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 org.openjdk.testlib.java.util.stream.DoubleStreamTestDataProvider; 26 import org.openjdk.testlib.java.util.stream.IntStreamTestDataProvider; 27 import org.openjdk.testlib.java.util.stream.LambdaTestHelpers; 28 import org.openjdk.testlib.java.util.stream.LongStreamTestDataProvider; 29 import org.openjdk.testlib.java.util.stream.OpTestCase; 30 import org.openjdk.testlib.java.util.stream.StreamTestDataProvider; 31 import org.openjdk.testlib.java.util.stream.TestData; 32 33 import org.testng.annotations.Test; 34 35 import java.util.Spliterator; 36 import java.util.stream.BaseStream; 37 import java.util.stream.Stream; 38 import java.util.stream.IntStream; 39 import java.util.stream.LongStream; 40 import java.util.stream.DoubleStream; 41 42 import static org.openjdk.testlib.java.util.stream.LambdaTestHelpers.*; 43 44 import android.platform.test.annotations.LargeTest; 45 46 /** 47 * MapOpTest 48 * 49 * @author Brian Goetz 50 */ 51 @Test 52 public class MapOpTest extends OpTestCase { 53 testMap()54 public void testMap() { 55 assertCountSum(countTo(0).stream().map(mId), 0, 0); 56 assertCountSum(countTo(10).stream().map(mId), 10, 55); 57 assertCountSum(countTo(10).stream().map(mZero), 10, 0); 58 assertCountSum(countTo(0).stream().map(mDoubler), 0, 0); 59 assertCountSum(countTo(10).stream().map(mDoubler), 10, 110); 60 assertCountSum(countTo(10).stream().map(mDoubler).map(mDoubler), 10, 220); 61 62 exerciseOps(countTo(0), s -> s.map(LambdaTestHelpers.identity()), countTo(0)); 63 exerciseOps(countTo(1000), s -> s.map(LambdaTestHelpers.identity()), countTo(1000)); 64 // @@@ Force cast to integer so output is Stream<Integer> rather an IntStream 65 // this just ensures that no warnings are logged about boxing 66 // when the result is compared with the output 67 exerciseOps(countTo(1000), s -> s.map(e -> (Integer) (1000 + e)), range(1001, 2000)); 68 } 69 testEveryMapShape()70 public void testEveryMapShape() { 71 assertCountSum(countTo(1000).stream() 72 .mapToInt(i -> i - 1) 73 .mapToObj(i -> i + 1) 74 .mapToLong(i -> i - 1) 75 .mapToObj(i -> i + 1) 76 .mapToDouble(i -> i - 1) 77 .mapToObj(i -> i + 1) 78 .mapToInt(i -> (int) (double) i) 79 .mapToLong(i -> i) 80 .mapToDouble(i -> i) 81 .mapToLong(i -> (long) i) 82 .mapToInt(i -> (int) i) 83 .mapToObj(i -> i), 84 1000, countTo(1000).stream().mapToInt(i -> i).sum()); 85 } 86 87 @LargeTest 88 @Test(dataProvider = "StreamTestData<Integer>", dataProviderClass = StreamTestDataProvider.class) testOps(String name, TestData.OfRef<Integer> data)89 public void testOps(String name, TestData.OfRef<Integer> data) { 90 exerciseOpsInt(data, s -> s.map(mId), s -> s.map(e -> e), s -> s.map(e -> e), s -> s.map(e -> e)); 91 exerciseOpsInt(data, s -> s.map(mZero), s -> s.map(e -> 0), s -> s.map(e -> 0), s -> s.map(e -> 0)); 92 exerciseOpsInt(data, s -> s.map(mDoubler), s -> s.map(e -> 2*e), s -> s.map(e -> 2*e), s -> s.map(e -> 2*e)); 93 exerciseOpsInt(data, s -> s.map(LambdaTestHelpers.compose(mId, mDoubler)), s -> s.map(e -> 2*e), s -> s.map(e -> 2*e), s -> s.map(e -> 2*e)); 94 exerciseOpsInt(data, s -> s.map(LambdaTestHelpers.compose(mDoubler, mDoubler)), s -> s.map(e -> 4*e), s -> s.map(e -> 4*e), s -> s.map(e -> 4*e)); 95 exerciseOps(data, s -> s.mapToInt(i -> i)); 96 exerciseOps(data, s -> s.mapToLong(i -> i)); 97 exerciseOps(data, s -> s.mapToDouble(i -> i)); 98 } 99 100 // 101 102 @LargeTest 103 @Test(dataProvider = "IntStreamTestData", dataProviderClass = IntStreamTestDataProvider.class) testIntOps(String name, TestData.OfInt data)104 public void testIntOps(String name, TestData.OfInt data) { 105 exerciseOps(data, s -> s.mapToObj(i -> i)); 106 exerciseOps(data, s -> s.map(i -> 0)); 107 exerciseOps(data, s -> s.map(i -> i * 2)); 108 exerciseOps(data, s -> s.asLongStream()); 109 exerciseOps(data, s -> s.asDoubleStream()); 110 exerciseOps(data, s -> s.boxed()); 111 exerciseOps(data, s -> s.mapToObj(Integer::toString)); 112 exerciseOps(data, s -> s.mapToLong(i -> i)); 113 exerciseOps(data, s -> s.mapToDouble(i -> i)); 114 } 115 116 // 117 118 @LargeTest 119 @Test(dataProvider = "LongStreamTestData", dataProviderClass = LongStreamTestDataProvider.class) testLongOps(String name, TestData.OfLong data)120 public void testLongOps(String name, TestData.OfLong data) { 121 exerciseOps(data, s -> s.mapToObj(i -> i)); 122 exerciseOps(data, s -> s.map(i -> 0L)); 123 exerciseOps(data, s -> s.map(i -> i * 2L)); 124 exerciseOps(data, s -> s.asDoubleStream()); 125 exerciseOps(data, s -> s.boxed()); 126 exerciseOps(data, s -> s.mapToObj(e -> Long.toString(e))); 127 exerciseOps(data, s -> s.mapToInt(i -> (int) i)); 128 exerciseOps(data, s -> s.mapToDouble(i -> i)); 129 } 130 131 // 132 133 @LargeTest 134 @Test(dataProvider = "DoubleStreamTestData", dataProviderClass = DoubleStreamTestDataProvider.class) testDoubleOps(String name, TestData.OfDouble data)135 public void testDoubleOps(String name, TestData.OfDouble data) { 136 exerciseOps(data, s -> s.mapToObj(i -> i)); 137 exerciseOps(data, s -> s.map(i -> 0.0)); 138 exerciseOps(data, s -> s.map(i -> i * 2.0)); 139 exerciseOps(data, s -> s.boxed()); 140 exerciseOps(data, s -> s.mapToObj(e -> Double.toString(e))); 141 exerciseOps(data, s -> s.mapToLong(i -> (long) i)); 142 exerciseOps(data, s -> s.mapToInt(i -> (int) i)); 143 } 144 } 145