[rset] New method: ResultSet.one() This method will return exactly one entity while enforcing its existence and unicity. The idea is shamelessly borowed from SQLAlchemy Query.one(). Closes #3352314 [jcr: use len(self) instead of len(self.rows)]

$(document).ready(function() {

  module("air");

  test("test 1", function() {
      equals(a, 4);
  });

});