src/test/java/org/apache/commons/text/similarity/LevenshteinResultsTest.java

/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
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 * See the License for the specific language governing permissions and
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package org.apache.commons.text.similarity;

import static org.assertj.core.api.Assertions.assertThat;

import org.junit.jupiter.api.Test;

public class LevenshteinResultsTest {

    @Test
    public void testEqualsDifferenceInSubstitutionCount() {
        final Integer integer = 1662;
        final LevenshteinResults levenshteinResults = new LevenshteinResults(integer, integer, integer, integer);
        final LevenshteinResults levenshteinResultsTwo = new LevenshteinResults(integer, integer, integer, null);

        assertThat(levenshteinResults.equals(levenshteinResultsTwo)).isFalse();
    }

    @Test
    public void testEqualsReturningFalse() {
        final Integer integerOne = 1662;
        final Integer integerTwo = 1164;
        final LevenshteinResults levenshteinResults =
                new LevenshteinResults(integerOne, integerOne, integerOne, integerOne);
        final LevenshteinResults levenshteinResultsTwo =
                new LevenshteinResults(integerOne, integerOne, integerTwo, integerTwo);

        assertThat(levenshteinResults.equals(levenshteinResultsTwo)).isFalse();
    }

    @Test
    public void testEqualsSameObject() {
        final Integer integer = 1662;
        final LevenshteinResults levenshteinResults = new LevenshteinResults(integer, integer, integer, null);

        assertThat(levenshteinResults.equals(levenshteinResults)).isTrue();
    }

    @Test
    public void testEqualsWithNonNull() {
        final Integer integer = 1;
        final LevenshteinResults levenshteinResults = new LevenshteinResults(null, integer, integer, null);
        final LevenshteinResults levenshteinResultsTwo = new LevenshteinResults(null, null, null, null);

        assertThat(levenshteinResults.equals(levenshteinResultsTwo)).isFalse();
    }

    @Test
    public void testEqualsWithNull() {
        final Integer integer = -647;
        final LevenshteinResults levenshteinResults = new LevenshteinResults(integer, null, null, integer);

        assertThat(levenshteinResults.equals(null)).isFalse();
    }

}