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 java.util.OptionalDouble; 34 import java.util.OptionalInt; 35 import java.util.OptionalLong; 36 37 import java.util.stream.BaseStream; 38 import java.util.stream.Stream; 39 import java.util.stream.IntStream; 40 import java.util.stream.LongStream; 41 import java.util.stream.DoubleStream; 42 43 import org.testng.annotations.Test; 44 45 import static org.openjdk.testlib.java.util.stream.LambdaTestHelpers.countTo; 46 47 /** 48 * MinMaxTest 49 * 50 * @author Brian Goetz 51 */ 52 @Test 53 public class MinMaxTest extends OpTestCase { 54 public void testMinMax() { 55 assertTrue(!countTo(0).stream().min(Integer::compare).isPresent()); 56 assertTrue(!countTo(0).stream().max(Integer::compare).isPresent()); 57 assertEquals(1, (int) countTo(1000).stream().min(Integer::compare).get()); 58 assertEquals(1000, (int) countTo(1000).stream().max(Integer::compare).get()); 59 } 60 61 @Test(dataProvider = "StreamTestData<Integer>", dataProviderClass = StreamTestDataProvider.class) 62 public void testOps(String name, TestData.OfRef<Integer> data) { 63 exerciseTerminalOps(data, s -> s.min(Integer::compare)); 64 exerciseTerminalOps(data, s -> s.max(Integer::compare)); 65 } 66 67 public void testIntMinMax() { 68 assertEquals(IntStream.empty().min(), OptionalInt.empty()); 69 assertEquals(IntStream.empty().max(), OptionalInt.empty()); 70 assertEquals(1, IntStream.range(1, 1001).min().getAsInt()); 71 assertEquals(1000, IntStream.range(1, 1001).max().getAsInt()); 72 } 73 74 @Test(dataProvider = "IntStreamTestData", dataProviderClass = IntStreamTestDataProvider.class) 75 public void testIntOps(String name, TestData.OfInt data) { 76 exerciseTerminalOps(data, s -> s.min()); 77 exerciseTerminalOps(data, s -> s.max()); 78 } 79 80 public void testLongMinMax() { 81 assertEquals(LongStream.empty().min(), OptionalLong.empty()); 82 assertEquals(LongStream.empty().max(), OptionalLong.empty()); 83 assertEquals(1, LongStream.range(1, 1001).min().getAsLong()); 84 assertEquals(1000, LongStream.range(1, 1001).max().getAsLong()); 85 } 86 87 @Test(dataProvider = "LongStreamTestData", dataProviderClass = LongStreamTestDataProvider.class) 88 public void testLongOps(String name, TestData.OfLong data) { 89 exerciseTerminalOps(data, s -> s.min()); 90 exerciseTerminalOps(data, s -> s.max()); 91 } 92 93 public void testDoubleMinMax() { 94 assertEquals(DoubleStream.empty().min(), OptionalDouble.empty()); 95 assertEquals(DoubleStream.empty().max(), OptionalDouble.empty()); 96 assertEquals(1.0, LongStream.range(1, 1001).asDoubleStream().min().getAsDouble()); 97 assertEquals(1000.0, LongStream.range(1, 1001).asDoubleStream().max().getAsDouble()); 98 } 99 100 @Test(dataProvider = "DoubleStreamTestData", dataProviderClass = DoubleStreamTestDataProvider.class) 101 public void testDoubleOps(String name, TestData.OfDouble data) { 102 exerciseTerminalOps(data, s -> s.min()); 103 exerciseTerminalOps(data, s -> s.max()); 104 } 105 } 106
