1 /*
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3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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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).
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23 
24 /**
25  * @test
26  * @summary Tests counting of streams containing Integer.MAX_VALUE + 1 elements
27  * @bug 8031187 8067969
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 import android.platform.test.annotations.LargeTest;
39 
40 @LargeTest
41 @Test
42 public class CountLargeTest {
43 
44     static final long EXPECTED_LARGE_COUNT = 1L + Integer.MAX_VALUE;
45 
testRefLarge()46     public void testRefLarge() {
47         // Test known sized stream
48         {
49             long count = LongStream.range(0, EXPECTED_LARGE_COUNT)
50                     .mapToObj(e -> null).count();
51             assertEquals(count, EXPECTED_LARGE_COUNT);
52         }
53         // Test unknown sized stream
54         {
55             long count = LongStream.range(0, EXPECTED_LARGE_COUNT)
56                     .mapToObj(e -> null).filter(e -> true).count();
57             assertEquals(count, EXPECTED_LARGE_COUNT);
58         }
59     }
60 
testIntLarge()61     public void testIntLarge() {
62         // Test known sized stream
63         {
64             long count = LongStream.range(0, EXPECTED_LARGE_COUNT)
65                     .mapToInt(e -> 0).count();
66             assertEquals(count, EXPECTED_LARGE_COUNT);
67         }
68         // Test unknown sized stream
69         {
70             long count = LongStream.range(0, EXPECTED_LARGE_COUNT)
71                     .mapToInt(e -> 0).filter(e -> true).count();
72             assertEquals(count, EXPECTED_LARGE_COUNT);
73         }
74     }
75 
testLongLarge()76     public void testLongLarge() {
77         // Test known sized stream
78         {
79             long count = LongStream.range(0, EXPECTED_LARGE_COUNT)
80                     .count();
81             assertEquals(count, EXPECTED_LARGE_COUNT);
82         }
83         // Test unknown sized stream
84         {
85             long count = LongStream.range(0, EXPECTED_LARGE_COUNT)
86                     .filter(e -> true).count();
87             assertEquals(count, EXPECTED_LARGE_COUNT);
88         }
89     }
90 
testDoubleLarge()91     public void testDoubleLarge() {
92         // Test known sized stream
93         {
94             long count = LongStream.range(0, EXPECTED_LARGE_COUNT)
95                     .mapToDouble(e -> 0.0).count();
96             assertEquals(count, EXPECTED_LARGE_COUNT);
97         }
98         // Test unknown sized stream
99         {
100             long count = LongStream.range(0, EXPECTED_LARGE_COUNT)
101                     .mapToDouble(e -> 0.0).filter(e -> true).count();
102             assertEquals(count, EXPECTED_LARGE_COUNT);
103         }
104     }
105 }
106