1 /*

     2  * Copyright (c) 2014, 2017, 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 package com.oracle.mxtool.junit;

    24 

    25 import java.util.HashMap;

    26 import java.util.Map;

    27 

    28 import org.junit.runner.Description;

    29 

    30 /**

    31  * Timing support for JUnit test runs.

    32  */

    33 class TimingDecorator extends MxRunListenerDecorator {

    34 

    35     private long startTime;

    36     private long classStartTime;

    37     private Description currentTest;

    38     final Map<Class<?>, Long> classTimes;

    39     final Map<Description, Long> testTimes;

    40 

    41     TimingDecorator(MxRunListener l) {

    42         super(l);

    43         this.classTimes = new HashMap<>();

    44         this.testTimes = new HashMap<>();

    45     }

    46 

    47     @Override

    48     public void testClassStarted(Class<?> clazz) {

    49         classStartTime = System.nanoTime();

    50         super.testClassStarted(clazz);

    51     }

    52 

    53     @Override

    54     public void testClassFinished(Class<?> clazz, int numPassed, int numFailed) {

    55         long totalTime = System.nanoTime() - classStartTime;

    56         super.testClassFinished(clazz, numPassed, numFailed);

    57         if (beVerbose()) {

    58             getWriter().print(' ' + valueToString(totalTime));

    59         }

    60         classTimes.put(clazz, totalTime / 1_000_000);

    61     }

    62 

    63     @Override

    64     public void testStarted(Description description) {

    65         currentTest = description;

    66         startTime = System.nanoTime();

    67         super.testStarted(description);

    68     }

    69 

    70     @Override

    71     public void testFinished(Description description) {

    72         long totalTime = System.nanoTime() - startTime;

    73         super.testFinished(description);

    74         if (beVerbose()) {

    75             getWriter().print(" " + valueToString(totalTime));

    76         }

    77         currentTest = null;

    78         testTimes.put(description, totalTime / 1_000_000);

    79     }

    80 

    81     private static String valueToString(long valueNS) {

    82         long timeWholeMS = valueNS / 1_000_000;

    83         long timeFractionMS = (valueNS / 100_000) % 10;

    84         return String.format("%d.%d ms", timeWholeMS, timeFractionMS);

    85     }

    86 

    87     /**

    88      * Gets the test currently starting but not yet completed along with the number of milliseconds

    89      * it has been executing.

    90      *

    91      * @return {@code null} if there is no test currently executing

    92      */

    93     public Object[] getCurrentTestDuration() {

    94         Description current = currentTest;

    95         if (current != null) {

    96             long timeMS = (System.nanoTime() - startTime) / 1_000_000;

    97             return new Object[]{current, timeMS};

    98         }

    99         return null;

   100     }

   101 }