BuildPlan plan = calculateLifecycleMappings(projects, "all");
        assertNotNull(plan);
        assertIsSuccessor(plan.requiredStep(p, "before:all"), plan.requiredStep(p, "before:each"));
        assertIsSuccessor(plan.requiredStep(p, "before:all"), plan.requiredStep(c1, "before:all"));
        assertIsSuccessor(plan.requiredStep(p, "before:all"), plan.requiredStep(c2, "before:all"));

{* ../../docs_src/background_tasks/tutorial002.py hl[13,15,22,25] *}

Dans cet exemple, les messages seront écrits dans le fichier `log.txt` après que la réponse soit envoyée.

S'il y avait une `query` (paramètre nommé `q`) dans la requête, alors elle sera écrite dans `log.txt` via une tâche d'arrière-plan.

        // There is only a single threadsafe plugin here...
        assertEquals(plan.size() - 1, unSafePlugins.size());
    }

    @Test
    void testFindLastWhenFirst() throws Exception {
        MavenExecutionPlan plan = LifecycleExecutionPlanCalculatorStub.getProjectAExecutionPlan();

        ExecutionPlanItem beerPhase = plan.findLastInPhase(

        final BuilderCommon builderCommon = getBuilderCommon(logger);
        final MavenExecutionPlan plan =
                builderCommon.resolveBuildPlan(session1, ProjectDependencyGraphStub.A, taskSegment1, new HashSet<>());
        assertEquals(
                LifecycleExecutionPlanCalculatorStub.getProjectAExecutionPlan().size(), plan.size());
    }

    @Test
    void testDefaultBindingPluginsWarning() throws Exception {

    public static final int SCHEDULED = 2;
    public static final int EXECUTED = 3;
    public static final int FAILED = 4;
    public static final int SKIPPED = 5;

    public static final String PLAN = "$plan$";
    public static final String SETUP = "$setup$";
    public static final String TEARDOWN = "$teardown$";

    @Nonnull
    final MavenProject project;

    @Nonnull
    final String name;

    void testObserveExecution() throws Exception {
        PhaseRecorder phaseRecorder = new PhaseRecorder(ProjectDependencyGraphStub.A);
        MavenExecutionPlan plan = LifecycleExecutionPlanCalculatorStub.getProjectAExecutionPlan();
        final List<MojoExecution> executions = plan.getMojoExecutions();

        final MojoExecution mojoExecution1 = executions.get(0);
        final MojoExecution mojoExecution2 = executions.get(1);

import org.apache.maven.project.MavenProject;

/**
 * Lifecycle mapping delegate component interface. Calculates project build execution plan given {@link Lifecycle} and
 * lifecycle phase. Standard lifecycles use plugin execution {@code <phase>} or mojo default lifecycle phase to
 * calculate the execution plan, but custom lifecycles can use alternative mapping strategies.
 * <p>

Par défaut, **FastAPI** convertirait automatiquement cette valeur de retour en JSON en utilisant le `jsonable_encoder` expliqué dans [JSON Compatible Encoder](../tutorial/encoder.md){.internal-link target=_blank}.

Ensuite, en arrière-plan, il mettra ces données JSON-compatible (par exemple un `dict`) à l'intérieur d'un `JSONResponse` qui sera utilisé pour envoyer la réponse au client.

import org.apache.maven.project.MavenProject;

/**
 * Lifecycle mapping delegate component interface. Calculates project build execution plan given {@link Lifecycle} and
 * lifecycle phase. Standard lifecycles use plugin execution {@code <phase>} or mojo default lifecycle phase to
 * calculate the execution plan, but custom lifecycles can use alternative mapping strategies.
 */
@Named(DefaultLifecycleMappingDelegate.HINT)
@Singleton

 * lifecycle at all, in which case we wouldn't be needing this class at all ( and
 * ProjectBuildList.getByTaskSegments). Or maybe they should be introduced in the calculation
 * of the execution plan instead, which seems much nicer.
 * </p>
 * <p>
 * Additionally this class contains a clone of the MavenSession, which is *only* needed
 * because it has as notion of a "current" project.
 * </p>