StopwatchUtils.java

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package com.renomad.minum.testing;
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/**
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 * This class provides some tools for running a virtual stopwatch
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 * while code is running, to examine code speed.
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 * <h3>
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 *     example:
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 * </h3>
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 *
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 * <pre>
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 {@code
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 final var timer = new StopWatch().startTimer();
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 for (var i = 1; i < 5; i++) {
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     doStuff();
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 }
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 final var time = timer.stopTimer();
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 printf("time taken was " + time " + milliseconds");
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 }
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 * </pre>
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 */
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public final class StopwatchUtils {
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    private long startTime;
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    public StopwatchUtils startTimer() {
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        this.startTime = System.currentTimeMillis();
27 1 1. startTimer : replaced return value with null for com/renomad/minum/testing/StopwatchUtils::startTimer → KILLED
 
        return this;
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    }
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    public StopwatchUtils() {
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        startTime = 0;
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    }
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    public long stopTimer() {
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        final var endTime = System.currentTimeMillis();
37 2 1. stopTimer : Replaced long subtraction with addition → TIMED_OUT
2. stopTimer : replaced long return with 0 for com/renomad/minum/testing/StopwatchUtils::stopTimer → KILLED
 
        return endTime - startTime;
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    }
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}

Mutations

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1.1
Location : startTimer
Killed by : com.renomad.minum.utils.MyThreadTests.testMyThread(com.renomad.minum.utils.MyThreadTests) replaced return value with null for com/renomad/minum/testing/StopwatchUtils::startTimer → KILLED

37

1.1
Location : stopTimer
Killed by : none Replaced long subtraction with addition → TIMED_OUT

2.2
Location : stopTimer
Killed by : com.renomad.minum.utils.MyThreadTests.testMyThread(com.renomad.minum.utils.MyThreadTests) replaced long return with 0 for com/renomad/minum/testing/StopwatchUtils::stopTimer → KILLED

Active mutators

Tests examined


Report generated by PIT 1.17.0