1 /*
2 * Copyright (c) 2012, 2015, 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 flat-map operations
27 * @bug 8044047
28 */
29
30 package org.openjdk.tests.java.util.stream;
31
32 import org.testng.annotations.Test;
33
34 import java.util.Arrays;
35 import java.util.Collection;
36 import java.util.Collections;
37 import java.util.concurrent.atomic.AtomicInteger;
38 import java.util.function.Function;
39 import java.util.function.Supplier;
40 import java.util.stream.DoubleStream;
41 import java.util.stream.DoubleStreamTestDataProvider;
42 import java.util.stream.IntStream;
43 import java.util.stream.IntStreamTestDataProvider;
44 import java.util.stream.LongStream;
45 import java.util.stream.LongStreamTestDataProvider;
46 import java.util.stream.OpTestCase;
47 import java.util.stream.Stream;
113 @Test
114 public void testLongClose() {
115 AtomicInteger before = new AtomicInteger();
116 AtomicInteger onClose = new AtomicInteger();
117
118 LongStream.of(1, 2).peek(e -> before.getAndIncrement()).
119 flatMap(i -> LongStream.of(i, i).onClose(onClose::getAndIncrement)).count();
120 assertEquals(before.get(), onClose.get());
121 }
122
123 @Test
124 public void testDoubleClose() {
125 AtomicInteger before = new AtomicInteger();
126 AtomicInteger onClose = new AtomicInteger();
127
128 DoubleStream.of(1, 2).peek(e -> before.getAndIncrement()).
129 flatMap(i -> DoubleStream.of(i, i).onClose(onClose::getAndIncrement)).count();
130 assertEquals(before.get(), onClose.get());
131 }
132
133 @Test(dataProvider = "StreamTestData<Integer>", dataProviderClass = StreamTestDataProvider.class)
134 public void testOps(String name, TestData.OfRef<Integer> data) {
135 Collection<Integer> result = exerciseOps(data, s -> s.flatMap(mfId));
136 assertEquals(data.size(), result.size());
137
138 result = exerciseOps(data, s -> s.flatMap(mfNull));
139 assertEquals(0, result.size());
140
141 result = exerciseOps(data, s-> s.flatMap(e -> Stream.empty()));
142 assertEquals(0, result.size());
143
144 exerciseOps(data, s -> s.flatMap(mfLt));
145 exerciseOps(data, s -> s.flatMap(integerRangeMapper));
146 exerciseOps(data, s -> s.flatMap((Integer e) -> IntStream.range(0, e).boxed().limit(10)));
147 }
148
149 //
150
151 @Test(dataProvider = "IntStreamTestData", dataProviderClass = IntStreamTestDataProvider.class)
152 public void testIntOps(String name, TestData.OfInt data) {
153 Collection<Integer> result = exerciseOps(data, s -> s.flatMap(i -> Collections.singleton(i).stream().mapToInt(j -> j)));
154 assertEquals(data.size(), result.size());
155 assertContents(data, result);
156
157 result = exerciseOps(data, s -> s.flatMap(i -> IntStream.empty()));
158 assertEquals(0, result.size());
159
160 exerciseOps(data, s -> s.flatMap(e -> IntStream.range(0, e)));
161 exerciseOps(data, s -> s.flatMap(e -> IntStream.range(0, e).limit(10)));
162 }
163
164 //
165
166 @Test(dataProvider = "LongStreamTestData", dataProviderClass = LongStreamTestDataProvider.class)
167 public void testLongOps(String name, TestData.OfLong data) {
168 Collection<Long> result = exerciseOps(data, s -> s.flatMap(i -> Collections.singleton(i).stream().mapToLong(j -> j)));
169 assertEquals(data.size(), result.size());
170 assertContents(data, result);
171
172 result = exerciseOps(data, s -> LongStream.empty());
173 assertEquals(0, result.size());
174
175 exerciseOps(data, s -> s.flatMap(e -> LongStream.range(0, e)));
176 exerciseOps(data, s -> s.flatMap(e -> LongStream.range(0, e).limit(10)));
177 }
178
179 //
180
181 @Test(dataProvider = "DoubleStreamTestData", dataProviderClass = DoubleStreamTestDataProvider.class)
182 public void testDoubleOps(String name, TestData.OfDouble data) {
183 Collection<Double> result = exerciseOps(data, s -> s.flatMap(i -> Collections.singleton(i).stream().mapToDouble(j -> j)));
184 assertEquals(data.size(), result.size());
185 assertContents(data, result);
186
187 result = exerciseOps(data, s -> DoubleStream.empty());
188 assertEquals(0, result.size());
189
190 exerciseOps(data, s -> s.flatMap(e -> IntStream.range(0, (int) e).asDoubleStream()));
191 exerciseOps(data, s -> s.flatMap(e -> IntStream.range(0, (int) e).limit(10).asDoubleStream()));
192 }
193 }
|
1 /*
2 * Copyright (c) 2012, 2016, 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 flat-map operations
27 * @bug 8044047 8076458
28 */
29
30 package org.openjdk.tests.java.util.stream;
31
32 import org.testng.annotations.Test;
33
34 import java.util.Arrays;
35 import java.util.Collection;
36 import java.util.Collections;
37 import java.util.concurrent.atomic.AtomicInteger;
38 import java.util.function.Function;
39 import java.util.function.Supplier;
40 import java.util.stream.DoubleStream;
41 import java.util.stream.DoubleStreamTestDataProvider;
42 import java.util.stream.IntStream;
43 import java.util.stream.IntStreamTestDataProvider;
44 import java.util.stream.LongStream;
45 import java.util.stream.LongStreamTestDataProvider;
46 import java.util.stream.OpTestCase;
47 import java.util.stream.Stream;
