Day4.java

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package com.roxoft.aoc.y2015.Day4;
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import com.roxoft.lib.Analyse;
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import com.roxoft.lib.From;
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import java.security.NoSuchAlgorithmException;
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public final class Day4 {
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    /** The problem value being run. */
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    private final String value;
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    private Day4(final String input) {
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        value = input;
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    }
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    /**
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     * @param input the problem value to run the solution against.
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     * @return A new {@link Day4} object for running the solution.
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     */
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    public static Day4 with(final String input) {
21 1 1. with : replaced return value with null for com/roxoft/aoc/y2015/Day4/Day4::with → KILLED
 
        return new Day4(input);
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    }
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    /**
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     * @return The solution to problem A given the current setup.
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     * @throws NoSuchAlgorithmException if MD5 algorithm is not present.
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     */
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    public String solutionA() throws NoSuchAlgorithmException {
29 1 1. solutionA : replaced return value with "" for com/roxoft/aoc/y2015/Day4/Day4::solutionA → KILLED
 
        return solution(5);
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    }
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    /**
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     * @return The solution to problem A given the current setup.
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     * @throws NoSuchAlgorithmException if MD5 algorithm is not present.
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     */
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    public String solutionB() throws NoSuchAlgorithmException {
37 1 1. solutionB : replaced return value with "" for com/roxoft/aoc/y2015/Day4/Day4::solutionB → KILLED
 
        return solution(6);
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    }
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    /**
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     * XXX This is a very slow implementation, worth looking at optimisations.
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     *
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     * @param characterRepetitions number of character repetitions to look for.
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     * @return The solution to problem given the current setup.
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     * @throws NoSuchAlgorithmException if MD5 algorithm is not present.
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     */
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    private String solution(final int characterRepetitions) throws NoSuchAlgorithmException {
48 3 1. solution : Replaced integer addition with subtraction → SURVIVED
2. solution : negated conditional → SURVIVED
3. solution : Replaced integer modulus with multiplication → SURVIVED
 
        final int requiredHexCharacters = characterRepetitions % 2 == 0 ? characterRepetitions : characterRepetitions + 1;
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        int i = 0;
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        while (true) {
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            final String testValue = value + i;
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            final String md5Hex = From.string(testValue).toMD5Hex(requiredHexCharacters);
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54 1 1. solution : negated conditional → KILLED
 
            if (Analyse.string(md5Hex).startsWith(characterRepetitions, '0')) {
55 1 1. solution : replaced return value with "" for com/roxoft/aoc/y2015/Day4/Day4::solution → KILLED
 
                return testValue;
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            }
57 1 1. solution : Changed increment from 1 to -1 → KILLED
 
            i++;
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        }
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    }
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}

Mutations

21

1.1
Location : with
Killed by : com.roxoft.aoc.y2015.Day4.Day4Test.[engine:junit-jupiter]/[class:com.roxoft.aoc.y2015.Day4.Day4Test]/[method:solution_A()] replaced return value with null for com/roxoft/aoc/y2015/Day4/Day4::with → KILLED
29

1.1
Location : solutionA
Killed by : com.roxoft.aoc.y2015.Day4.Day4Test.[engine:junit-jupiter]/[class:com.roxoft.aoc.y2015.Day4.Day4Test]/[method:solution_A()] replaced return value with "" for com/roxoft/aoc/y2015/Day4/Day4::solutionA → KILLED
37

1.1
Location : solutionB
Killed by : com.roxoft.aoc.y2015.Day4.Day4Test.[engine:junit-jupiter]/[class:com.roxoft.aoc.y2015.Day4.Day4Test]/[method:solution_B()] replaced return value with "" for com/roxoft/aoc/y2015/Day4/Day4::solutionB → KILLED
48

1.1
Location : solution
Killed by : none Replaced integer addition with subtraction → SURVIVED

2.2
Location : solution
Killed by : none negated conditional → SURVIVED

3.3
Location : solution
Killed by : none Replaced integer modulus with multiplication → SURVIVED
54

1.1
Location : solution
Killed by : com.roxoft.aoc.y2015.Day4.Day4Test.[engine:junit-jupiter]/[class:com.roxoft.aoc.y2015.Day4.Day4Test]/[method:solution_A()] negated conditional → KILLED
55

1.1
Location : solution
Killed by : com.roxoft.aoc.y2015.Day4.Day4Test.[engine:junit-jupiter]/[class:com.roxoft.aoc.y2015.Day4.Day4Test]/[method:solution_A()] replaced return value with "" for com/roxoft/aoc/y2015/Day4/Day4::solution → KILLED
57

1.1
Location : solution
Killed by : com.roxoft.aoc.y2015.Day4.Day4Test.[engine:junit-jupiter]/[class:com.roxoft.aoc.y2015.Day4.Day4Test]/[method:solution_A()] Changed increment from 1 to -1 → KILLED

Active mutators

Tests examined


Report generated by PIT 1.14.4