Conway's rules tests better names

conwaysRulesTests.js

describe("rules", function() {
  describe("rule to go on living", function() {
    it("does't go on living because of overpopulation", function() {
      expect(rules.goesOnLivingWith(4)).toBe(false);
    });
     
    it("does't go on living because of underpopulation", function() {
      expect(rules.goesOnLivingWith(1)).toBe(false);
    });
     
    it("goes on living", function() {
      expect(rules.goesOnLivingWith(3)).toBe(true);
      expect(rules.goesOnLivingWith(2)).toBe(true);
    });
  });
   
  describe("rule to be created", function() {
    it("has enough neighbors to be created", function () {
      expect(rules.isCreatedWith(3)).toBe(true);
    });
     
    it("has not enough neighbors to be created", function () {
      expect(rules.isCreatedWith(1)).toBe(false);
    });
     
    it("has too many neighbors to be created", function () {
      expect(rules.isCreatedWith(4)).toBe(false);
    });
  });
});