1 /*
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11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
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23 
24 /**
25  * @test
26  * @summary Tests counting of streams containing Integer.MAX_VALUE + 1 elements
27  * @bug 8031187
28  */
29 
30 package org.openjdk.tests.java.util.stream;
31 
32 import java.util.stream.LongStream;
33 
34 import org.testng.annotations.Test;
35 
36 import static org.testng.Assert.*;
37 
38 @Test
39 public class CountLargeTest {
40 
41     static final long EXPECTED_LARGE_COUNT = 1L + Integer.MAX_VALUE;
42 
testRefLarge()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 
testIntLarge()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 
testLongLarge()57     public void testLongLarge() {
58         long count = LongStream.range(0, EXPECTED_LARGE_COUNT)
59                 .count();
60 
61         assertEquals(count, EXPECTED_LARGE_COUNT);
62     }
63 
testDoubleLarge()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