text: describe("Chapter one tests", function () {
      /**
       * If the name throws an error, the variable will be undefined
       */
      it("Can display valid variable names", function () {
          var x = eval(1);
          var y = eval(z = 2);
          expect(x).toEqual(1);
          expect(y).toEqual(2);
          try {
              var numberFirst = eval("1Name = 1");
          } catch (ignore) {}
          expect(numberFirst).toBeUndefined();
  
          try {
              var $name = 1;
          } catch (ignore) {}
  
          expect($name).toEqual(1);
  
          try {
              var exclamation = eval("name! = 1");
          } catch (ignore) {}
          expect(exclamation).toBeUndefined();
  
          try {
              var questionMark = eval("name? = 1");
          } catch (ignore){}
          expect(questionMark).toBeUndefined();
          try {
              var nameUnderscore = eval("name_$ = 1");
          } catch(ignore) {}
          expect(nameUnderscore).toEqual(1);
  
      });
  });
  