| Current File : /home/tradevaly/www/node_modules/svg.js/spec/spec/polyline.js |
describe('Polyline', function() {
var polyline
beforeEach(function() {
polyline = draw.polyline('0,0 100,0 100,100 0,100')
})
afterEach(function() {
draw.clear()
})
describe('()', function(){
it('falls back to a single point without an argument', function() {
polyline = draw.polyline()
expect(polyline.attr('points')).toBe('0,0')
})
})
describe('array()', function() {
it('returns an instance of SVG.PointArray', function() {
expect(polyline.array() instanceof SVG.PointArray).toBeTruthy()
})
it('returns the value stored in the private variable _array', function() {
expect(polyline.array()).toBe(polyline._array)
})
})
describe('x()', function() {
it('returns the value of x without an argument', function() {
expect(polyline.x()).toBe(0)
})
it('sets the value of x with the first argument', function() {
polyline.x(123)
var box = polyline.bbox()
expect(box.x).toBe(123)
})
})
describe('y()', function() {
it('returns the value of y without an argument', function() {
expect(polyline.y()).toBe(0)
})
it('sets the value of y with the first argument', function() {
polyline.y(345)
var box = polyline.bbox()
expect(box.y).toBe(345)
})
})
describe('cx()', function() {
it('returns the value of cx without an argument', function() {
expect(polyline.cx()).toBe(50)
})
it('sets the value of cx with the first argument', function() {
polyline.cx(123)
var box = polyline.bbox()
expect(box.cx).toBe(123)
})
})
describe('cy()', function() {
it('returns the value of cy without an argument', function() {
expect(polyline.cy()).toBe(50)
})
it('sets the value of cy with the first argument', function() {
polyline.cy(345)
var box = polyline.bbox()
expect(box.cy).toBe(345)
})
})
describe('move()', function() {
it('sets the x and y position', function() {
polyline.move(123,456)
var box = polyline.bbox()
expect(box.x).toBe(123)
expect(box.y).toBe(456)
})
})
describe('dx()', function() {
it('moves the x positon of the element relative to the current position', function() {
polyline.move(50,60)
polyline.dx(100)
var box = polyline.bbox()
expect(box.x).toBe(150)
})
})
describe('dy()', function() {
it('moves the y positon of the element relative to the current position', function() {
polyline.move(50, 60)
polyline.dy(120)
var box = polyline.bbox()
expect(box.y).toBe(180)
})
})
describe('dmove()', function() {
it('moves the x and y positon of the element relative to the current position', function() {
polyline.move(50,60)
polyline.dmove(80, 25)
var box = polyline.bbox()
expect(box.x).toBe(130)
expect(box.y).toBe(85)
})
})
describe('center()', function() {
it('sets the cx and cy position', function() {
polyline.center(321,567)
var box = polyline.bbox()
expect(box.x).toBe(271)
expect(box.y).toBe(517)
})
})
describe('width()', function() {
it('sets the width and height of the element', function() {
polyline.width(987)
var box = polyline.bbox()
expect(box.width).toBeCloseTo(987, 1)
})
it('gets the width and height of the element without an argument', function() {
polyline.width(789)
expect(polyline.width()).toBeCloseTo(789)
})
})
describe('height()', function() {
it('sets the height and height of the element', function() {
polyline.height(987)
var box = polyline.bbox()
expect(box.height).toBeCloseTo(987)
})
it('gets the height and height of the element without an argument', function() {
polyline.height(789)
expect(polyline.height()).toBeCloseTo(789)
})
})
describe('size()', function() {
it('should define the width and height of the element', function() {
polyline.size(987,654)
var box = polyline.bbox()
expect(box.width).toBeCloseTo(987)
expect(box.height).toBeCloseTo(654)
})
it('defines the width and height proportionally with only the width value given', function() {
var box = polyline.bbox()
polyline.size(500)
expect(polyline.width()).toBe(500)
expect(polyline.width() / polyline.height()).toBe(box.width / box.height)
})
it('defines the width and height proportionally with only the height value given', function() {
var box = polyline.bbox()
polyline.size(null, 525)
expect(polyline.height()).toBe(525)
expect(polyline.width() / polyline.height()).toBe(box.width / box.height)
})
})
describe('scale()', function() {
it('should scale the element universally with one argument', function() {
var box1 = polyline.rbox()
, box2 = polyline.scale(2).rbox()
expect(box2.width).toBe(box1.width * 2)
expect(box2.height).toBe(box1.height * 2)
})
it('should scale the element over individual x and y axes with two arguments', function() {
var box1 = polyline.rbox()
, box2 = polyline.scale(2, 3.5).rbox()
expect(box2.width).toBe(box1.width * 2)
expect(box2.height).toBe(box1.height * 3.5)
})
})
describe('translate()', function() {
it('sets the translation of an element', function() {
polyline.transform({ x: 12, y: 12 })
expect(polyline.node.getAttribute('transform')).toBe('matrix(1,0,0,1,12,12)')
})
})
describe('plot()', function() {
it('change the points attribute of the underlying polyline node when a string is passed', function() {
var pointString = '100,50 75,20 200,100'
, pointArray = new SVG.PointArray(pointString)
expect(polyline.plot(pointString)).toBe(polyline)
expect(polyline.attr('points')).toBe(pointArray.toString())
})
it('return the point array when no arguments are passed', function () {
expect(polyline.plot()).toBe(polyline.array())
})
it('clears the array cache when a value is passed', function() {
polyline = draw.polyline([100,50,75,20,200,100])
expect(polyline._array instanceof SVG.PointArray).toBeTruthy()
polyline.plot('100,50 75,20 200,100')
expect(polyline._array).toBeUndefined()
})
it('applies a given polyline string value as is', function() {
var polyString = '100,50,75,20,200,100'
polyline = draw.polyline(polyString)
expect(polyline.attr('points')).toBe(polyString)
})
it('does not parse and cache a given string value to SVG.PointArray', function() {
polyline = draw.polyline('100,50 75,20 200,100')
expect(polyline._array).toBeUndefined()
})
it('caches a given array value', function() {
polyline = draw.polyline([100,50,75,20,200,100])
expect(polyline._array instanceof SVG.PointArray).toBeTruthy()
})
})
describe('clear()', function() {
it('clears the cached SVG.PointArray instance', function() {
polyline = draw.polyline([100,50,75,20,200,100])
polyline.clear()
expect(polyline._array).toBeUndefined()
})
})
})