added tests for sugar.js

1 files changed, 430 insertions, 0 deletions

diff --git a/spec/spec/modules/optional/sugar.js b/spec/spec/modules/optional/sugar.js
new file mode 100644
index 0000000..f762ed0
--- /dev/null
+++ b/spec/spec/modules/optional/sugar.js
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+/* globals describe, expect, it, beforeEach, spyOn, container */
+
+import { Rect, SVG, Matrix, Ellipse, Gradient } from '../../../../src/main.js'
+
+describe('sugar.js', () => {
+  describe('Element/Runner', () => {
+    describe('fill()', () => {
+      describe('as setter', () => {
+        it('returns itself', () => {
+          const rect = new Rect()
+          expect(rect.fill('black')).toBe(rect)
+        })
+
+        it('sets a fill color', () => {
+          const rect = new Rect()
+          expect(rect.fill('black').attr('fill')).toBe('black')
+        })
+
+        it('sets a fill pattern when pattern given', () => {
+          const canvas = SVG().addTo(container)
+          const pattern = canvas.pattern()
+          const rect = canvas.rect(100, 100)
+          expect(rect.fill(pattern).attr('fill')).toBe(pattern.url())
+        })
+
+        it('sets a fill pattern when image given', () => {
+          const canvas = SVG().addTo(container)
+          const image = canvas.image('spec/fictures/pixel.png')
+          const rect = canvas.rect(100, 100)
+          expect(rect.fill(image).attr('fill')).toBe(image.parent().url())
+        })
+
+        it('sets an object of fill properties', () => {
+          const rect = new Rect()
+          expect(rect.fill({
+            color: 'black',
+            opacity: 0.5,
+            rule: 'even-odd'
+          }).attr()).toEqual({
+            fill: 'black',
+            'fill-opacity': 0.5,
+            'fill-rule':
+          'even-odd'
+          })
+        })
+      })
+
+      describe('as getter', () => {
+        it('returns fill color', () => {
+          const rect = new Rect().fill('black')
+          expect(rect.fill()).toBe('black')
+        })
+
+        it('returns default fill color if nothing is set', () => {
+          const rect = new Rect()
+          expect(rect.fill()).toBe('#000000')
+        })
+      })
+    })
+
+    describe('stroke()', () => {
+      describe('as setter', () => {
+        it('returns itself', () => {
+          const rect = new Rect()
+          expect(rect.stroke('black')).toBe(rect)
+        })
+
+        it('sets a stroke color', () => {
+          const rect = new Rect()
+          expect(rect.stroke('black').attr('stroke')).toBe('black')
+        })
+
+        it('sets a stroke pattern when pattern given', () => {
+          const canvas = SVG().addTo(container)
+          const pattern = canvas.pattern()
+          const rect = canvas.rect(100, 100)
+          expect(rect.stroke(pattern).attr('stroke')).toBe(pattern.url())
+        })
+
+        it('sets a stroke pattern when image given', () => {
+          const canvas = SVG().addTo(container)
+          const image = canvas.image('spec/fictures/pixel.png')
+          const rect = canvas.rect(100, 100)
+          expect(rect.stroke(image).attr('stroke')).toBe(image.parent().url())
+        })
+
+        it('sets an object of stroke properties', () => {
+          const rect = new Rect()
+          expect(rect.stroke({
+            color: 'black',
+            width: 2,
+            opacity: 0.5,
+            linecap: 'butt',
+            linejoin: 'miter',
+            miterlimit: 10,
+            dasharray: '2 2',
+            dashoffset: 15
+          }).attr()).toEqual({
+            stroke: 'black',
+            'stroke-width': 2,
+            'stroke-opacity': 0.5,
