assertNotNull(resolved);
        assertNotNull(resolved.getPath());
        Optional<Path> op = session.getArtifactPath(resolved);
        assertTrue(op.isPresent(), "Expected " + op + ".isPresent() to return true");
        assertEquals(resolved.getPath(), op.get());
    }

    @Test
    void testBuildProject() {

     *
     * @return an optional containing the path to the project, or empty if not specified
     */
    @Nonnull
    Optional<Path> getPath();

    /**
     * Gets the source of the project to build.
     * This is an alternative to specifying a path, allowing the project to be built from
     * a model source such as a string or input stream.
     *

 */
@Experimental
@Immutable
public interface DownloadedArtifact extends Artifact {

    /**
     * {@return the a path to the file that has been downloaded to the file system}.
     */
    Path getPath();

                    && artifact.getClassifier().isEmpty()) {
                try {
                    Path tmpPom = Files.createTempFile("pom-inliner-", ".xml");
                    String originalPom = Files.readString(artifact.getPath());
                    String interpolatedPom = interpolator.interpolate(
                            originalPom,
                            property -> {
                                if (needsInlining.contains(property)) {

    }

    @Override
    public ModelSource2 getRelatedSource(String relPath) {
        relPath = relPath.replace('\\', File.separatorChar).replace('/', File.separatorChar);

        Path relatedPom = getPath().getParent().resolve(relPath);

        if (Files.isDirectory(relatedPom)) {
            // TODO figure out how to reuse ModelLocator.locatePom(File) here
            relatedPom = relatedPom.resolve("pom.xml");
        }

        URI uri = URI.create("jar:" + gradleRuntimeApiInfoJar.getAbsoluteFile().toURI());
        try (FileSystem fs = FileSystems.newFileSystem(uri, Collections.emptyMap())) {
            Path upgradedPropertiesJson = fs.getPath(UPGRADED_PROPERTIES_FILE);
            if (Files.exists(upgradedPropertiesJson)) {
                Files.copy(upgradedPropertiesJson, to.getAsFile().get().toPath(), StandardCopyOption.REPLACE_EXISTING);
            } else {

    Path createFile() throws IOException {
      Path file = java.nio.file.Files.createTempFile("SinkSourceFile", "txt");
      fileThreadLocal.set(file);
      return file;
    }

    Path getPath() {
      return fileThreadLocal.get();
    }

    // acts as an override in subclasses that implement SourceSinkFactory
    @SuppressWarnings("EffectivelyPrivate")

            } else {
                Path file = artifact.getPath();
                log.debug("  Included {} located at {}", id, file);
                realm.addURL(file.toUri().toURL());
            }
        }
        return CoreExtensionEntry.discoverFrom(
                realm,
                Collections.singleton(artifacts.get(0).getPath().toFile()),

                return value.substring(2, value.length() - 1);
            }
            return value;
        };

        BeanConfigurationPathTranslator translator = path -> new File("base", path.getPath()).getAbsoluteFile();

        DefaultBeanConfigurationRequest request = new DefaultBeanConfigurationRequest();
        request.setBean(bean).setConfiguration(config);

                        + new File(System.getProperty("basedir", "."), "src/test/remote-repo")
                                .getAbsoluteFile()
                                .toURI()
                                .getPath(),
                new DefaultRepositoryLayout(),
                new ArtifactRepositoryPolicy(),
                new ArtifactRepositoryPolicy());
    }