/*
    * 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.maven.enforcer.rules.files;
  
  import java.io.File;
  import java.io.IOException;
  import java.util.Arrays;
  import java.util.Collections;
  
  import org.apache.maven.enforcer.rule.api.EnforcerRuleException;
  import org.junit.jupiter.api.Test;
  import org.junit.jupiter.api.io.TempDir;
  
  import static org.junit.jupiter.api.Assertions.assertFalse;
  import static org.junit.jupiter.api.Assertions.assertNotNull;
  import static org.junit.jupiter.api.Assertions.assertThrows;
  import static org.junit.jupiter.api.Assertions.assertTrue;
  
  /**
   * Test the "require files exist" rule.
   *
   * @author <a href="brett@apache.org">Brett Porter</a>
   */
  class TestRequireFilesExist {
      @TempDir
      private File temporaryFolder;
  
      private final RequireFilesExist rule = new RequireFilesExist();
  
      @Test
      void testFileExists() throws Exception {
          File f = File.createTempFile("junit", null, temporaryFolder);
  
          rule.setFilesList(Collections.singletonList(f.getCanonicalFile()));
  
          rule.execute();
      }
  
      @Test
      void testFileOsIndependentExists() {
          rule.setFilesList(Collections.singletonList(new File("POM.xml")));
  
          EnforcerRuleException e = assertThrows(EnforcerRuleException.class, () -> rule.execute());
  
          assertNotNull(e.getMessage());
      }
  
      @Test
      void testEmptyFile() {
          rule.setFilesList(Collections.singletonList(null));
  
          EnforcerRuleException e = assertThrows(EnforcerRuleException.class, () -> rule.execute());
  
          assertNotNull(e.getMessage());
      }
  
      @Test
      void testEmptyFileAllowNull() throws Exception {
          rule.setFilesList(Collections.singletonList(null));
          rule.setAllowNulls(true);
          rule.execute();
      }
  
      @Test
      void testEmptyFileList() {
          rule.setFilesList(Collections.emptyList());
          assertTrue(rule.getFiles().isEmpty());
  
          EnforcerRuleException e = assertThrows(EnforcerRuleException.class, () -> rule.execute());
  
          assertNotNull(e.getMessage());
      }
  
      @Test
      void testEmptyFileListAllowNull() throws Exception {
          rule.setFilesList(Collections.emptyList());
          assertTrue(rule.getFiles().isEmpty());
          rule.setAllowNulls(true);
          rule.execute();
      }
  
      @Test
      void testFileDoesNotExist() throws Exception {
         File f = File.createTempFile("junit", null, temporaryFolder);
         f.delete();
 
         assertFalse(f.exists());
         rule.setFilesList(Collections.singletonList(f));
 
         EnforcerRuleException e = assertThrows(EnforcerRuleException.class, () -> rule.execute());
 
         assertNotNull(e.getMessage());
     }
 
     @Test
     void testFileExistsSatisfyAny() throws EnforcerRuleException, IOException {
         File f = File.createTempFile("junit", null, temporaryFolder);
         f.delete();
 
         assertFalse(f.exists());
 
         File g = File.createTempFile("junit", null, temporaryFolder);
 
         assertTrue(g.exists());
 
         rule.setFilesList(Arrays.asList(f, g.getCanonicalFile()));
         rule.setSatisfyAny(true);
 
         rule.execute();
     }
 
     /**
      * Test id.
      */
     @Test
     void testId() {
         assertNotNull(rule.getCacheId());
     }
 }