html5 boiler plate
[scannr.git] / js / flotr2 / spec / Color.js
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describe('Colors', function () {
 
  describe('Color Construction', function () {
    it('should have a color class', function () {
      expect(TestFlotr.Color).not.toBeUndefined();
    });
 
    it('should create a color', function () {
      var color = new TestFlotr.Color(0, 0, 0, 0);
      expect(color).toBeTruthy();
    });
 
    it('should have rgba attributes', function () {
      var color = new TestFlotr.Color(0, 0, 0, 0);
      expect(color.r).toEqual(0);
      expect(color.g).toEqual(0);
      expect(color.b).toEqual(0);
      expect(color.a).toEqual(1.0);
    });
  });
 
  describe('Color Manipulation', function () {
 
    var
      color;
 
    afterEach(function () {
      color = null;
    });
 
    it('normalizes colors to upper bound', function () {
      color = new TestFlotr.Color(1000, 1000, 1000, 10);
      expect(color.r).toEqual(255);
      expect(color.g).toEqual(255);
      expect(color.b).toEqual(255);
      expect(color.a).toEqual(1.0);
    });
 
    it('normalizes colors to lower bound', function () {
      color = new TestFlotr.Color(-1000, -1000, -1000, -10);
      expect(color.r).toEqual(0);
      expect(color.g).toEqual(0);
      expect(color.b).toEqual(0);
      expect(color.a).toEqual(0.0);
    });
 
    it('scales colors', function () {
            color = new TestFlotr.Color(200, 200, 200, 1.0);
      color.scale(.5, .5, .5, .5);
      expect(color.r).toEqual(100);
      expect(color.g).toEqual(100);
      expect(color.b).toEqual(100);
      expect(color.a).toEqual(0.5);
    });
  });
 
  describe('Color Conversion', function () {
 
    var
      color;
 
    beforeEach(function () {
            color = new TestFlotr.Color(200, 200, 200, 1.0);
    });
    afterEach(function () {
      color = null;
    });
 
    it('should convert colors to strings, rgb', function () {
      expect(color.toString()).toEqual('rgb(200,200,200)');
    });
 
    it('should convert colors to strings, rgba', function () {
      color.a = 0.5;
      color.normalize();
      expect(color.toString()).toEqual('rgba(200,200,200,0.5)');
    });
 
    it('should clone colors', function () {
 
      var
        color2 = color.clone();
 
      expect(color.toString()).toEqual(color2.toString());
 
      color.a = 0.5;
      color.normalize();
      color2 = color.clone();
      expect(color.toString()).toEqual(color2.toString());
    });
  });
});