//setup
RelatedIssue relatedIssue = issueCard.getRelatedIssues().get(0);
int relatedIssuesCount = issueCard.getRelatedIssues().size();
//run command
new DeleteRelatedIssueCommand(relatedIssue).runWithoutUnicaseCommand();
//check
assertEquals(relatedIssuesCount-1, issueCard.getRelatedIssues().size());
}