+            'stroke-linecap': 'butt',
+            'stroke-linejoin': 'miter',
+            'stroke-miterlimit': 10,
+            'stroke-dasharray': '2 2',
+            'stroke-dashoffset': 15
+          })
+        })
+
+        it('sets stroke dasharray with array passed', () => {
+          const rect = new Rect().stroke({ dasharray: [ 2, 2 ] })
+          expect(rect.attr()).toEqual({ 'stroke-dasharray': '2 2' })
+        })
+      })
+
+      describe('as getter', () => {
+        it('returns stroke color', () => {
+          const rect = new Rect().stroke('black')
+          expect(rect.stroke()).toBe('black')
+        })
+
+        it('returns default stroke color if nothing is set', () => {
+          const rect = new Rect()
+          expect(rect.stroke()).toBe('#000000')
+        })
+      })
+    })
+
+    describe('matrix()', () => {
+      it('gets the matrix with no argument passed', () => {
+        const rect = new Rect().transform(new Matrix(1, 0, 1, 1, 1, 0))
+        expect(rect.matrix()).toEqual(new Matrix(1, 0, 1, 1, 1, 0))
+      })
+
+      it('sets the matrix if matrix given', () => {
+        const rect = new Rect().matrix(new Matrix(1, 0, 1, 1, 1, 0))
+        expect(rect.matrix()).toEqual(new Matrix(1, 0, 1, 1, 1, 0))
+      })
+
+      it('sets the matrix with 6 arguments given', () => {
+        const rect = new Rect().matrix(1, 0, 1, 1, 1, 0)
+        expect(rect.matrix()).toEqual(new Matrix(1, 0, 1, 1, 1, 0))
+      })
+    })
+
+    describe('rotate()', function () {
+      it('redirects to transform()', function () {
+        const rect = new Rect()
+        const spy = spyOn(rect, 'transform')
+        rect.rotate(1, 2, 3)
+        expect(spy).toHaveBeenCalledWith({ rotate: 1, ox: 2, oy: 3 }, true)
+      })
+    })
+
+    describe('skew()', function () {
+      it('redirects to transform() with no argument', function () {
+        const rect = new Rect()
+        const spy = spyOn(rect, 'transform')
+        rect.skew()
+        expect(spy).toHaveBeenCalledWith({ skew: [ undefined, undefined ], ox: undefined, oy: undefined }, true)
+      })
+
+      it('redirects to transform() with one argument', function () {
+        const rect = new Rect()
+        const spy = spyOn(rect, 'transform')
+        rect.skew(5)
+        expect(spy).toHaveBeenCalledWith({ skew: 5, ox: undefined, oy: undefined }, true)
+      })
+
+      it('redirects to transform() with two argument', function () {
+        const rect = new Rect()
+        const spy = spyOn(rect, 'transform')
+        rect.skew(5, 6)
+        expect(spy).toHaveBeenCalledWith({ skew: [ 5, 6 ], ox: undefined, oy: undefined }, true)
+      })
+
+      it('redirects to transform() with three arguments', function () {
+        const rect = new Rect()
+        const spy = spyOn(rect, 'transform')
+        rect.skew(5, 6, 7)
+        expect(spy).toHaveBeenCalledWith({ skew: 5, ox: 6, oy: 7 }, true)
+      })
+
+      it('redirects to transform() with four arguments', function () {
+        const rect = new Rect()
+        const spy = spyOn(rect, 'transform')
+        rect.skew(5, 6, 7, 8)
+        expect(spy).toHaveBeenCalledWith({ skew: [ 5, 6 ], ox: 7, oy: 8 }, true)
+      })
+    })
+
+    describe('shear', () => {
+      it('redirects to transform()', function () {
+        const rect = new Rect()
+        const spy = spyOn(rect, 'transform')
+        rect.shear(1, 2, 3)
+        expect(spy).toHaveBeenCalledWith({ shear: 1, ox: 2, oy: 3 }, true)
+      })
+    })
+
+    describe('scale()', function () {
+      it('redirects to transform() with no argument', function () {
+        const rect = new Rect()
+        const spy = spyOn(rect, 'transform')
