1/*
2 * Copyright (C) 2016 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17package libcore.java.util.function;
18
19import junit.framework.TestCase;
20
21import java.util.function.DoubleConsumer;
22
23public class DoubleConsumerTest extends TestCase {
24
25  public void testAndThen() throws Exception {
26    StringBuilder sb = new StringBuilder();
27    DoubleConsumer one = d -> sb.append("one:" + d + ",");
28    DoubleConsumer two = d -> sb.append("two:" + d);
29
30    one.andThen(two).accept(1.0d);
31    assertEquals("one:1.0,two:1.0", sb.toString());
32  }
33
34  public void testAndThen_null() throws Exception {
35    DoubleConsumer one = s -> {};
36    try {
37      one.andThen(null);
38      fail();
39    } catch (NullPointerException expected) {}
40  }
41}
42