Add gradient tests and fix warnings

framer/LinearGradient.coffee

@@ -24,7 +24,7 @@ class exports.LinearGradient extends BaseClass
 		set: (value) ->
 			@_angle = value if _.isNumber(value)
 
-	toCSS: () =>
+	toCSS: =>
 		return "linear-gradient(#{this.angle}deg, #{this.start}, #{this.end})"
 
 	mix: (gradientB, fraction) =>
@@ -56,7 +56,7 @@ class exports.LinearGradient extends BaseClass
 			end: end
 			angle: angle
 
-	@random: () ->
+	@random: ->
 		hue = Math.random() * 360
 		colorA = new Color h: hue
 		colorB = new Color h: hue + 40
@@ -73,4 +73,4 @@ class exports.LinearGradient extends BaseClass
 		equalAngle = Math.abs(gradientA.angle - gradientB.angle) % 360 is 0
 		equalStart = Color.equal(gradientA.start, gradientB.start)
 		equalEnd = Color.equal(gradientA.end, gradientB.end)
-		return equalAngle and equalStart and equalEnd
+		return equalAngle and equalStart and equalEnd

test/tests.coffee

@@ -46,6 +46,7 @@ require "./tests/TextLayerTest"
 require "./tests/PageComponentTest"
 require "./tests/VersionTest"
 require "./tests/ColorTest"
+require "./tests/LinearGradientTest"
 require "./tests/DeviceComponentTest"
 require "./tests/SliderComponentTest"
 require "./tests/RangeSliderComponentTest"

test/tests/LinearGradientTest.coffee

@@ -0,0 +1,52 @@
+describe "Linear Gradient", ->
+
+	it "should allow input as object", ->
+
+		start = "red"
+		end = "orange"
+		angle = 20
+
+		gradient = new LinearGradient
+			start: start
+			end: end
+			angle: angle
+
+		gradient.start.isEqual(start).should.be.true
+		gradient.end.isEqual(end).should.be.true
+		gradient.angle.should.equal angle
+
+	it "should compare for equality", ->
+
+		gradient = new LinearGradient
+			angle: 360
+			start: "red"
+		equalGradient = new LinearGradient
+			angle: 0
+			start: "red"
+		LinearGradient.equal(gradient, equalGradient).should.be.true
+
+		unequalGradient = new LinearGradient
+			angle: 90
+		unequalGradient.isEqual(gradient).should.be.false
+
+	it "should mix gradients", ->
+
+		colorA = "red"
+		colorB = "yellow"
+		gradientA = new LinearGradient
+			start: colorA
+		gradientB = new LinearGradient
+			start: colorB
+			angle: 90
+		mixed = gradientA.mix(gradientB)
+		mixed.angle.should.equal 45
+		mixed.start.isEqual(Color.mix(colorA, colorB)).should.be.true
+
+	it "should take the shortest route when animating to a new angle", ->
+
+		gradientA = new LinearGradient
+			angle: 0
+		gradientB = new LinearGradient
+			angle: 405
+		mixed = LinearGradient.mix(gradientA, gradientB, 1)
+		mixed.angle.should.equal 45