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

persist/file-adapter/adapter_mock.go

@@ -0,0 +1,125 @@
+// 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 fileadapter
+
+import (
+	"bufio"
+	"errors"
+	"io"
+	"os"
+	"strings"
+
+	"github.com/casbin/casbin/v3/model"
+	"github.com/casbin/casbin/v3/persist"
+)
+
+// AdapterMock is the file adapter for Casbin.
+// It can load policy from file or save policy to file.
+type AdapterMock struct {
+	filePath   string
+	errorValue string
+}
+
+// NewAdapterMock is the constructor for AdapterMock.
+func NewAdapterMock(filePath string) *AdapterMock {
+	a := AdapterMock{}
+	a.filePath = filePath
+	return &a
+}
+
+// LoadPolicy loads all policy rules from the storage.
+func (a *AdapterMock) LoadPolicy(model model.Model) error {
+	err := a.loadPolicyFile(model, persist.LoadPolicyLine)
+	return err
+}
+
+// SavePolicy saves all policy rules to the storage.
+func (a *AdapterMock) SavePolicy(model model.Model) error {
+	return nil
+}
+
+func (a *AdapterMock) loadPolicyFile(model model.Model, handler func(string, model.Model) error) error {
+	f, err := os.Open(a.filePath)
+	if err != nil {
+		return err
+	}
+	defer f.Close()
+
+	buf := bufio.NewReader(f)
+	for {
+		line, err := buf.ReadString('\n')
+		line = strings.TrimSpace(line)
+		if err2 := handler(line, model); err2 != nil {
+			return err2
+		}
+		if err != nil {
+			if err == io.EOF {
+				return nil
+			}
+			return err
+		}
+	}
+}
+
+// SetMockErr sets string to be returned by of the mock during testing.
+func (a *AdapterMock) SetMockErr(errorToSet string) {
+	a.errorValue = errorToSet
+}
+
+// GetMockErr returns a mock error or nil.
+func (a *AdapterMock) GetMockErr() error {
+	var returnError error
+	if a.errorValue != "" {
+		returnError = errors.New(a.errorValue)
+	}
+	return returnError
+}
+
+// AddPolicy adds a policy rule to the storage.
+func (a *AdapterMock) AddPolicy(sec string, ptype string, rule []string) error {
+	return a.GetMockErr()
+}
+
+// AddPolicies removes policy rules from the storage.
+func (a *AdapterMock) AddPolicies(sec string, ptype string, rules [][]string) error {
+	return a.GetMockErr()
+}
+
+// RemovePolicy removes a policy rule from the storage.
+func (a *AdapterMock) RemovePolicy(sec string, ptype string, rule []string) error {
+	return a.GetMockErr()
+}
+
+// RemovePolicies removes policy rules from the storage.
+func (a *AdapterMock) RemovePolicies(sec string, ptype string, rules [][]string) error {
+	return a.GetMockErr()
+}
+
+// UpdatePolicy removes a policy rule from the storage.
+func (a *AdapterMock) UpdatePolicy(sec string, ptype string, oldRule, newPolicy []string) error {
+	return a.GetMockErr()
+}
+
+func (a *AdapterMock) UpdatePolicies(sec string, ptype string, oldRules, newRules [][]string) error {
+	return a.GetMockErr()
+}
+
+// RemoveFilteredPolicy removes policy rules that match the filter from the storage.
+func (a *AdapterMock) RemoveFilteredPolicy(sec string, ptype string, fieldIndex int, fieldValues ...string) error {
+	return a.GetMockErr()
+}