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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.stream.BaseStream;
34 import java.util.stream.Stream;
35 import java.util.stream.IntStream;
36 import java.util.stream.LongStream;
37 import java.util.stream.DoubleStream;
38 
39 import org.testng.annotations.Test;
40 
41 public class PrimitiveSumTest extends OpTestCase {
42 
43     @Test(dataProvider = "IntStreamTestData", dataProviderClass = IntStreamTestDataProvider.class)
testOps(String name, TestData.OfInt data)44     public void testOps(String name, TestData.OfInt data) {
45         exerciseTerminalOps(data, s -> s.sum());
46 
47         withData(data).
48                 terminal(s -> (long) s.sum()).
49                 expectedResult(data.stream().asLongStream().reduce(0, LambdaTestHelpers.lrPlus)).
50                 exercise();
51     }
52 
53     @Test(dataProvider = "LongStreamTestData", dataProviderClass = LongStreamTestDataProvider.class)
testOps(String name, TestData.OfLong data)54     public void testOps(String name, TestData.OfLong data) {
55         exerciseTerminalOps(data, s -> s.sum());
56 
57         withData(data).
58                 terminal(s -> s.sum()).
59                 expectedResult(data.stream().reduce(0, LambdaTestHelpers.lrPlus)).
60                 exercise();
61     }
62 
63     // @@@ For Double depending on the input data the average algorithm may produce slightly
64     //     different results for the sequential and parallel evaluation.results are within
65     //     While the following works at the moment, it could change when double data, not cast from long
66     //     values is introduced, or if the sum algorithm is modified.
67     @Test(dataProvider = "DoubleStreamTestData", dataProviderClass = DoubleStreamTestDataProvider.class)
testOps(String name, TestData.OfDouble data)68     public void testOps(String name, TestData.OfDouble data) {
69         exerciseTerminalOps(data, s -> s.sum());
70 
71         withData(data).
72                 terminal(s -> s.sum()).
73                 expectedResult(data.stream().reduce(0, LambdaTestHelpers.drPlus)).
74                 exercise();
75     }
76 }
77 
78