data2", 2, "read", false)
// Write operations: subject level <= object level
testEnforceBLP(t, e, "alice", 3, "data3", 3, "write", true)
testEnforceBLP(t, e, "bob", 2, "data3", 3, "write", true)
testEnforceBLP(t, e, "charlie", 1, "data2", 2, "write", true)
// Write violations: subject level > object level
testEnforceBLP(t, e, "alice", 3, "data1", 1, "write", false)
testEnforceBLP(t, e, "bob", 2, "data1", 1, "write", false)
}
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