113 @Test
114 public void testLongClose() {
115 AtomicInteger before = new AtomicInteger();
116 AtomicInteger onClose = new AtomicInteger();
117
118 LongStream.of(1, 2).peek(e -> before.getAndIncrement()).
119 flatMap(i -> LongStream.of(i, i).onClose(onClose::getAndIncrement)).count();
120 assertEquals(before.get(), onClose.get());
121 }
122
123 @Test
124 public void testDoubleClose() {
125 AtomicInteger before = new AtomicInteger();
126 AtomicInteger onClose = new AtomicInteger();
127
128 DoubleStream.of(1, 2).peek(e -> before.getAndIncrement()).
129 flatMap(i -> DoubleStream.of(i, i).onClose(onClose::getAndIncrement)).count();
130 assertEquals(before.get(), onClose.get());
131 }
132
133 @Test(dataProvider = "StreamTestData<Integer>.small", dataProviderClass = StreamTestDataProvider.class)
134 public void testOps(String name, TestData.OfRef<Integer> data) {
135 Collection<Integer> result = exerciseOps(data, s -> s.flatMap(mfId));
136 assertEquals(data.size(), result.size());
137
138 result = exerciseOps(data, s -> s.flatMap(mfNull));
139 assertEquals(0, result.size());
140
141 result = exerciseOps(data, s-> s.flatMap(e -> Stream.empty()));
142 assertEquals(0, result.size());
143
144 exerciseOps(data, s -> s.flatMap(mfLt));
145 exerciseOps(data, s -> s.flatMap(integerRangeMapper));
146 exerciseOps(data, s -> s.flatMap((Integer e) -> IntStream.range(0, e).boxed().limit(10)));
147 }
148
149 //
150
151 @Test(dataProvider = "IntStreamTestData.small", dataProviderClass = IntStreamTestDataProvider.class)
152 public void testIntOps(String name, TestData.OfInt data) {
153 Collection<Integer> result = exerciseOps(data, s -> s.flatMap(i -> Collections.singleton(i).stream().mapToInt(j -> j)));
154 assertEquals(data.size(), result.size());
155 assertContents(data, result);
156
157 result = exerciseOps(data, s -> s.flatMap(i -> IntStream.empty()));
158 assertEquals(0, result.size());
159
160 exerciseOps(data, s -> s.flatMap(e -> IntStream.range(0, e)));
161 exerciseOps(data, s -> s.flatMap(e -> IntStream.range(0, e).limit(10)));
162 }
163
164 //
165
166 @Test(dataProvider = "LongStreamTestData.small", dataProviderClass = LongStreamTestDataProvider.class)
167 public void testLongOps(String name, TestData.OfLong data) {
168 Collection<Long> result = exerciseOps(data, s -> s.flatMap(i -> Collections.singleton(i).stream().mapToLong(j -> j)));
169 assertEquals(data.size(), result.size());
170 assertContents(data, result);
171
172 result = exerciseOps(data, s -> LongStream.empty());
173 assertEquals(0, result.size());
174
175 exerciseOps(data, s -> s.flatMap(e -> LongStream.range(0, e)));
176 exerciseOps(data, s -> s.flatMap(e -> LongStream.range(0, e).limit(10)));
177 }
178
179 //
180
181 @Test(dataProvider = "DoubleStreamTestData.small", dataProviderClass = DoubleStreamTestDataProvider.class)
182 public void testDoubleOps(String name, TestData.OfDouble data) {
183 Collection<Double> result = exerciseOps(data, s -> s.flatMap(i -> Collections.singleton(i).stream().mapToDouble(j -> j)));
184 assertEquals(data.size(), result.size());
185 assertContents(data, result);
186
187 result = exerciseOps(data, s -> DoubleStream.empty());
188 assertEquals(0, result.size());
189
190 exerciseOps(data, s -> s.flatMap(e -> IntStream.range(0, (int) e).asDoubleStream()));
191 exerciseOps(data, s -> s.flatMap(e -> IntStream.range(0, (int) e).limit(10).asDoubleStream()));
192 }
193 }
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