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. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 package org.openjdk.tests.java.util.stream; 26 27 import java.util.OptionalDouble; 28 import java.util.OptionalInt; 29 import java.util.OptionalLong; 30 import java.util.stream.*; 31 32 import org.testng.annotations.Test; 33 34 import static java.util.stream.LambdaTestHelpers.countTo; 35 36 /** 37 * MinMaxTest 38 * 39 * @author Brian Goetz 40 */ 41 @Test 42 public class MinMaxTest extends OpTestCase { 43 public void testMinMax() { 44 assertTrue(!countTo(0).stream().min(Integer::compare).isPresent()); 45 assertTrue(!countTo(0).stream().max(Integer::compare).isPresent()); 46 assertEquals(1, (int) countTo(1000).stream().min(Integer::compare).get()); 47 assertEquals(1000, (int) countTo(1000).stream().max(Integer::compare).get()); 48 } 49 50 @Test(dataProvider = "StreamTestData<Integer>", dataProviderClass = StreamTestDataProvider.class) 51 public void testOps(String name, TestData.OfRef<Integer> data) { 52 exerciseTerminalOps(data, s -> s.min(Integer::compare)); 53 exerciseTerminalOps(data, s -> s.max(Integer::compare)); 54 } 55 56 public void testIntMinMax() { 57 assertEquals(IntStream.empty().min(), OptionalInt.empty()); 58 assertEquals(IntStream.empty().max(), OptionalInt.empty()); 59 assertEquals(1, IntStream.range(1, 1001).min().getAsInt()); 60 assertEquals(1000, IntStream.range(1, 1001).max().getAsInt()); 61 } 62 63 @Test(dataProvider = "IntStreamTestData", dataProviderClass = IntStreamTestDataProvider.class) 64 public void testIntOps(String name, TestData.OfInt data) { 65 exerciseTerminalOps(data, s -> s.min()); 66 exerciseTerminalOps(data, s -> s.max()); 67 } 68 69 public void testLongMinMax() { 70 assertEquals(LongStream.empty().min(), OptionalLong.empty()); 71 assertEquals(LongStream.empty().max(), OptionalLong.empty()); 72 assertEquals(1, LongStream.range(1, 1001).min().getAsLong()); 73 assertEquals(1000, LongStream.range(1, 1001).max().getAsLong()); 74 } 75 76 @Test(dataProvider = "LongStreamTestData", dataProviderClass = LongStreamTestDataProvider.class) 77 public void testLongOps(String name, TestData.OfLong data) { 78 exerciseTerminalOps(data, s -> s.min()); 79 exerciseTerminalOps(data, s -> s.max()); 80 } 81 82 public void testDoubleMinMax() { 83 assertEquals(DoubleStream.empty().min(), OptionalDouble.empty()); 84 assertEquals(DoubleStream.empty().max(), OptionalDouble.empty()); 85 assertEquals(1.0, LongStream.range(1, 1001).doubles().min().getAsDouble()); 86 assertEquals(1000.0, LongStream.range(1, 1001).doubles().max().getAsDouble()); 87 } 88 89 @Test(dataProvider = "DoubleStreamTestData", dataProviderClass = DoubleStreamTestDataProvider.class) 90 public void testDoubleOps(String name, TestData.OfDouble data) { 91 exerciseTerminalOps(data, s -> s.min()); 92 exerciseTerminalOps(data, s -> s.max()); 93 } 94 }