maven-core/src/test/java/org/apache/maven/lifecycle/internal/BuildListCalculatorTest.java

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 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
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 *
 *   http://www.apache.org/licenses/LICENSE-2.0
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package org.apache.maven.lifecycle.internal;

import java.util.List;

import org.apache.maven.execution.MavenSession;
import org.apache.maven.lifecycle.internal.stub.LifecycleTaskSegmentCalculatorStub;
import org.apache.maven.lifecycle.internal.stub.ProjectDependencyGraphStub;
import org.junit.jupiter.api.Test;

import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertNotNull;
import static org.junit.jupiter.api.Assertions.assertSame;

class BuildListCalculatorTest {

    @Test
    void testCalculateProjectBuilds() throws Exception {
        LifecycleTaskSegmentCalculator lifecycleTaskSegmentCalculator = getTaskSegmentCalculator();
        BuildListCalculator buildListCalculator = new BuildListCalculator();
        final MavenSession session = ProjectDependencyGraphStub.getMavenSession();
        List<TaskSegment> taskSegments = lifecycleTaskSegmentCalculator.calculateTaskSegments(session);
        final ProjectBuildList buildList = buildListCalculator.calculateProjectBuilds(session, taskSegments);
        final ProjectBuildList segments = buildList.getByTaskSegment(taskSegments.get(0));
        assertEquals(3, taskSegments.size(), "Stub data contains 3 segments");
        assertEquals(6, segments.size(), "Stub data contains 6 items");
        final ProjectSegment build = segments.get(0);
        assertNotNull(build);

        for (ProjectSegment segment : segments) {
            assertSame(session, segment.getSession());
        }
    }

    private static LifecycleTaskSegmentCalculator getTaskSegmentCalculator() {
        return new LifecycleTaskSegmentCalculatorStub();
    }
}