@Test
public void getSafeHtml_BrlCondition_DefinitionOnly() {

    BRLConditionColumn originalColumn = new BRLConditionColumn();
    originalColumn.setDefinition(Arrays.asList(new FactPattern("FactType1")));
    originalColumn.setHeader("condition");
    originalColumn.setHideColumn(false);
    BRLConditionColumn newColumn = new BRLConditionColumn();
    originalColumn.setDefinition(Arrays.asList(new FactPattern("FactType2"), new FactPattern("FactType3")));
    newColumn.setHeader("condition");
    newColumn.setHideColumn(false);
    List<BaseColumnFieldDiff> diffs = originalColumn.diff(newColumn);
    SafeHtml result = helper.getSafeHtml(new UpdateColumnAuditLogEntry("mock user", originalColumn, newColumn, diffs));
    // Definition diffs are currently not supported, maybe #soon?
      assertEquals(getHeaderRepre(newColumn.getHeader()) + getDiffRepre(diffs), result.asString());
    assertEquals(getHeaderRepre(newColumn.getHeader()) + getDiffRepre(new ArrayList<>()), result.asString());
}