1 package org.apache.maven.surefire.junitcore.pc;
2
3 /*
4 * Licensed to the Apache Software Foundation (ASF) under one
5 * or more contributor license agreements. See the NOTICE file
6 * distributed with this work for additional information
7 * regarding copyright ownership. The ASF licenses this file
8 * to you under the Apache License, Version 2.0 (the
9 * "License"); you may not use this file except in compliance
10 * with the License. You may obtain a copy of the License at
11 *
12 * http://www.apache.org/licenses/LICENSE-2.0
13 *
14 * Unless required by applicable law or agreed to in writing,
15 * software distributed under the License is distributed on an
16 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
17 * KIND, either express or implied. See the License for the
18 * specific language governing permissions and limitations
19 * under the License.
20 */
21
22 import org.junit.rules.TestWatchman;
23 import org.junit.runners.model.FrameworkMethod;
24
25 import java.util.concurrent.TimeUnit;
26
27 /**
28 * @author Tibor Digana (tibor17)
29 * @since 2.16
30 */
31 final class Stopwatch extends TestWatchman
32 {
33 private long startNanos;
34
35 long stop()
36 {
37 return TimeUnit.MILLISECONDS.convert(System.nanoTime() - startNanos, TimeUnit.NANOSECONDS);
38 }
39
40 @Override
41 public void starting(FrameworkMethod method)
42 {
43 startNanos = System.nanoTime();
44 }
45 }