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.LongStreamTestDataProvider; 28 import org.openjdk.testlib.java.util.stream.OpTestCase; 29 import org.openjdk.testlib.java.util.stream.StreamTestDataProvider; 30 import org.openjdk.testlib.java.util.stream.TestData; 31 32 import org.testng.annotations.Test; 33 34 import java.util.Arrays; 35 import java.util.Collection; 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 /** 45 * FilterOpTest 46 * 47 * @author Brian Goetz 48 */ 49 @Test 50 public class FilterOpTest extends OpTestCase { 51 public void testFilter() { 52 assertCountSum(countTo(0).stream().filter(pTrue), 0, 0); 53 assertCountSum(countTo(10).stream().filter(pFalse), 0, 0); 54 assertCountSum(countTo(10).stream().filter(pEven), 5, 30); 55 assertCountSum(countTo(10).stream().filter(pOdd), 5, 25); 56 assertCountSum(countTo(10).stream().filter(pTrue), 10, 55); 57 assertCountSum(countTo(10).stream().filter(pEven).filter(pOdd), 0, 0); 58 59 exerciseOps(countTo(1000), s -> s.filter(pTrue), countTo(1000)); 60 exerciseOps(countTo(1000), s -> s.filter(pFalse), countTo(0)); 61 exerciseOps(countTo(1000), s -> s.filter(e -> e > 100), range(101, 1000)); 62 exerciseOps(countTo(1000), s -> s.filter(e -> e < 100), countTo(99)); 63 exerciseOps(countTo(1000), s -> s.filter(e -> e == 100), Arrays.asList(100)); 64 } 65 66 @Test(dataProvider = "StreamTestData<Integer>", dataProviderClass = StreamTestDataProvider.class) 67 public void testOps(String name, TestData.OfRef<Integer> data) { 68 Collection<Integer> result = exerciseOps(data, s -> s.filter(pTrue)); 69 assertEquals(result.size(), data.size()); 70 71 result = exerciseOps(data, s -> s.filter(pFalse)); 72 assertEquals(result.size(), 0); 73 74 exerciseOps(data, s -> s.filter(pEven)); 75 exerciseOps(data, s -> s.filter(pOdd)); 76 77 result = exerciseOps(data, s -> s.filter(pOdd.and(pEven))); 78 assertEquals(result.size(), 0); 79 80 result = exerciseOps(data, s -> s.filter(pOdd.or(pEven))); 81 assertEquals(result.size(), data.size()); 82 } 83 84 @Test(dataProvider = "IntStreamTestData", dataProviderClass = IntStreamTestDataProvider.class) 85 public void testOps(String name, TestData.OfInt data) { 86 Collection<Integer> result = exerciseOps(data, s -> s.filter(i -> true)); 87 assertEquals(result.size(), data.size()); 88 89 result = exerciseOps(data, s -> s.filter(i -> false)); 90 assertEquals(result.size(), 0); 91 92 exerciseOps(data, s -> s.filter(i -> 0 == i % 2)); 93 exerciseOps(data, s -> s.filter(i -> 1 == i % 2)); 94 } 95 96 @Test(dataProvider = "LongStreamTestData", dataProviderClass = LongStreamTestDataProvider.class) 97 public void testOps(String name, TestData.OfLong data) { 98 Collection<Long> result = exerciseOps(data, s -> s.filter(i -> true)); 99 assertEquals(result.size(), data.size()); 100 101 result = exerciseOps(data, s -> s.filter(i -> false)); 102 assertEquals(result.size(), 0); 103 104 exerciseOps(data, s -> s.filter(i -> 0 == i % 2)); 105 exerciseOps(data, s -> s.filter(i -> 1 == i % 2)); 106 } 107 108 @Test(dataProvider = "DoubleStreamTestData", dataProviderClass = DoubleStreamTestDataProvider.class) 109 public void testOps(String name, TestData.OfDouble data) { 110 Collection<Double> result = exerciseOps(data, s -> s.filter(i -> true)); 111 assertEquals(result.size(), data.size()); 112 113 result = exerciseOps(data, s -> s.filter(i -> false)); 114 assertEquals(result.size(), 0); 115 116 exerciseOps(data, s -> s.filter(i -> 0 == ((long) i) % 2)); 117 exerciseOps(data, s -> s.filter(i -> 1 == ((long) i) % 2)); 118 } 119 } 120