+        rect.scale()
+        expect(spy).toHaveBeenCalledWith({ scale: [ undefined, undefined ], ox: undefined, oy: undefined }, true)
+      })
+
+      it('redirects to transform() with one argument', function () {
+        const rect = new Rect()
+        const spy = spyOn(rect, 'transform')
+        rect.scale(5)
+        expect(spy).toHaveBeenCalledWith({ scale: 5, ox: undefined, oy: undefined }, true)
+      })
+
+      it('redirects to transform() with two argument', function () {
+        const rect = new Rect()
+        const spy = spyOn(rect, 'transform')
+        rect.scale(5, 6)
+        expect(spy).toHaveBeenCalledWith({ scale: [ 5, 6 ], ox: undefined, oy: undefined }, true)
+      })
+
+      it('redirects to transform() with three arguments', function () {
+        const rect = new Rect()
+        const spy = spyOn(rect, 'transform')
+        rect.scale(5, 6, 7)
+        expect(spy).toHaveBeenCalledWith({ scale: 5, ox: 6, oy: 7 }, true)
+      })
+
+      it('redirects to transform() with four arguments', function () {
+        const rect = new Rect()
+        const spy = spyOn(rect, 'transform')
+        rect.scale(5, 6, 7, 8)
+        expect(spy).toHaveBeenCalledWith({ scale: [ 5, 6 ], ox: 7, oy: 8 }, true)
+      })
+    })
+
+    describe('translate()', function () {
+      it('redirects to transform()', function () {
+        const rect = new Rect()
+        const spy = spyOn(rect, 'transform')
+        rect.translate(1, 2)
+        expect(spy).toHaveBeenCalledWith({ translate: [ 1, 2 ] }, true)
+      })
+    })
+
+    describe('relative()', () => {
+      it('redirects to transform()', function () {
+        const rect = new Rect()
+        const spy = spyOn(rect, 'transform')
+        rect.relative(1, 2)
+        expect(spy).toHaveBeenCalledWith({ relative: [ 1, 2 ] }, true)
+      })
+    })
+
+    describe('flip()', function () {
+      it('redirects to transform()', function () {
+        const rect = new Rect()
+        const spy = spyOn(rect, 'transform')
+        rect.flip('x', 2)
+        expect(spy).toHaveBeenCalledWith({ flip: 'x', origin: 2 }, true)
+      })
+
+      it('sets flip to "both" when calling without anything', function () {
+        const rect = new Rect()
+        const spy = spyOn(rect, 'transform')
+        rect.flip()
+        expect(spy).toHaveBeenCalledWith({ flip: 'both', origin: 'center' }, true)
+      })
+
+      // this works because only x and y are valid flip values. Evereything else flips on both axis
+      it('sets flip to both and origin to number when called with origin only', function () {
+        const rect = new Rect()
+        const spy = spyOn(rect, 'transform')
+        rect.flip(5)
+        expect(spy).toHaveBeenCalledWith({ flip: 'both', origin: 5 }, true)
+      })
+    })
+
+    describe('opacity()', function () {
+      it('redirects to attr() directly', function () {
+        const rect = new Rect()
+        const spy = spyOn(rect, 'attr')
+        rect.opacity(0.5)
+        expect(spy).toHaveBeenCalledWith('opacity', 0.5)
+      })
+    })
+
+    describe('font()', function () {
+      const txt = 'Some text'
+      let canvas, text
+
+      beforeEach(() => {
+        canvas = SVG().addTo(container)
+        text = canvas.text(txt)
+      })
+
+      it('sets leading when given', function () {
+        const spy = spyOn(text, 'leading')
+        text.font({ leading: 3 })
+        expect(spy).toHaveBeenCalledWith(3)
+      })
+
+      it('sets text-anchor when anchor given', function () {
+        const spy = spyOn(text, 'attr')
+        text.font({ anchor: 'start' })
+        expect(spy).toHaveBeenCalledWith('text-anchor', 'start')
+      })
