!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(".").check("a.b"));
  assertFalseVerbose(ExpectContainsOnce_string(".").check("a..b"));
  assertFalseVerbose(ExpectContainsOnce_string(".").check("a"));
  
  assertTrueVerbose(ExpectForEachLine(ExpectContainsOnce_string(".")).check("a.b\nc.d"));
  assertFalseVerbose(ExpectForEachLine(ExpectContainsOnce_string(".")).check("a.b\nc,d"));
}