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());
        });
    });
});