@Test
public void getSafeHtml_ActionWorkItemExecute_Simple() {

    ActionWorkItemCol52 originalColumn = new ActionWorkItemCol52();
    originalColumn.setHeader("action1");
    originalColumn.setHideColumn(false);
    ActionWorkItemCol52 newColumn = new ActionWorkItemCol52();
    newColumn.setHeader("action2");
    newColumn.setHideColumn(true);
    PortableStringParameterDefinition param1 = new PortableStringParameterDefinition();
    param1.setName("param1");
    param1.setValue("value1");
    PortableWorkDefinition def1 = new PortableWorkDefinition();
    def1.setName("def1name");
    def1.addParameter(param1);
    PortableStringParameterDefinition param3 = new PortableStringParameterDefinition();
    param3.setName("param3");
    param3.setValue("value3");
    PortableWorkDefinition def2 = new PortableWorkDefinition();
    def2.setName("def2name");
    def2.addParameter(param3);
    originalColumn.setWorkItemDefinition(def1);
    newColumn.setWorkItemDefinition(def2);
    List<BaseColumnFieldDiff> diffs = originalColumn.diff(newColumn);
    SafeHtml result = helper.getSafeHtml(new UpdateColumnAuditLogEntry("mock user", originalColumn, newColumn, diffs));
    assertEquals(getActionHeaderRepre(newColumn.getHeader()) + getDiffRepre(diffs), result.asString());
}