1 /* 2 * Copyright (c) 2012, 2013, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 package org.openjdk.tests.java.util.stream; 24 25 import java.util.function.Consumer; 26 import java.util.function.DoubleConsumer; 27 import java.util.function.IntConsumer; 28 import java.util.function.LongConsumer; 29 import java.util.stream.*; 30 31 import org.testng.annotations.Test; 32 33 import java.util.ArrayList; 34 import java.util.Collections; 35 import java.util.List; 36 37 import static java.util.stream.LambdaTestHelpers.*; 38 39 /** 40 * TeeOpTest 41 */ 42 @Test(groups = { "serialization-hostile" }) 43 public class TeeOpTest extends OpTestCase { 44 testTee()45 public void testTee() { 46 List<Integer> copy = new ArrayList<>(); 47 48 assertCountSum(countTo(0).stream().peek(copy::add), 0, 0); 49 assertCountSum(copy.iterator(), 0, 0); 50 51 copy.clear(); 52 assertCountSum(countTo(10).stream().peek(copy::add), 10, 55); 53 assertCountSum(copy.iterator(), 10, 55); 54 55 copy.clear(); 56 assertCountSum(countTo(10).stream().map(mDoubler).peek(copy::add), 10, 110); 57 assertCountSum(copy.iterator(), 10, 110); 58 } 59 60 static class AbstractRecordingConsumer<T> { 61 List<T> list; 62 before(TestData<T, ?> td)63 void before(TestData<T, ?> td) { 64 // Tee block can be called concurrently 65 list = Collections.synchronizedList(new ArrayList<>()); 66 } 67 after(TestData<T, ?> td)68 void after(TestData<T, ?> td) { 69 // No guarantees in parallel tests that calls to tee block will 70 // be in the encounter order, if defined, of the data 71 // @@@ Consider passing more meta-data about evaluation 72 assertContentsUnordered(list, td.into(new ArrayList<T>())); 73 } 74 } 75 76 @Test(dataProvider = "StreamTestData<Integer>", dataProviderClass = StreamTestDataProvider.class) testOps(String name, final TestData.OfRef<Integer> data)77 public void testOps(String name, final TestData.OfRef<Integer> data) { 78 class RecordingConsumer extends AbstractRecordingConsumer<Integer> implements Consumer<Integer> { 79 public void accept(Integer t) { 80 list.add(t); 81 } 82 } 83 final RecordingConsumer b = new RecordingConsumer(); 84 85 withData(data) 86 .stream(s -> s.peek(b)) 87 .before(b::before) 88 .after(b::after) 89 .exercise(); 90 } 91 92 @Test(dataProvider = "IntStreamTestData", dataProviderClass = IntStreamTestDataProvider.class) testIntOps(String name, final TestData.OfInt data)93 public void testIntOps(String name, final TestData.OfInt data) { 94 class RecordingConsumer extends AbstractRecordingConsumer<Integer> implements IntConsumer { 95 public void accept(int t) { 96 list.add(t); 97 } 98 } 99 final RecordingConsumer b = new RecordingConsumer(); 100 101 withData(data) 102 .stream(s -> s.peek(b)) 103 .before(b::before) 104 .after(b::after) 105 .exercise(); 106 } 107 108 @Test(dataProvider = "LongStreamTestData", dataProviderClass = LongStreamTestDataProvider.class) testLongOps(String name, final TestData.OfLong data)109 public void testLongOps(String name, final TestData.OfLong data) { 110 class RecordingConsumer extends AbstractRecordingConsumer<Long> implements LongConsumer { 111 public void accept(long t) { 112 list.add(t); 113 } 114 } 115 final RecordingConsumer b = new RecordingConsumer(); 116 117 withData(data) 118 .stream(s -> s.peek(b)) 119 .before(b::before) 120 .after(b::after) 121 .exercise(); 122 } 123 124 @Test(dataProvider = "DoubleStreamTestData", dataProviderClass = DoubleStreamTestDataProvider.class) testDoubleOps(String name, final TestData.OfDouble data)125 public void testDoubleOps(String name, final TestData.OfDouble data) { 126 class RecordingConsumer extends AbstractRecordingConsumer<Double> implements DoubleConsumer { 127 public void accept(double t) { 128 list.add(t); 129 } 130 } 131 final RecordingConsumer b = new RecordingConsumer(); 132 133 withData(data) 134 .stream(s -> s.peek(b)) 135 .before(b::before) 136 .after(b::after) 137 .exercise(); 138 } 139 } 140