private static final String SHA1_PROPERTY = "sha1";

    private static final String CHANGELIST_PROPERTY = "changelist";

    private static final String REVISION_PROPERTY = "revision";

    @Override
    public boolean isValidProperty(String property) {
        return REVISION_PROPERTY.equals(property)
                || CHANGELIST_PROPERTY.equals(property)
                || SHA1_PROPERTY.equals(property);
    }

        wagon.addExpectedContent("path.sha1", "2a25dc564a3b34f68237fc849066cbc7bb7a36a1");
        wagonManager.getArtifact(artifact, repo, null, false);

        wagon.clearExpectedContent();
        wagon.addExpectedContent("path", "upper-case-checksum");
        wagon.addExpectedContent("path.sha1", "B7BB97D7D0B9244398D9B47296907F73313663E6");

        }
    }

    protected String replaceCiFriendlyVersion(ModelTransformerContext context, String version) {
        if (version != null) {
            for (String key : Arrays.asList("changelist", "revision", "sha1")) {
                String val = context.getUserProperty(key);
                if (val != null) {
                    version = version.replace("${" + key + "}", val);
                }
            }
        }

   */
  @Deprecated
  public static HashFunction sha1() {
    return Sha1Holder.SHA_1;
  }

  private static class Sha1Holder {
    static final HashFunction SHA_1 = new MessageDigestHashFunction("SHA-1", "Hashing.sha1()");
  }

  /** Returns a hash function implementing the SHA-256 algorithm (256 hash bits). */
  public static HashFunction sha256() {
    return Sha256Holder.SHA_256;
  }

        assertEquals("31f30ddbcb1bf8446576f0e64aa4c88a9f055e3c", MessageDigestUtil.digest("SHA-1", text));
        assertEquals("ecb666d778725ec97307044d642bf4d160aabb76f56c0069c71ea25b1e926825", MessageDigestUtil.digest("SHA-256", text));

        try {
            MessageDigestUtil.digest(null, text);
            assertTrue(false);

    /** The key of the configuration. e.g. 0-1 */
    String INDEX_auto_expand_replicas = "index.auto_expand_replicas";

    /** The key of the configuration. e.g. SHA-512 */
    String INDEX_ID_DIGEST_ALGORITHM = "index.id.digest.algorithm";

    /** The key of the configuration. e.g. admin */
    String INDEX_USER_initial_password = "index.user.initial_password";