content: /*
   * Copyright 1999-2025 Alibaba Group Holding Ltd.
   *
   * 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 com.alibaba.nacos.core.namespace.filter;
  
  import com.alibaba.nacos.sys.env.EnvUtil;
  import org.junit.jupiter.api.Test;
  import org.springframework.mock.env.MockEnvironment;
  
  import java.lang.reflect.Constructor;
  
  import static org.junit.jupiter.api.Assertions.assertFalse;
  import static org.junit.jupiter.api.Assertions.assertTrue;
  
  /**
   * {@link NamespaceValidationConfig} unit test.
   *
   * @author FangYuan
   * @since 2025-08-13 13:42:00
   */
  class NamespaceValidationConfigTest {
  
      @Test
      void testGetConfigFromEnvWithDefaultValue() throws ReflectiveOperationException {
          MockEnvironment environment = new MockEnvironment();
          EnvUtil.setEnvironment(environment);
  
          Constructor<NamespaceValidationConfig> declaredConstructor = NamespaceValidationConfig.class.getDeclaredConstructor();
          declaredConstructor.setAccessible(true);
          NamespaceValidationConfig config = declaredConstructor.newInstance();
  
          assertFalse(config.isNamespaceValidationEnabled());
      }
  
      @Test
      void testGetConfigFromEnvWithDisabled() throws ReflectiveOperationException {
          MockEnvironment environment = new MockEnvironment();
          EnvUtil.setEnvironment(environment);
          environment.setProperty("nacos.core.namespace.validation.enabled", String.valueOf(false));
  
          Constructor<NamespaceValidationConfig> declaredConstructor = NamespaceValidationConfig.class.getDeclaredConstructor();
          declaredConstructor.setAccessible(true);
          NamespaceValidationConfig config = declaredConstructor.newInstance();
  
          assertFalse(config.isNamespaceValidationEnabled());
      }
  
      @Test
      void testGetConfigFromEnvWithEnabled() throws ReflectiveOperationException {
          MockEnvironment environment = new MockEnvironment();
          EnvUtil.setEnvironment(environment);
          environment.setProperty("nacos.core.namespace.validation.enabled", String.valueOf(true));
  
          Constructor<NamespaceValidationConfig> declaredConstructor = NamespaceValidationConfig.class.getDeclaredConstructor();
          declaredConstructor.setAccessible(true);
          NamespaceValidationConfig config = declaredConstructor.newInstance();
  
          assertTrue(config.isNamespaceValidationEnabled());
      }
  
      @Test
      void testPrintConfig() {
          NamespaceValidationConfig config = NamespaceValidationConfig.getInstance();
          String configStr = config.printConfig();
  
          assertTrue(configStr.contains("NamespaceValidationConfig"));
          assertTrue(configStr.contains("namespaceValidationEnabled"));
      }
  }