text: describe('dc utils', function() {
      describe('dc.printer.filters', function() {
          var printer;
          beforeEach(function() {
              printer = dc.printers.filters;
          });
          it('print simple string', function() {
              expect(printer(["a"])).toEqual("a");
          });
          it('print range', function() {
              expect(printer([[10, 30]])).toEqual("[10 -> 30]");
          });
          it('print simple string and a range', function() {
              expect(printer(["a", [10, 30]]), "a).toEqual([10 -> 30]");
          });
      });
  
      describe('dc.printer.filter', function() {
          var printer;
          beforeEach(function() {
              printer = dc.printers.filter;
              dc.dateFormat = d3.time.format.utc("%m/%d/%Y");
          });
          it('print simple string', function() {
              expect(printer("a")).toEqual("a");
          });
          it('print date string', function() {
              expect(printer(makeDate(2012, 1, 1))).toEqual("02/01/2012");
          });
          it('print int range', function() {
              expect(printer([10, 30])).toEqual("[10 -> 30]");
          });
          it('print float range', function() {
              expect(printer([10.124244, 30.635623])).toEqual("[10.12 -> 30.64]");
          });
          it('print date range', function() {
              expect(printer([makeDate(2012, 1, 1), makeDate(2012, 1, 15)])).toEqual("[02/01/2012 -> 02/15/2012]");
          });
          it('print single element array', function() {
              expect(printer([makeDate(2012, 1, 1)])).toEqual("02/01/2012");
          });
          it('print null', function() {
              expect(printer(null)).toEqual("");
          });
          it('print zero', function() {
              expect(printer(0)).toEqual(0);
          });
      });
  
      describe('dc.utils.nameToId', function() {
          it('id should be escaped properly', function() {
              expect(dc.utils.nameToId("St. John's")).toEqual("st_johns");
          });
      });
  
      describe('dc.utils.add', function() {
          var add;
          beforeEach(function() {
              add = dc.utils.add;
          });
          it('should be able to add days', function() {
              var date = add(makeDate(2012, 0, 1), 10);
              expect(date.toString()).toEqual((makeDate(2012, 0, 11)).toString());
          });
          it('should be able to add numbers', function() {
              var num = add(10, 10);
              expect(num).toEqual(20);
          });
          it('should be able to add numbers w/ %', function() {
              var num = add(10, "10%");
              expect(num).toEqual(11);
          });
          it('should be able to add negative numbers w/ %', function() {
              var num = add(-10, "10%");
              expect(num).toEqual(-9);
          });
          it('should ignore % when adding dates', function() {
              var date = add(makeDate(2012, 0, 1), "10%");
              expect(date.toString()).toEqual(makeDate(2012, 0, 11).toString());
          });
      });
      describe('dc.utils.subtract', function() {
          var subtract;
          beforeEach(function() {
              subtract = dc.utils.subtract;
          });
          it('should be able to subtract dates', function() {
              var date = subtract(makeDate(2012, 0, 11), 10);
              expect(date.toString()).toEqual((makeDate(2012, 0, 1)).toString());
          });
          it('should be able to subtract numbers', function() {
              var num = subtract(10, 10);
              expect(num).toEqual(0);
          });
          it('should be able to subtract numbers w/ %', function() {
              var num = subtract(10, "10%");
              expect(num).toEqual(9);
          });
          it('should be able to subtract negative numbers w/ %', function() {
              var num = subtract(-10, "10%");
              expect(num).toEqual(-11);
          });
          it('should ignore % when subtracting dates', function() {
              var date = subtract(makeDate(2012, 0, 11), "10%");
              expect(date.toString()).toEqual(makeDate(2012, 0, 1).toString());
          });
      });
  });
  
  
  