ZipIteratorGatherer.java

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package com.pivovarit.gatherers;
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import java.util.Iterator;
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import java.util.Objects;
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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 ZipIteratorGatherer<T1, T2, R>(Iterator<T2> iterator, BiFunction<? super T1, ? super T2, ? extends R> mapper)
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  implements Gatherer<T1, Iterator<T2>, R> {
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    ZipIteratorGatherer {
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        Objects.requireNonNull(mapper, "mapper can't be null");
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        Objects.requireNonNull(iterator, "iterator can't be null");
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    }
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    @Override
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    public Supplier<Iterator<T2>> initializer() {
19 2 1. initializer : replaced return value with null for com/pivovarit/gatherers/ZipIteratorGatherer::initializer → KILLED
2. lambda$initializer$0 : replaced return value with null for com/pivovarit/gatherers/ZipIteratorGatherer::lambda$initializer$0 → KILLED
 
        return () -> iterator;
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    }
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    @Override
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    public Integrator<Iterator<T2>, T1, R> integrator() {
24 4 1. lambda$integrator$1 : replaced boolean return with true for com/pivovarit/gatherers/ZipIteratorGatherer::lambda$integrator$1 → SURVIVED
2. lambda$integrator$1 : negated conditional → KILLED
3. lambda$integrator$1 : replaced boolean return with false for com/pivovarit/gatherers/ZipIteratorGatherer::lambda$integrator$1 → KILLED
4. integrator : replaced return value with null for com/pivovarit/gatherers/ZipIteratorGatherer::integrator → KILLED
 
        return (state, element, downstream) -> state.hasNext()
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          ? downstream.push(mapper.apply(element, state.next()))
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          : state.hasNext();
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    }
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}

Mutations

19

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

2.2
Location : lambda$initializer$0
Killed by : com.pivovarit.gatherers.blackbox.ZipIteratorMapperTest.[engine:junit-jupiter]/[class:com.pivovarit.gatherers.blackbox.ZipIteratorMapperTest]/[method:shouldZipWithEmpty()] replaced return value with null for com/pivovarit/gatherers/ZipIteratorGatherer::lambda$initializer$0 → KILLED

24

1.1
Location : lambda$integrator$1
Killed by : com.pivovarit.gatherers.blackbox.ZipIteratorMapperTest.[engine:junit-jupiter]/[class:com.pivovarit.gatherers.blackbox.ZipIteratorMapperTest]/[method:shouldZipWithEmpty()] negated conditional → KILLED

2.2
Location : lambda$integrator$1
Killed by : none replaced boolean return with true for com/pivovarit/gatherers/ZipIteratorGatherer::lambda$integrator$1 → SURVIVED Covering tests

3.3
Location : lambda$integrator$1
Killed by : com.pivovarit.gatherers.blackbox.ZipIteratorTest.[engine:junit-jupiter]/[class:com.pivovarit.gatherers.blackbox.ZipIteratorTest]/[method:shouldZipWithShorter()] replaced boolean return with false for com/pivovarit/gatherers/ZipIteratorGatherer::lambda$integrator$1 → KILLED

4.4
Location : integrator
Killed by : com.pivovarit.gatherers.blackbox.ZipIteratorMapperTest.[engine:junit-jupiter]/[class:com.pivovarit.gatherers.blackbox.ZipIteratorMapperTest]/[method:shouldZipWithEmpty()] replaced return value with null for com/pivovarit/gatherers/ZipIteratorGatherer::integrator → KILLED

Active mutators

Tests examined


Report generated by PIT 1.17.1