/*
    * 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 org.apache.commons.jexl3;
  
  import static org.junit.jupiter.api.Assertions.assertEquals;
  import static org.junit.jupiter.api.Assertions.assertNotNull;
  import static org.junit.jupiter.api.Assertions.assertThrows;
  
  import java.io.File;
  import java.io.FileReader;
  import java.util.Collections;
  
  import org.apache.commons.jexl3.introspection.JexlPermissions;
  import org.junit.jupiter.api.Test;
  
  import com.google.gson.Gson;
  
  /**
   * Tests for pragmas
   */
  public class ComposePermissionsTest extends JexlTestCase {
      static final String SAMPLE_JSON = "src/test/scripts/sample.json";
  
      /**
       * Create a new test case.
       */
      public ComposePermissionsTest() {
          super("PermissionsTest");
      }
  
      void runComposePermissions(final JexlPermissions p) throws Exception {
          final String check = "http://example.com/content.jpg";
          final File jsonFile = new File(SAMPLE_JSON);
          final Gson gson = new Gson();
          final Object json;
          try (final FileReader reader = new FileReader(jsonFile)) {
              json = gson.fromJson(reader, Object.class);
              assertNotNull(json);
          }
  
          // will succeed because java.util.Map is allowed and gson LinkedTreeMap is one
          final JexlEngine j0 = createEngine(false, p);
          final JexlScript s0 = j0.createScript("json.pageInfo.pagePic", "json");
          final Object r0 = s0.execute(null, json);
          assertEquals(check, r0);
  
          // will fail if gson package is denied
          JexlEngine j1 = createEngine(false, p.compose("com.google.gson.internal {}"));
          final JexlScript s1 = j1.createScript("json.pageInfo.pagePic", "json");
          JexlException.Property xproperty = assertThrows(JexlException.Property.class, () -> s1.execute(null, json));
          assertEquals("pageInfo", xproperty.getProperty());
  
          // will fail since gson package is denied
          j1 = createEngine(false, p.compose("com.google.gson.internal { LinkedTreeMap {} }"));
          final JexlScript s2 = j1.createScript("json.pageInfo.pagePic", "json");
          xproperty = assertThrows(JexlException.Property.class, () -> s2.execute(null, json));
          assertEquals("pageInfo", xproperty.getProperty());
  
          // will not fail since gson objects
          j1 = createEngine(false, JexlPermissions.RESTRICTED);
          final JexlScript s3 = j1.createScript("json.pageInfo.pagePic", "json");
          s3.execute(null, json);
          assertEquals(check, r0);
      }
  
      @Test
      public void testComposePermissions() throws Exception {
          runComposePermissions(JexlPermissions.UNRESTRICTED);
      }
  
      @Test
      public void testComposePermissions1() throws Exception {
          runComposePermissions(new JexlPermissions.Delegate(JexlPermissions.UNRESTRICTED) {
              @Override
              public String toString() {
                  return "delegate:" + base.toString();
              }
          });
      }
  
      @Test
      public void testComposePermissions2() throws Exception {
          runComposePermissions(new JexlPermissions.ClassPermissions(JexlPermissions.UNRESTRICTED, Collections.emptySet()));
      }
  }