!7

p-exp {
  assertFalseVerbose(ExpectANumberOfLines(2).check(5));
  assertFalseVerbose(ExpectANumberOfLines(2).check("one line"));
  assertFalseVerbose(ExpectANumberOfLines(2).check("one line\n"));
  assertTrueVerbose(ExpectANumberOfLines(2).check("one line\ntwo lines"));
  assertTrueVerbose(ExpectANumberOfLines(2).check("one line\ntwo lines\n"));
  
  assertTrueVerbose(ExpectContainsOnce_string("."), "a.b"));
  assertFalseVerbose(ExpectContainsOnce_string("."), "a..b"));
  assertFalseVerbose(ExpectContainsOnce_string("."), "a"));
}