1 /*
2 * Licensed to the Apache Software Foundation (ASF) under one
3 * or more contributor license agreements. See the NOTICE file
4 * distributed with this work for additional information
5 * regarding copyright ownership. The ASF licenses this file
6 * to you under the Apache License, Version 2.0 (the
7 * "License"); you may not use this file except in compliance
8 * with the License. You may obtain a copy of the License at
9 *
10 * http://www.apache.org/licenses/LICENSE-2.0
11 *
12 * Unless required by applicable law or agreed to in writing,
13 * software distributed under the License is distributed on an
14 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15 * KIND, either express or implied. See the License for the
16 * specific language governing permissions and limitations
17 * under the License.
18 */
19 package org.apache.maven.surefire.junitcore.pc;
20
21 import org.junit.runners.ParentRunner;
22
23 /**
24 * We need to wrap runners in a suite and count children of these runners.
25 * <br>
26 * Old JUnit versions do not cache children after the first call of
27 * {@link org.junit.runners.ParentRunner#getChildren()}.
28 * Due to performance reasons, the children have to be observed just once.
29 *
30 * @author tibor17 (Tibor Digana)
31 * @see ParallelComputerBuilder
32 * @since 2.17
33 */
34 final class WrappedRunners {
35 final ParentRunner wrappingSuite;
36
37 final long embeddedChildrenCount;
38
39 WrappedRunners(ParentRunner wrappingSuite, long embeddedChildrenCount) {
40 this.wrappingSuite = wrappingSuite;
41 this.embeddedChildrenCount = embeddedChildrenCount;
42 }
43
44 WrappedRunners() {
45 this(null, 0);
46 }
47 }