/*
    * 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
    *
    *      https://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.io.output;
  
  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.IOException;
  import java.io.Writer;
  
  import org.junit.jupiter.api.Test;
  import org.junit.jupiter.params.ParameterizedTest;
  import org.junit.jupiter.params.provider.MethodSource;
  
  /**
   * Tests {@link BrokenWriter}.
   */
  class BrokenWriterTest {
  
      private static BrokenWriter createBrokenWriter(final Throwable exception) {
          if (exception instanceof IOException) {
              return new BrokenWriter((IOException) exception);
          }
          return new BrokenWriter(exception);
      }
  
      @ParameterizedTest
      @MethodSource("org.apache.commons.io.BrokenTestFactories#parameters")
      void testAppendChar(final Class<Exception> clazz) throws Exception {
          final Throwable exception = clazz.newInstance();
          @SuppressWarnings("resource")
          final BrokenWriter brokenWriter = createBrokenWriter(exception);
          assertEquals(exception, assertThrows(clazz, () -> brokenWriter.append('1')));
      }
  
      @ParameterizedTest
      @MethodSource("org.apache.commons.io.BrokenTestFactories#parameters")
      void testAppendCharSequence(final Class<Throwable> clazz) throws Exception {
          final Throwable exception = clazz.newInstance();
          @SuppressWarnings("resource")
          final BrokenWriter brokenWriter = createBrokenWriter(exception);
          assertEquals(exception, assertThrows(clazz, () -> brokenWriter.append("01")));
          assertEquals(exception, assertThrows(clazz, () -> brokenWriter.append(null)));
      }
  
      @ParameterizedTest
      @MethodSource("org.apache.commons.io.BrokenTestFactories#parameters")
      void testAppendCharSequenceIndexed(final Class<Throwable> clazz) throws Exception {
          final Throwable exception = clazz.newInstance();
          @SuppressWarnings("resource")
          final BrokenWriter brokenWriter = createBrokenWriter(exception);
          assertEquals(exception, assertThrows(clazz, () -> brokenWriter.append("01", 0, 1)));
          assertEquals(exception, assertThrows(clazz, () -> brokenWriter.append(null, 0, 4)));
      }
  
      @ParameterizedTest
      @MethodSource("org.apache.commons.io.BrokenTestFactories#parameters")
      void testClose(final Class<Throwable> clazz) throws Exception {
          final Throwable exception = clazz.newInstance();
          @SuppressWarnings("resource")
          final BrokenWriter brokenWriter = createBrokenWriter(exception);
          assertEquals(exception, assertThrows(clazz, brokenWriter::close));
      }
  
      @ParameterizedTest
      @MethodSource("org.apache.commons.io.BrokenTestFactories#parameters")
      void testFlush(final Class<Throwable> clazz) throws Exception {
          final Throwable exception = clazz.newInstance();
          @SuppressWarnings("resource")
          final BrokenWriter brokenWriter = createBrokenWriter(exception);
          assertEquals(exception, assertThrows(clazz, brokenWriter::flush));
      }
  
      @Test
      void testInstance() {
          assertNotNull(BrokenWriter.INSTANCE);
      }
  
      @Test
      void testTryWithResources() {
          final IOException thrown = assertThrows(IOException.class, () -> {
              try (Writer newWriter = new BrokenWriter()) {
                  newWriter.write(1);
              }
         });
         assertEquals("Broken writer", thrown.getMessage());
 
         final Throwable[] suppressed = thrown.getSuppressed();
         assertEquals(1, suppressed.length);
         assertEquals(IOException.class, suppressed[0].getClass());
         assertEquals("Broken writer", suppressed[0].getMessage());
     }
 
     @ParameterizedTest
     @MethodSource("org.apache.commons.io.BrokenTestFactories#parameters")
     void testWriteCharArray(final Class<Throwable> clazz) throws Exception {
         final Throwable exception = clazz.newInstance();
         @SuppressWarnings("resource")
         final BrokenWriter brokenWriter = createBrokenWriter(exception);
         assertEquals(exception, assertThrows(clazz, () -> brokenWriter.write(new char[1])));
     }
 
     @ParameterizedTest
     @MethodSource("org.apache.commons.io.BrokenTestFactories#parameters")
     void testWriteCharArrayIndexed(final Class<Throwable> clazz) throws Exception {
         final Throwable exception = clazz.newInstance();
         @SuppressWarnings("resource")
         final BrokenWriter brokenWriter = createBrokenWriter(exception);
         final char[] cbuf = new char[1];
         assertEquals(exception, assertThrows(clazz, () -> brokenWriter.write(cbuf, 0, 1)));
         // Verify that the exception is thrown before checking the parameters.
         assertEquals(exception, assertThrows(clazz, () -> brokenWriter.write(cbuf, -1, 0)));
         assertEquals(exception, assertThrows(clazz, () -> brokenWriter.write(cbuf, 0, -1)));
         assertEquals(exception, assertThrows(clazz, () -> brokenWriter.write(cbuf, 0, 2)));
         assertEquals(exception, assertThrows(clazz, () -> brokenWriter.write((char[]) null, 0, 0)));
     }
 
     @ParameterizedTest
     @MethodSource("org.apache.commons.io.BrokenTestFactories#parameters")
     void testWriteInt(final Class<Throwable> clazz) throws Exception {
         final Throwable exception = clazz.newInstance();
         @SuppressWarnings("resource")
         final BrokenWriter brokenWriter = createBrokenWriter(exception);
         assertEquals(exception, assertThrows(clazz, () -> brokenWriter.write(1)));
     }
 
     @ParameterizedTest
     @MethodSource("org.apache.commons.io.BrokenTestFactories#parameters")
     void testWriteString(final Class<Throwable> clazz) throws Exception {
         final Throwable exception = clazz.newInstance();
         @SuppressWarnings("resource")
         final BrokenWriter brokenWriter = createBrokenWriter(exception);
         assertEquals(exception, assertThrows(clazz, () -> brokenWriter.write("01")));
     }
 
     @ParameterizedTest
     @MethodSource("org.apache.commons.io.BrokenTestFactories#parameters")
     void testWriteStringIndexed(final Class<Throwable> clazz) throws Exception {
         final Throwable exception = clazz.newInstance();
         @SuppressWarnings("resource")
         final BrokenWriter brokenWriter = createBrokenWriter(exception);
         assertEquals(exception, assertThrows(clazz, () -> brokenWriter.write("01", 0, 1)));
     }
 
 }