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);
        touchFile.delete();

        assertTrue(updateCheckManager.isUpdateRequired(a, remoteRepository));

        file.getParentFile().mkdirs();

    /** {@inheritDoc} */
    public boolean hasClassifier() {
        return artifact.hasClassifier();
    }

    /** {@inheritDoc} */
    public void setFile(File destination) {
        artifact.setFile(destination);
        project.getArtifact().setFile(destination);
    }

    /** {@inheritDoc} */
    public String getBaseVersion() {
        return artifact.getBaseVersion();
    }

        File file = new File(getRepository().getBasedir(), path);

        LocalArtifactResult result = new LocalArtifactResult(request);
        if (file.isFile()) {
            result.setFile(file);
            result.setAvailable(true);
        }

        return result;
    }

    public void add(RepositorySystemSession session, LocalArtifactRegistration request) {
        // noop
    }

        org.eclipse.aether.artifact.Artifact mainArtifact = RepositoryUtils.toArtifact(artifact);
        mainArtifact = mainArtifact.setFile(source);
        request.addArtifact(mainArtifact);

        String versionKey = artifact.getGroupId() + ':' + artifact.getArtifactId();
        String snapshotKey = null;
        if (artifact.isSnapshot()) {

        mainArtifact = mainArtifact.setFile(source);
        request.addArtifact(mainArtifact);

        for (ArtifactMetadata metadata : artifact.getMetadataList()) {
            if (metadata instanceof ProjectArtifactMetadata) {
                org.eclipse.aether.artifact.Artifact pomArtifact = new SubArtifact(mainArtifact, "", "pom");
                pomArtifact = pomArtifact.setFile(((ProjectArtifactMetadata) metadata).getFile());

        setBaseVersionInternal(version);
        versionRange = null;
    }

    @Override
    public String getType() {
        return type;
    }

    @Override
    public void setFile(File file) {
        this.file = file;
    }

    @Override
    public File getFile() {
        return file;
    }

    @Override
    public ArtifactRepository getRepository() {

        // We need to set the file here or the resolver will fail with an NPE, not fully equipped to deal
        // with multiple local repository implementations yet.
        artifact.setFile(artifactFile);

        return artifact;
    }

    @Override
    public String getId() {
        return localRepository.getId();
    }

    @Override

        FileUtils.deleteDirectory(testData);
        testData.mkdirs();

        Artifact artifact = artifactFactory.createProjectArtifact("test", "test", "1.0");
        artifact.setFile(new File(testData, "test-1.0.pom"));
        assertFalse(artifact.getFile().exists());
        return artifact;
    }

    private Artifact createTestArtifact(String directory, String type) throws IOException {

    }

    @Deprecated
    @Override
    public Artifact setFile(File file) {
        File current = getFile();
        if (Objects.equals(current, file)) {
            return this;
        }
        return new RelocatedArtifact(
                artifact.setFile(file), groupId, artifactId, classifier, extension, version, message);
    }

    @Override

    void setVersion(String version);

    String getScope();

    String getType();

    String getClassifier();

    boolean hasClassifier();

    File getFile();

    void setFile(File destination);

    String getBaseVersion();

    void setBaseVersion(String baseVersion);

    String getId();

    String getDependencyConflictId();

    void addMetadata(ArtifactMetadata metadata);