/*
    * 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.juneau.commons.function;
  
  import static org.junit.jupiter.api.Assertions.*;
  
  import java.util.concurrent.atomic.AtomicInteger;
  
  import org.apache.juneau.*;
  import org.junit.jupiter.api.*;
  
  class ThrowingConsumer4_Test extends TestBase {
  
  	//------------------------------------------------------------------------------------------------------------------
  	// Basic tests.
  	//------------------------------------------------------------------------------------------------------------------
  	@Test void a01_basic() {
  		var callCount = new AtomicInteger();
  		var receivedValues = new Object[4];
  
  		var consumer = (ThrowingConsumer4<String, Integer, Boolean, Double>)(a, b, c, d) -> {
  			callCount.incrementAndGet();
  			receivedValues[0] = a;
  			receivedValues[1] = b;
  			receivedValues[2] = c;
  			receivedValues[3] = d;
  		};
  
  		consumer.apply("test", 42, true, 3.14);
  		assertEquals(1, callCount.get());
  		assertEquals("test", receivedValues[0]);
  		assertEquals(42, receivedValues[1]);
  		assertEquals(true, receivedValues[2]);
  		assertEquals(3.14, receivedValues[3]);
  	}
  
  	//------------------------------------------------------------------------------------------------------------------
  	// Exception handling tests.
  	//------------------------------------------------------------------------------------------------------------------
  	@Test void b01_throwsCheckedException() {
  		var consumer = (ThrowingConsumer4<String, Integer, Boolean, Double>)(a, b, c, d) -> {
  			throw new Exception("Test exception");
  		};
  
  		var ex = assertThrows(RuntimeException.class, () -> {
  			consumer.apply("test", 42, true, 3.14);
  		});
  
  		assertTrue(ex.getCause() instanceof Exception);
  		assertEquals("Test exception", ex.getCause().getMessage());
  	}
  
  	@Test void b02_throwsRuntimeException() {
  		var consumer = (ThrowingConsumer4<String, Integer, Boolean, Double>)(a, b, c, d) -> {
  			throw new RuntimeException("Test runtime exception");
  		};
  
  		var ex = assertThrows(RuntimeException.class, () -> {
  			consumer.apply("test", 42, true, 3.14);
  		});
  
  		assertEquals("Test runtime exception", ex.getMessage());
  		assertNull(ex.getCause());
  	}
  
  	//------------------------------------------------------------------------------------------------------------------
  	// Functional interface tests.
  	//------------------------------------------------------------------------------------------------------------------
  	@Test void c01_usedAsConsumer4() {
  		var callCount = new AtomicInteger();
  
  		var consumer = (Consumer4<String, Integer, Boolean, Double>)(a, b, c, d) -> {
  			callCount.incrementAndGet();
  		};
  
  		consumer.apply("test", 42, true, 3.14);
  		assertEquals(1, callCount.get());
  	}
  
  	@Test void c02_lambdaExpression() {
  		var sum = new AtomicInteger(0);
  
  		ThrowingConsumer4<Integer, Integer, Integer, Integer> consumer = (a, b, c, d) -> {
  			sum.addAndGet(a + b + c + d);
  		};
 
 		consumer.apply(1, 2, 3, 4);
 		assertEquals(10, sum.get());
 	}
 
 	@Test void c03_andThen() {
 		var callCount1 = new AtomicInteger();
 		var callCount2 = new AtomicInteger();
 
 		ThrowingConsumer4<String, Integer, Boolean, Double> consumer1 = (a, b, c, d) -> callCount1.incrementAndGet();
 		ThrowingConsumer4<String, Integer, Boolean, Double> consumer2 = (a, b, c, d) -> callCount2.incrementAndGet();
 
 		var composed = consumer1.andThen(consumer2);
 		composed.apply("test", 42, true, 3.14);
 
 		assertEquals(1, callCount1.get());
 		assertEquals(1, callCount2.get());
 	}
 }