@Test
public void appendDefaultSeparatorLine() throws Exception {
Connection conn = showDialog(TITLE, TEXT[0] + "\n").get();
final int N = 10;
conn.appendSeparatorLine(N);
char[] chars = new char[N];
Arrays.fill(chars, JTextReporter.DEFAULT_SEPARATOR_CHAR);
String expected = String.format("%s%n%s%n", TEXT[0], String.valueOf(chars));