/*
 * The MIT License (MIT)
 *
 * Copyright (c) 2017-2024 Yegor Bugayenko
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included
 * in all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */

package org.jpeek.metrics;

import org.cactoos.list.ListOf;
import org.junit.jupiter.api.Test;

/**
 * Test case for LORM.
 * LORM = Logical Relatedness of Methods.
 * @since 0.28
 * @checkstyle JavadocMethodCheck (500 lines)
 */
final class LormTest {

    @Test
    void calculatesVariables() throws Exception {
        final MetricBase.Report report = new MetricBase(
            "org/jpeek/metrics/LORM.xsl"
        ).transform(
            "TwoCommonMethods"
        );
        final int methods = 6;
        report.assertVariable("N", methods);
        report.assertVariable(
            "R",
            new ListOf<>(
                "methodTwo   -> methodOne",
                "methodThree -> methodOne",
                "methodFive  -> methodFour",
                "methodSix   -> methodFour"
            ).size()
        );
        report.assertVariable(
            "RN",
            methods * (methods - 1) / 2
        );
    }
}
