ModelSource source = getSource(groupId, artifactId);
                if (source == null) {
                    // we need to check the whole reactor in case it's a dependency
                    loadFullReactor();
                    source = getSource(groupId, artifactId);
                }
                if (source != null) {

    /**
     * Checks whether a given artifact version is considered a {@code SNAPSHOT} or not.
     * <p>
     * Shortcut for {@code getService(ArtifactManager.class).isSnapshot(...)}.
     * <p>
     * In case there is {@link Artifact} in scope, the recommended way to perform this check is
     * use of {@link Artifact#isSnapshot()} instead.
     *
     * @param version artifact version

                    .repositories(List.of(central))
                    .pluginRepositories(List.of(centralWithNoUpdate))
                    .build();
        }

        // for the special case of a drive-relative Windows path, make sure it's absolute to save plugins from trouble
        String localRepository = effective.getLocalRepository();
        if (localRepository != null && !localRepository.isEmpty()) {

        if (metadataFile.length() == 0) {
            if (!metadataFile.delete()) {
                // sleep for 10ms just in case this is windows holding a file lock
                try {
                    Thread.sleep(10);
                } catch (InterruptedException e) {
                    // ignore
                }

        switch (artifactRepositoryPolicy) {
            case RepositoryPolicy.CHECKSUM_POLICY_FAIL:
                return RepositoryPolicy.CHECKSUM_POLICY_FAIL;
            case RepositoryPolicy.CHECKSUM_POLICY_IGNORE:
                return RepositoryPolicy.CHECKSUM_POLICY_IGNORE;
            case RepositoryPolicy.CHECKSUM_POLICY_WARN:
                return RepositoryPolicy.CHECKSUM_POLICY_WARN;

    int getValidationLevel();

    boolean isTwoPhaseBuilding();

    boolean isLocationTracking();

    /**
     * Indicates if the model to be built is a local project or a dependency.
     * In case the project is loaded externally from a remote repository (as a dependency or
     * even as an external parent), the POM will be parsed in a lenient way.  Local POMs
     * are parsed more strictly.
     */

        wagon.clearExpectedContent();
        wagon.addExpectedContent("path", "lower-case-checksum");
        wagon.addExpectedContent("path.sha1", "2a25dc564a3b34f68237fc849066cbc7bb7a36a1");
        wagonManager.getArtifact(artifact, repo, null, false);

        wagon.clearExpectedContent();
        wagon.addExpectedContent("path", "upper-case-checksum");

     * on the command line.
     */
    private List<MavenProject> projects;

    /**
     * The full set of projects before any potential constraining by --projects. Useful in the case where you want to
     * build a smaller set of projects but perform other operations in the context of your reactor.
     */
    private List<MavenProject> allProjects;

    private MavenProject topLevelProject;

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

@PlexusTest
class PomConstructionTest {
    private static String BASE_DIR = "src/test";

    private static String BASE_POM_DIR = BASE_DIR + "/resources-project-builder";

    private static String BASE_MIXIN_DIR = BASE_DIR + "/resources-mixins";

    @Inject
    private DefaultProjectBuilder projectBuilder;

    @Inject

    public void setModelEncoding(String modelEncoding) {
        update(getDelegate().with().modelEncoding(modelEncoding).build());
    }

    /**
     * Gets the base directory for the corresponding project (if any).
     *
     * @return The base directory for the corresponding project or {@code null} if this model does not belong to a local
     *         project (e.g. describes the metadata of some artifact from the repository).