term.setVisibleContent(content);
newDescription.getContent().add(term);
//run command
new UpdateIssueCardDescriptionCommand(issueCard, newDescription).runWithoutUnicaseCommand();
//check results
assertEquals(1, issueCard.getDescription().getContent().size());
assertEquals(content, ((Term)issueCard.getDescription().getContent().get(0)).getVisibleContent());
}