| /* |
| * Copyright (c) 2012, 2013, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| package org.openjdk.tests.java.util.stream; |
| |
| import java.util.function.Consumer; |
| import java.util.function.DoubleConsumer; |
| import java.util.function.IntConsumer; |
| import java.util.function.LongConsumer; |
| import java.util.stream.*; |
| |
| import org.testng.annotations.Test; |
| |
| import java.util.ArrayList; |
| import java.util.Collections; |
| import java.util.List; |
| |
| import static java.util.stream.LambdaTestHelpers.*; |
| |
| /** |
| * TeeOpTest |
| */ |
| @Test(groups = { "serialization-hostile" }) |
| public class TeeOpTest extends OpTestCase { |
| |
| public void testTee() { |
| List<Integer> copy = new ArrayList<>(); |
| |
| assertCountSum(countTo(0).stream().peek(copy::add), 0, 0); |
| assertCountSum(copy.iterator(), 0, 0); |
| |
| copy.clear(); |
| assertCountSum(countTo(10).stream().peek(copy::add), 10, 55); |
| assertCountSum(copy.iterator(), 10, 55); |
| |
| copy.clear(); |
| assertCountSum(countTo(10).stream().map(mDoubler).peek(copy::add), 10, 110); |
| assertCountSum(copy.iterator(), 10, 110); |
| } |
| |
| static class AbstractRecordingConsumer<T> { |
| List<T> list; |
| |
| void before(TestData<T, ?> td) { |
| // Tee block can be called concurrently |
| list = Collections.synchronizedList(new ArrayList<>()); |
| } |
| |
| void after(TestData<T, ?> td) { |
| // No guarantees in parallel tests that calls to tee block will |
| // be in the encounter order, if defined, of the data |
| // @@@ Consider passing more meta-data about evaluation |
| assertContentsUnordered(list, td.into(new ArrayList<T>())); |
| } |
| } |
| |
| @Test(dataProvider = "StreamTestData<Integer>", dataProviderClass = StreamTestDataProvider.class) |
| public void testOps(String name, final TestData.OfRef<Integer> data) { |
| class RecordingConsumer extends AbstractRecordingConsumer<Integer> implements Consumer<Integer> { |
| public void accept(Integer t) { |
| list.add(t); |
| } |
| } |
| final RecordingConsumer b = new RecordingConsumer(); |
| |
| withData(data) |
| .stream(s -> s.peek(b)) |
| .before(b::before) |
| .after(b::after) |
| .exercise(); |
| } |
| |
| @Test(dataProvider = "IntStreamTestData", dataProviderClass = IntStreamTestDataProvider.class) |
| public void testIntOps(String name, final TestData.OfInt data) { |
| class RecordingConsumer extends AbstractRecordingConsumer<Integer> implements IntConsumer { |
| public void accept(int t) { |
| list.add(t); |
| } |
| } |
| final RecordingConsumer b = new RecordingConsumer(); |
| |
| withData(data) |
| .stream(s -> s.peek(b)) |
| .before(b::before) |
| .after(b::after) |
| .exercise(); |
| } |
| |
| @Test(dataProvider = "LongStreamTestData", dataProviderClass = LongStreamTestDataProvider.class) |
| public void testLongOps(String name, final TestData.OfLong data) { |
| class RecordingConsumer extends AbstractRecordingConsumer<Long> implements LongConsumer { |
| public void accept(long t) { |
| list.add(t); |
| } |
| } |
| final RecordingConsumer b = new RecordingConsumer(); |
| |
| withData(data) |
| .stream(s -> s.peek(b)) |
| .before(b::before) |
| .after(b::after) |
| .exercise(); |
| } |
| |
| @Test(dataProvider = "DoubleStreamTestData", dataProviderClass = DoubleStreamTestDataProvider.class) |
| public void testDoubleOps(String name, final TestData.OfDouble data) { |
| class RecordingConsumer extends AbstractRecordingConsumer<Double> implements DoubleConsumer { |
| public void accept(double t) { |
| list.add(t); |
| } |
| } |
| final RecordingConsumer b = new RecordingConsumer(); |
| |
| withData(data) |
| .stream(s -> s.peek(b)) |
| .before(b::before) |
| .after(b::after) |
| .exercise(); |
| } |
| } |