GameTimerLogic.java

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package io.github.some_example_name;
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/**
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 * <code>GameTimerLogic</code> implements core countdown logic for the game timer.
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 * <p>
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 * Tracks and decrements time, no LibGDX dependencies for testing timer behaviour.
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 *
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 * @since 2025-11-04
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 */
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public class GameTimerLogic {
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    /** Time remaining in seconds */
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    private float timeLeft;
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    /**
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     * Constructs a new timer logic instance with the starting time.
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     *
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     * @param startSeconds initial time in seconds
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     */
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    public GameTimerLogic(float startSeconds) {
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        this.timeLeft = Math.max(0f, startSeconds);
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    }
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    /**
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     * Decrements timer by the given value, stopping at zero.
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     *
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     * @param delta amount of time to subtract (seconds)
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     */
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    public void decrement(float delta) {
30 2 1. decrement : changed conditional boundary → SURVIVED
2. decrement : negated conditional → KILLED
 
        if (delta <= 0f) {
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            return;
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        }
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34 1 1. decrement : Replaced float subtraction with addition → KILLED
 
        timeLeft -= delta;
35 2 1. decrement : changed conditional boundary → SURVIVED
2. decrement : negated conditional → KILLED
 
        if (timeLeft < 0f) {
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            timeLeft = 0f;
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        }
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    }
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    /**
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     * Returns time remaining in seconds.
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     *
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     * @return time left in seconds
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     */
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    public float getTimeLeft() {
46 1 1. getTimeLeft : replaced float return with 0.0f for io/github/some_example_name/GameTimerLogic::getTimeLeft → KILLED
 
        return timeLeft;
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    }
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    /**
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     * Shows whether the timer has reached zero.
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     *
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     * @return true if time has run out, false otherwise
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     */
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    public boolean isTimeUp() {
55 3 1. isTimeUp : changed conditional boundary → KILLED
2. isTimeUp : negated conditional → KILLED
3. isTimeUp : replaced boolean return with true for io/github/some_example_name/GameTimerLogic::isTimeUp → KILLED
 
        return timeLeft <= 0f;
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    }
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    /**
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     * Adds time to the timer (e.g. bonuses or penalties).
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     *
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     * @param seconds amount of time to add (can be negative)
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     */
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    public void addTime(float seconds) {
64 1 1. addTime : Replaced float addition with subtraction → KILLED
 
        timeLeft += seconds;
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66 2 1. addTime : changed conditional boundary → SURVIVED
2. addTime : negated conditional → KILLED
 
        if (timeLeft < 0f) {
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            timeLeft = 0f;
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        }
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    }
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}

Mutations

30

1.1
Location : decrement
Killed by : io.github.some_example_name.GameTimerTest.[engine:junit-jupiter]/[class:io.github.some_example_name.GameTimerTest]/[method:testIsTimeUpReturnsTrueAtZero()] negated conditional → KILLED

2.2
Location : decrement
Killed by : none changed conditional boundary → SURVIVED
34

1.1
Location : decrement
Killed by : io.github.some_example_name.GameTimerTest.[engine:junit-jupiter]/[class:io.github.some_example_name.GameTimerTest]/[test-template:testTimerClampsAtZero(float, float)]/[test-template-invocation:#1] Replaced float subtraction with addition → KILLED
35

1.1
Location : decrement
Killed by : none changed conditional boundary → SURVIVED

2.2
Location : decrement
Killed by : io.github.some_example_name.GameTimerTest.[engine:junit-jupiter]/[class:io.github.some_example_name.GameTimerTest]/[test-template:testTimerClampsAtZero(float, float)]/[test-template-invocation:#1] negated conditional → KILLED
46

1.1
Location : getTimeLeft
Killed by : io.github.some_example_name.GameTimerTest.[engine:junit-jupiter]/[class:io.github.some_example_name.GameTimerTest]/[test-template:testTimerDecrement(float, float, float)]/[test-template-invocation:#2] replaced float return with 0.0f for io/github/some_example_name/GameTimerLogic::getTimeLeft → KILLED
55

1.1
Location : isTimeUp
Killed by : io.github.some_example_name.GameTimerTest.[engine:junit-jupiter]/[class:io.github.some_example_name.GameTimerTest]/[method:testIsTimeUpReturnsTrueAtZero()] changed conditional boundary → KILLED

2.2
Location : isTimeUp
Killed by : io.github.some_example_name.GameTimerTest.[engine:junit-jupiter]/[class:io.github.some_example_name.GameTimerTest]/[method:testIsTimeUpReturnsFalseWhenTimeRemaining()] negated conditional → KILLED

3.3
Location : isTimeUp
Killed by : io.github.some_example_name.GameTimerTest.[engine:junit-jupiter]/[class:io.github.some_example_name.GameTimerTest]/[method:testIsTimeUpReturnsFalseWhenTimeRemaining()] replaced boolean return with true for io/github/some_example_name/GameTimerLogic::isTimeUp → KILLED
64

1.1
Location : addTime
Killed by : io.github.some_example_name.GameTimerTest.[engine:junit-jupiter]/[class:io.github.some_example_name.GameTimerTest]/[method:addTimeClampsAtZeroWhenNegative()] Replaced float addition with subtraction → KILLED
66

1.1
Location : addTime
Killed by : io.github.some_example_name.GameTimerTest.[engine:junit-jupiter]/[class:io.github.some_example_name.GameTimerTest]/[method:addTimeClampsAtZeroWhenNegative()] negated conditional → KILLED

2.2
Location : addTime
Killed by : none changed conditional boundary → SURVIVED

Active mutators

Tests examined


Report generated by PIT 1.15.0