/*
    * 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.shared.scriptinterpreter;
  
  import java.io.File;
  import java.io.IOException;
  import java.nio.file.Files;
  
  import org.junit.jupiter.api.Test;
  
  import static org.junit.jupiter.api.Assertions.assertEquals;
  import static org.junit.jupiter.api.Assertions.assertNull;
  import static org.junit.jupiter.api.Assertions.assertTrue;
  
  /**
   * FileLoggerTest
   */
  public class FileLoggerTest {
  
      public static final String EXPECTED_LOG = "Test1" + System.lineSeparator() + "Test2" + System.lineSeparator();
  
      @Test
      public void nullOutputFileNoMirror() throws IOException {
          try (FileLogger fileLogger = new FileLogger(null)) {
              fileLogger.consumeLine("Test1");
              fileLogger.getPrintStream().println("Test2");
              fileLogger.getPrintStream().flush();
  
              assertNull(fileLogger.getOutputFile());
          }
      }
  
      @Test
      public void nullOutputFileWithMirror() throws IOException {
          TestMirrorHandler mirrorHandler = new TestMirrorHandler();
  
          try (FileLogger fileLogger = new FileLogger(null, mirrorHandler)) {
              fileLogger.consumeLine("Test1");
              fileLogger.getPrintStream().println("Test2");
              fileLogger.getPrintStream().flush();
  
              assertNull(fileLogger.getOutputFile());
          }
  
          assertEquals(EXPECTED_LOG, mirrorHandler.getLoggedMessage());
      }
  
      @Test
      public void nullOutputFileWithMirrorWriteByte() throws IOException {
          TestMirrorHandler mirrorHandler = new TestMirrorHandler();
  
          try (FileLogger fileLogger = new FileLogger(null, mirrorHandler)) {
              fileLogger.getPrintStream().write('A');
              fileLogger.getPrintStream().flush();
  
              assertNull(fileLogger.getOutputFile());
          }
  
          assertEquals("A" + System.lineSeparator(), mirrorHandler.getLoggedMessage());
      }
  
      @Test
      public void outputFileNoMirror() throws IOException {
          File outputFile = new File("target/test.log");
          if (outputFile.exists()) {
              outputFile.delete();
          }
  
          try (FileLogger fileLogger = new FileLogger(outputFile)) {
              fileLogger.consumeLine("Test1");
              fileLogger.getPrintStream().println("Test2");
              fileLogger.getPrintStream().flush();
  
              assertEquals(outputFile, fileLogger.getOutputFile());
          }
  
          assertTrue(outputFile.exists());
          assertEquals(EXPECTED_LOG, new String(Files.readAllBytes(outputFile.toPath())));
      }
  
      @Test
      public void outputFileWithMirror() throws IOException {
          File outputFile = new File("target/test.log");
         if (outputFile.exists()) {
             outputFile.delete();
         }
         TestMirrorHandler mirrorHandler = new TestMirrorHandler();
 
         try (FileLogger fileLogger = new FileLogger(outputFile, mirrorHandler)) {
             fileLogger.consumeLine("Test1");
             fileLogger.getPrintStream().println("Test2");
             fileLogger.getPrintStream().flush();
 
             assertEquals(outputFile, fileLogger.getOutputFile());
         }
 
         assertEquals(EXPECTED_LOG, mirrorHandler.getLoggedMessage());
 
         assertTrue(outputFile.exists());
         assertEquals(EXPECTED_LOG, new String(Files.readAllBytes(outputFile.toPath())));
     }
 }