/*
    * 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.io.function;
  
  import static org.junit.jupiter.api.Assertions.assertEquals;
  import static org.junit.jupiter.api.Assertions.assertThrows;
  import static org.junit.jupiter.api.Assertions.assertTrue;
  
  import java.io.IOException;
  import java.util.concurrent.atomic.AtomicBoolean;
  import java.util.concurrent.atomic.AtomicInteger;
  
  import org.junit.jupiter.api.Test;
  
  /**
   * Tests {@code Erase}.
   */
  final class EraseTest {
  
      private final AtomicInteger intRef = new AtomicInteger();
      private final AtomicBoolean boolRef = new AtomicBoolean();
  
      @Test
      void testAcceptIOBiConsumerOfTUTU() {
          Erase.accept((e, f) -> boolRef.set(intRef.compareAndSet(0, e)), 1, true);
          assertEquals(1, intRef.get());
          assertTrue(boolRef.get());
          assertThrows(IOException.class, () -> Erase.accept(TestUtils.throwingIOBiConsumer(), null, 1));
      }
  
      @Test
      void testAcceptIOConsumerOfTT() {
          Erase.accept(e -> intRef.compareAndSet(0, e), 1);
          assertEquals(1, intRef.get());
          assertThrows(IOException.class, () -> Erase.accept(TestUtils.throwingIOConsumer(), 1));
      }
  
      @Test
      void testApplyIOBiFunctionOfQsuperTQsuperUQextendsRTU() {
          assertTrue(Erase.<Integer, Boolean, Boolean>apply((i, b) -> boolRef.compareAndSet(false, intRef.compareAndSet(0, i.intValue())), 1, Boolean.TRUE));
          assertThrows(IOException.class, () -> Erase.apply(TestUtils.throwingIOBiFunction(), 1, Boolean.TRUE));
      }
  
      @Test
      void testApplyIOFunctionOfQsuperTQextendsRT() {
          assertTrue(Erase.<Integer, Boolean>apply(e -> intRef.compareAndSet(0, e), 1));
          assertThrows(IOException.class, () -> Erase.apply(TestUtils.throwingIOFunction(), 1));
      }
  
      @Test
      void testCompare() {
          assertEquals(0, Erase.compare(String::compareTo, "A", "A"));
          assertEquals(-1, Erase.compare(String::compareTo, "A", "B"));
          assertEquals(1, Erase.compare(String::compareTo, "B", "A"));
          assertThrows(IOException.class, () -> Erase.compare(TestUtils.throwingIOComparator(), null, null));
      }
  
      @Test
      void testGet() {
          assertEquals(0, Erase.get(() -> intRef.get()));
          assertThrows(IOException.class, () -> Erase.get(TestUtils.throwingIOSupplier()));
      }
  
      @Test
      void testRethrow() {
          assertThrows(IOException.class, () -> Erase.rethrow(new IOException()));
      }
  
      @Test
      void testRun() {
          Erase.run(() -> intRef.set(1));
          assertEquals(1, intRef.get());
          assertThrows(IOException.class, () -> Erase.run(TestUtils.throwingIORunnable()));
      }
  
      @Test
      void testTest() {
          assertTrue(Erase.test(e -> intRef.compareAndSet(0, e), 1));
          assertThrows(IOException.class, () -> Erase.test(TestUtils.throwingIOPredicate(), 1));
      }
  
  }