this.artifactHandlerManager = artifactHandlerManager;
    }

    @Override
    public Artifact createArtifact(String groupId, String artifactId, String version, String scope, String type) {
        return createArtifact(groupId, artifactId, version, scope, type, null, null);
    }

    @Override
    public Artifact createArtifactWithClassifier(

        Artifact artifact = createArtifact(artifactId, version);

        createArtifact(artifact, localRepository());

        return artifact;
    }

    protected Artifact createRemoteArtifact(String artifactId, String version) throws Exception {
        Artifact artifact = createArtifact(artifactId, version);

        createArtifact(artifact, remoteRepository());

        return artifact;

    }

    protected Artifact createArtifact(String id, String version) throws InvalidVersionSpecificationException {
        return createArtifact(id, version, Artifact.SCOPE_COMPILE);
    }

    protected Artifact createArtifact(String id, String version, String scope)
            throws InvalidVersionSpecificationException {
        return createArtifact(id, version, scope, null, false);
    }

    @Test
    void testBuildProject() {
        Artifact artifact = session.createArtifact("org.codehaus.plexus", "plexus-utils", "1.4.5", "pom");

        Project project = project(artifact);
        assertNotNull(project);
    }

    @Test
    void testCollectArtifactDependencies() {
        Artifact artifact =
                session.createArtifact("org.codehaus.plexus", "plexus-container-default", "1.0-alpha-32", "jar");

    @BeforeEach
    void setUp() {
        repositorySystem = new TestRepositorySystem();
    }

    @Test
    void testCacheKey() throws Exception {
        Artifact a1 = repositorySystem.createArtifact("testGroup", "testArtifact", "1.2.3", "jar");
        @SuppressWarnings("deprecation")
        ArtifactRepository lr1 = new DelegatingLocalArtifactRepository(repositorySystem.createDefaultLocalRepository());

                new ArtifactRepositoryPolicy());
    }

    @Override
    public Artifact createArtifact(String groupId, String artifactId, String version, String packaging) {
        return createArtifact(groupId, artifactId, version, null, packaging);
    }

    @Override
    public Artifact createArtifact(String groupId, String artifactId, String version, String scope, String type) {

    @Test
    void testArtifact() throws Exception {
        ArtifactRepository remoteRepository = remoteRepository();

        ArtifactRepository localRepository = localRepository();

        Artifact a = createArtifact("a", "0.0.1-SNAPSHOT");
        File file = new File(localRepository.getBasedir(), localRepository.pathOf(a));
        file.delete();
        a.setFile(file);

        File touchFile = updateCheckManager.getTouchfile(a);

        assertLocalArtifactPresent(b);
    }

    @Override
    protected Artifact createArtifact(String groupId, String artifactId, String version, String type) throws Exception {
        // for the anonymous classes
        return super.createArtifact(groupId, artifactId, version, type);
    }

    @Test

    }

    @Test
    void testPluginArtifactsExpressionReference() throws Exception {
        MojoExecution exec = newMojoExecution();

        Artifact depArtifact = createArtifact("group", "artifact", "1");

        List<Artifact> deps = new ArrayList<>();
        deps.add(depArtifact);

        exec.getMojoDescriptor().getPluginDescriptor().setArtifacts(deps);

            String artifactBasedir = new File(getBasedir(), "src/test/resources/artifact-install").getAbsolutePath();

            Artifact artifact = createArtifact("artifact", "1.0");

            File file = new File(artifactBasedir, "artifact-1.0.jar");
            assertEquals("dummy", new String(Files.readAllBytes(file.toPath()), StandardCharsets.UTF_8).trim());