mavenExecutionRequest.setDegreeOfConcurrency(1);
        final MavenSession session = new MavenSession(null, null, mavenExecutionRequest, defaultMavenExecutionResult);
        final ProjectDependencyGraphStub dependencyGraphStub = new ProjectDependencyGraphStub();
        session.setProjectDependencyGraph(dependencyGraphStub);
        session.setProjects(dependencyGraphStub.getSortedProjects());
        return session;
    }

import org.apache.maven.lifecycle.internal.stub.ProjectDependencyGraphStub;
import org.apache.maven.project.MavenProject;
import org.junit.jupiter.api.Test;

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

class ConcurrencyDependencyGraphTest {

    @Test
    void testGraph() throws Exception {

        ProjectBuildList projectBuildList =

                                ProjectDependencyGraphStub.A,
                                ProjectDependencyGraphStub.B,
                                ProjectDependencyGraphStub.C,
                                ProjectDependencyGraphStub.X,
                                ProjectDependencyGraphStub.Y,
                                ProjectDependencyGraphStub.Z);

                "Expected " + cProjects + " to contain " + ProjectDependencyGraphStub.C);
        assertTrue(
                cProjects.contains(ProjectDependencyGraphStub.B),
                "Expected " + cProjects + " to contain " + ProjectDependencyGraphStub.B);
    }

import static org.apache.maven.lifecycle.internal.stub.ProjectDependencyGraphStub.A;
import static org.apache.maven.lifecycle.internal.stub.ProjectDependencyGraphStub.B;
import static org.apache.maven.lifecycle.internal.stub.ProjectDependencyGraphStub.C;
import static org.apache.maven.lifecycle.internal.stub.ProjectDependencyGraphStub.X;
import static org.apache.maven.lifecycle.internal.stub.ProjectDependencyGraphStub.Y;

        assertEquals(
                Arrays.asList(
                        ProjectDependencyGraphStub.A,
                        ProjectDependencyGraphStub.B,
                        ProjectDependencyGraphStub.C,
                        ProjectDependencyGraphStub.X,
                        ProjectDependencyGraphStub.Y,
                        ProjectDependencyGraphStub.Z),
                currentProjects);
    }

        phaseRecorder.observeExecution(mojoExecution1);

        assertTrue(ProjectDependencyGraphStub.A.hasLifecyclePhase(mojoExecution1.getLifecyclePhase()));
        assertFalse(ProjectDependencyGraphStub.A.hasLifecyclePhase(mojoExecution2.getLifecyclePhase()));

        assertFalse(phaseRecorder.isDifferentPhase(mojoExecution1));
        assertTrue(phaseRecorder.isDifferentPhase(mojoExecution2));
    }

    @Test
    void testResolveBuildPlan() throws Exception {
        MavenSession original = ProjectDependencyGraphStub.getMavenSession();

        final TaskSegment taskSegment1 = new TaskSegment(false);
        final MavenSession session1 = original.clone();
        session1.setCurrentProject(ProjectDependencyGraphStub.A);

        final BuilderCommon builderCommon = getBuilderCommon(logger);
        final MavenExecutionPlan plan =

        final TaskSegment taskSegment1 = new TaskSegment(false, goalTask1, goalTask2);
        final MavenSession session1 = ProjectDependencyGraphStub.getMavenSession(ProjectDependencyGraphStub.A);

        MavenExecutionPlan executionPlan = lifecycleExecutionPlanCalculator.calculateExecutionPlan(
                session1, ProjectDependencyGraphStub.A, taskSegment1.getTasks());
        assertEquals(2, executionPlan.size());

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.assertTrue;

/**
 */
class ProjectBuildListTest {
    @Test
    void testGetByTaskSegment() throws Exception {
        final MavenSession session = ProjectDependencyGraphStub.getMavenSession();