  @Test
  public void testTraitToUnknownDataFormat() {

    final CdmTypeAttributeDefinition cdmAttribute =
        new CdmTypeAttributeDefinition(
            new ResolveContext(new CdmCorpusDefinition()),
            "SomeAttribute");
    cdmAttribute.getAppliedTraits().add("is.dataFormat.someRandomDataFormat");
    final TraitToPropertyMap traitToPropertyMap = new TraitToPropertyMap(cdmAttribute);

    final String dataFormat = traitToPropertyMap.traitsToDataFormat(false);

    Assert.assertEquals(CdmDataFormat.Unknown.toString(), dataFormat);
  }