ZipWithIndexMappingGatherer.java

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package com.pivovarit.gatherers;
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import java.util.Objects;
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import java.util.concurrent.atomic.AtomicLong;
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import java.util.function.BiFunction;
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import java.util.function.Supplier;
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import java.util.stream.Gatherer;
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record ZipWithIndexMappingGatherer<T, R>(BiFunction<Long, ? super T, ? extends R> mapper)
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  implements Gatherer<T, AtomicLong, R> {
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    ZipWithIndexMappingGatherer {
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        Objects.requireNonNull(mapper, "mapper can't be null");
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    }
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    @Override
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    public Supplier<AtomicLong> initializer() {
18 1 1. initializer : replaced return value with null for com/pivovarit/gatherers/ZipWithIndexMappingGatherer::initializer → KILLED
 
        return AtomicLong::new;
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    }
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    @Override
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    public Integrator<AtomicLong, T, R> integrator() {
23 3 1. lambda$integrator$0 : replaced boolean return with true for com/pivovarit/gatherers/ZipWithIndexMappingGatherer::lambda$integrator$0 → SURVIVED
2. lambda$integrator$0 : replaced boolean return with false for com/pivovarit/gatherers/ZipWithIndexMappingGatherer::lambda$integrator$0 → SURVIVED
3. integrator : replaced return value with null for com/pivovarit/gatherers/ZipWithIndexMappingGatherer::integrator → KILLED
 
        return Integrator.ofGreedy((state, element, downstream) -> downstream.push(mapper.apply(state.getAndIncrement(), element)));
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    }
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}

Mutations

18

1.1
Location : initializer
Killed by : com.pivovarit.gatherers.blackbox.ZipWithIndexMapperTest.[engine:junit-jupiter]/[class:com.pivovarit.gatherers.blackbox.ZipWithIndexMapperTest]/[method:shouldZipEmptyStream()] replaced return value with null for com/pivovarit/gatherers/ZipWithIndexMappingGatherer::initializer → KILLED

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1.1
Location : lambda$integrator$0
Killed by : none replaced boolean return with true for com/pivovarit/gatherers/ZipWithIndexMappingGatherer::lambda$integrator$0 → SURVIVED Covering tests

2.2
Location : integrator
Killed by : com.pivovarit.gatherers.blackbox.ZipWithIndexMapperTest.[engine:junit-jupiter]/[class:com.pivovarit.gatherers.blackbox.ZipWithIndexMapperTest]/[method:shouldZipWithIndex()] replaced return value with null for com/pivovarit/gatherers/ZipWithIndexMappingGatherer::integrator → KILLED

3.3
Location : lambda$integrator$0
Killed by : none replaced boolean return with false for com/pivovarit/gatherers/ZipWithIndexMappingGatherer::lambda$integrator$0 → SURVIVED Covering tests

Active mutators

Tests examined


Report generated by PIT 1.22.0