+
+      it('sets all font properties via attr()', function () {
+        const spy = spyOn(text, 'attr')
+        text.font({
+          size: 20,
+          family: 'Verdana',
+          weight: 'bold',
+          stretch: 'wider',
+          variant: 'small-caps',
+          style: 'italic'
+        })
+        expect(spy).toHaveBeenCalledWith('font-size', 20)
+        expect(spy).toHaveBeenCalledWith('font-family', 'Verdana')
+        expect(spy).toHaveBeenCalledWith('font-weight', 'bold')
+        expect(spy).toHaveBeenCalledWith('font-stretch', 'wider')
+        expect(spy).toHaveBeenCalledWith('font-variant', 'small-caps')
+        expect(spy).toHaveBeenCalledWith('font-style', 'italic')
+      })
+
+      it('redirects all other stuff directly to attr()', function () {
+        const spy = spyOn(text, 'attr')
+        text.font({
+          foo: 'bar',
+          bar: 'baz'
+        })
+        expect(spy).toHaveBeenCalledWith('foo', 'bar')
+        expect(spy).toHaveBeenCalledWith('bar', 'baz')
+      })
+
+      it('sets key value pair when called with 2 parameters', function () {
+        const spy = spyOn(text, 'attr')
+        text.font('size', 20)
+        expect(spy).toHaveBeenCalledWith('font-size', 20)
+      })
+
+      it('gets value if called with one parameter', function () {
+        const spy = spyOn(text, 'attr')
+        text.font('size')
+        expect(spy).toHaveBeenCalledWith('font-size', undefined)
+      })
+    })
+
+  })
+
+  describe('radius()', () => {
+    describe('Rect', () => {
+      it('sets rx and ry on the rectangle', () => {
+        const rect = new Rect().radius(5, 10)
+        expect(rect.attr()).toEqual({ rx: 5, ry: 10 })
+      })
+    })
+
+    describe('Ellipse', () => {
+      it('sets rx and ry on the rectangle', () => {
+        const rect = new Ellipse().radius(5, 10)
+        expect(rect.attr()).toEqual({ rx: 5, ry: 10 })
+      })
+    })
+
+    describe('radialGradient', () => {
+      it('sets rx and ry on the rectangle', () => {
+        const rect = new Gradient('radial').radius(5)
+        expect(rect.attr()).toEqual({ r: 5 })
+      })
+    })
+  })
+
+  describe('Path', () => {
+    describe('length', () => {
+      it('returns the full length of the path', () => {
+        const canvas = SVG().addTo(container)
+        const path = canvas.path('M0 0 L 0 5')
+        expect(path.length()).toBe(5)
+      })
+    })
+
+    describe('pointAt', () => {
+      it('returns a point at a specific length', () => {
+        const canvas = SVG().addTo(container)
+        const path = canvas.path('M0 0 L 0 5')
+        const point = path.pointAt(3)
+
+        expect(point.x).toBeCloseTo(0) // chrome has rounding issues -.-
+        expect(point.y).toBe(3)
+      })
+    })
+  })
+
+  describe('events', () => {
+    [ 'click',
+      'dblclick',
+      'mousedown',
+      'mouseup',
+      'mouseover',
+      'mouseout',
+      'mousemove',
+      'mouseenter',
+      'mouseleave',
+      'touchstart',
+      'touchmove',
+      'touchleave',
+      'touchend',
+      'touchcancel' ].forEach(ev => {
+      describe(ev, () => {
+        it('calls on() with the eventname set to ' + ev, () => {
+          const rect = new Rect()
+          const spy = spyOn(rect, 'on')
+          const fn = () => {}
+          rect[ev](fn)
+          expect(spy).toHaveBeenCalledWith(ev, fn)
+        })
+
+        it('calls off() with the eventname set to ' + ev + ' when null is passed as second argument', () => {
+          const rect = new Rect()
+          const spy = spyOn(rect, 'off')
+          rect[ev](null)
+          expect(spy).toHaveBeenCalledWith(ev)
+        })
+      })
+    })
+  })
+})