RomLoader.java

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package com.rox.cartridge;
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import java.io.IOException;
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import java.nio.file.Files;
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import java.nio.file.Path;
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/** Loads a ".nes" file into a {@link Cartridge}, dispatching to a {@link Mapper} by header mapper number. */
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public final class RomLoader {
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    private RomLoader(){
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    }
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    /** Read and parse a ".nes" file from disk. */
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    public static Cartridge load(final Path path) throws IOException {
14 1 1. load : replaced return value with null for com/rox/cartridge/RomLoader::load → KILLED
 
        return fromBytes(Files.readAllBytes(path));
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    }
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    /** Parse already-in-memory iNES file bytes (e.g. a synthetic ROM built for a test/demo). */
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    public static Cartridge fromBytes(final byte[] fileBytes){
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        final INesRom rom = INesRom.parse(fileBytes);
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        final Mapper mapper = switch (rom.mapperNumber()){
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            case 0 -> new NromMapper(rom);
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            case 1 -> new Mmc1Mapper(rom);
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            case 4 -> new Mmc3Mapper(rom);
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            default -> throw new IllegalArgumentException("Unsupported mapper: " + rom.mapperNumber());
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        };
26 1 1. fromBytes : replaced return value with null for com/rox/cartridge/RomLoader::fromBytes → KILLED
 
        return new Cartridge(rom, mapper);
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    }
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}

Mutations

14

1.1
Location : load
Killed by : com.rox.cartridge.RomLoaderTest.[engine:junit-jupiter]/[class:com.rox.cartridge.RomLoaderTest]/[method:loadReadsAFileFromDisk(java.nio.file.Path)] replaced return value with null for com/rox/cartridge/RomLoader::load → KILLED

26

1.1
Location : fromBytes
Killed by : com.rox.cartridge.RomLoaderTest.[engine:junit-jupiter]/[class:com.rox.cartridge.RomLoaderTest]/[method:loadReadsAFileFromDisk(java.nio.file.Path)] replaced return value with null for com/rox/cartridge/RomLoader::fromBytes → KILLED

Active mutators

Tests examined


Report generated by PIT 1.22.1