Add Color3.new empty constructor and Color3.fromRGB

lib/types/Color3.lua

@@ -1,11 +1,21 @@
 local Color3 = {}
 
-function Color3.new(r, g, b)
-	return {
-		r = r,
-		g = g,
-		b = b,
-	}
+function Color3.new(...)
+	if select("#", ...) == 0 then
+		return Color3.new(0, 0, 0)
+	else
+		local r, g, b = ...
+
+		return {
+			r = r,
+			g = g,
+			b = b,
+		}
+	end
+end
+
+function Color3.fromRGB(r, g, b)
+	return Color3.new(r / 255, g / 255, b / 255)
 end
 
-return Color3
+return Color3

lib/types/Color3_spec.lua

@@ -1,9 +1,30 @@
 local Color3 = import("./Color3")
 
+local function extractColors(color)
+	return {
+		color.r,
+		color.g,
+		color.b
+	}
+end
+
 describe("types.Color3", function()
-	it("should have a constructor", function()
+	it("should have an empty constructor", function()
+		local color = Color3.new()
+
+		assert.not_nil(color)
+		assert.are.same(extractColors(color), { 0, 0, 0 })
+	end)
+
+	it("should have a constructor that takes rgb values 0-1", function()
 		local color = Color3.new(0, 0, 0)
 
 		assert.not_nil(color)
 	end)
-end)
+
+	it("should have the fromRGB method", function()
+		local color = Color3.fromRGB(255, 0, 0)
+
+		assert.are.same(extractColors(color), { 1, 0, 0 })
+	end)
+end)