1/*
2 * Copyright (c) 2014, 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
24/**
25 * @test
26 * @summary Tests counting of streams containing Integer.MAX_VALUE + 1 elements
27 * @bug 8031187
28 */
29
30package org.openjdk.tests.java.util.stream;
31
32import java.util.stream.LongStream;
33
34import org.testng.annotations.Test;
35
36import static org.testng.Assert.*;
37
38@Test
39public class CountLargeTest {
40
41    static final long EXPECTED_LARGE_COUNT = 1L + Integer.MAX_VALUE;
42
43    public void testRefLarge() {
44        long count = LongStream.range(0, EXPECTED_LARGE_COUNT)
45                .mapToObj(e -> null).count();
46
47        assertEquals(count, EXPECTED_LARGE_COUNT);
48    }
49
50    public void testIntLarge() {
51        long count = LongStream.range(0, EXPECTED_LARGE_COUNT)
52                .mapToInt(e -> 0).count();
53
54        assertEquals(count, EXPECTED_LARGE_COUNT);
55    }
56
57    public void testLongLarge() {
58        long count = LongStream.range(0, EXPECTED_LARGE_COUNT)
59                .count();
60
61        assertEquals(count, EXPECTED_LARGE_COUNT);
62    }
63
64    public void testDoubleLarge() {
65        long count = LongStream.range(0, EXPECTED_LARGE_COUNT)
66                .mapToDouble(e -> 0.0).count();
67
68        assertEquals(count, EXPECTED_LARGE_COUNT);
69    }
70}
71