public static Env transformEnv(String envName) {
    final String envWellFormName = getWellFormName(envName);

    if (Env.exists(envWellFormName)) {
      return Env.valueOf(envWellFormName);
    }
    // cannot be found or blank name
    return Env.UNKNOWN;
  }
@Test
  public void testTransformEnvBlank() {
    assertEquals(Env.UNKNOWN, Env.transformEnv(""));
    assertEquals(Env.UNKNOWN, Env.transformEnv(null));
    assertEquals(Env.UNKNOWN, Env.transformEnv("   "));
  }