UnorderedLocalDescriptor.java

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/*******************************************************************************
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 * Copyright (C) 2026, Leo Galambos
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 * All rights reserved.
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 *
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 * Redistribution and use in source and binary forms, with or without
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 * modification, are permitted provided that the following conditions are met:
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 *
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 * 1. Redistributions of source code must retain the above copyright notice,
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 *    this list of conditions and the following disclaimer.
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 *
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 * 2. Redistributions in binary form must reproduce the above copyright notice,
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 *    this list of conditions and the following disclaimer in the documentation
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 *    and/or other materials provided with the distribution.
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 *
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 * 3. Neither the name of the copyright holder nor the names of its contributors
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 *    may be used to endorse or promote products derived from this software
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 *    without specific prior written permission.
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 *
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 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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 * POSSIBILITY OF SUCH DAMAGE.
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 ******************************************************************************/
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package org.egothor.stemmer.trie;
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import java.util.Arrays;
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import java.util.Collections;
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import java.util.HashSet;
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import java.util.Set;
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/**
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 * Local descriptor preserving only unordered {@code getAll()} membership.
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 */
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/* default */ final class UnorderedLocalDescriptor {
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    /**
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     * Unordered distinct values.
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     */
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    private final Set<Object> distinctValues;
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    /**
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     * Creates a descriptor.
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     *
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     * @param distinctValues distinct values
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     */
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    private UnorderedLocalDescriptor(final Set<Object> distinctValues) {
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        this.distinctValues = distinctValues;
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    }
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    /**
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     * Creates a descriptor from an ordered value array.
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     *
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     * @param orderedValues ordered values
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     * @return descriptor
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     */
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    @SuppressWarnings("PMD.UseVarargs")
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    /* default */ static UnorderedLocalDescriptor of(final Object[] orderedValues) {
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        final Set<Object> distinct = new HashSet<>();
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        distinct.addAll(Arrays.asList(orderedValues));
67 1 1. of : replaced return value with null for org/egothor/stemmer/trie/UnorderedLocalDescriptor::of → KILLED
 
        return new UnorderedLocalDescriptor(Collections.unmodifiableSet(distinct));
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    }
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    @Override
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    public int hashCode() {
72 1 1. hashCode : replaced int return with 0 for org/egothor/stemmer/trie/UnorderedLocalDescriptor::hashCode → SURVIVED
 
        return this.distinctValues.hashCode();
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    }
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    @Override
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    public boolean equals(final Object other) {
77 1 1. equals : negated conditional → KILLED
 
        if (this == other) {
78 1 1. equals : replaced boolean return with false for org/egothor/stemmer/trie/UnorderedLocalDescriptor::equals → NO_COVERAGE
 
            return true;
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        }
80 1 1. equals : negated conditional → KILLED
 
        if (!(other instanceof UnorderedLocalDescriptor)) {
81 1 1. equals : replaced boolean return with true for org/egothor/stemmer/trie/UnorderedLocalDescriptor::equals → KILLED
 
            return false;
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        }
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        final UnorderedLocalDescriptor that = (UnorderedLocalDescriptor) other;
84 2 1. equals : replaced boolean return with true for org/egothor/stemmer/trie/UnorderedLocalDescriptor::equals → KILLED
2. equals : replaced boolean return with false for org/egothor/stemmer/trie/UnorderedLocalDescriptor::equals → KILLED
 
        return this.distinctValues.equals(that.distinctValues);
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    }
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}

Mutations

67

1.1
Location : of
Killed by : org.egothor.stemmer.trie.UnorderedLocalDescriptorTest.[engine:junit-jupiter]/[class:org.egothor.stemmer.trie.UnorderedLocalDescriptorTest]/[method:shouldIgnoreOrderingAndDuplicatesInEqualitySemantics()] replaced return value with null for org/egothor/stemmer/trie/UnorderedLocalDescriptor::of → KILLED

72

1.1
Location : hashCode
Killed by : none replaced int return with 0 for org/egothor/stemmer/trie/UnorderedLocalDescriptor::hashCode → SURVIVED Covering tests

77

1.1
Location : equals
Killed by : org.egothor.stemmer.trie.UnorderedLocalDescriptorTest.[engine:junit-jupiter]/[class:org.egothor.stemmer.trie.UnorderedLocalDescriptorTest]/[method:shouldIgnoreOrderingAndDuplicatesInEqualitySemantics()] negated conditional → KILLED

78

1.1
Location : equals
Killed by : none replaced boolean return with false for org/egothor/stemmer/trie/UnorderedLocalDescriptor::equals → NO_COVERAGE

80

1.1
Location : equals
Killed by : org.egothor.stemmer.trie.UnorderedLocalDescriptorTest.[engine:junit-jupiter]/[class:org.egothor.stemmer.trie.UnorderedLocalDescriptorTest]/[method:shouldDefensivelyIsolateDescriptorFromSourceArrayMutation()] negated conditional → KILLED

81

1.1
Location : equals
Killed by : org.egothor.stemmer.trie.UnorderedLocalDescriptorTest.[engine:junit-jupiter]/[class:org.egothor.stemmer.trie.UnorderedLocalDescriptorTest]/[method:shouldIgnoreOrderingAndDuplicatesInEqualitySemantics()] replaced boolean return with true for org/egothor/stemmer/trie/UnorderedLocalDescriptor::equals → KILLED

84

1.1
Location : equals
Killed by : org.egothor.stemmer.trie.UnorderedLocalDescriptorTest.[engine:junit-jupiter]/[class:org.egothor.stemmer.trie.UnorderedLocalDescriptorTest]/[method:shouldIgnoreOrderingAndDuplicatesInEqualitySemantics()] replaced boolean return with true for org/egothor/stemmer/trie/UnorderedLocalDescriptor::equals → KILLED

2.2
Location : equals
Killed by : org.egothor.stemmer.trie.UnorderedLocalDescriptorTest.[engine:junit-jupiter]/[class:org.egothor.stemmer.trie.UnorderedLocalDescriptorTest]/[method:shouldDefensivelyIsolateDescriptorFromSourceArrayMutation()] replaced boolean return with false for org/egothor/stemmer/trie/UnorderedLocalDescriptor::equals → KILLED

Active mutators

Tests examined


Report generated by PIT 1.22.1