1 files changed, 45 insertions, 2 deletions
diff --git a/test/triangle_spec.rb b/test/triangle_spec.rb
index 2600d6f..8dd2605 100644
--- a/test/triangle_spec.rb
+++ b/test/triangle_spec.rb
@@ -12,6 +12,23 @@ RSpec.describe Ruby2D::Triangle do
       expect(triangle.color.a).to eq(1)
     end
 
+    it "creates a triangle with options" do
+      triangle = Triangle.new(
+        x1: 10, y1: 20, x2: 30, y2: 40, x3: 50, y3: 60, z: 70,
+        color: 'gray', opacity: 0.5
+      )
+
+      expect(triangle.x1).to eq(10)
+      expect(triangle.y1).to eq(20)
+      expect(triangle.x2).to eq(30)
+      expect(triangle.y2).to eq(40)
+      expect(triangle.x3).to eq(50)
+      expect(triangle.y3).to eq(60)
+      expect(triangle.z).to eq(70)
+      expect(triangle.color.r).to eq(2/3.0)
+      expect(triangle.opacity).to eq(0.5)
+    end
+
     it "creates a new triangle with one color via string" do
       triangle = Triangle.new(color: 'black')
       expect(triangle.color).to be_a(Ruby2D::Color)
@@ -41,16 +58,42 @@ RSpec.describe Ruby2D::Triangle do
     it "throws an error when array of 2 strings is passed" do
       expect do
         Triangle.new(color: ['red', 'green'])
-      end.to raise_error("Triangles require 3 colors, one for each vertex. 2 were given.")
+      end.to raise_error("`Ruby2D::Triangle` requires 3 colors, one for each vertex. 2 were given.")
     end
 
     it "throws an error when array of 4 strings is passed" do
       expect do
         Triangle.new(color: ['red', 'green', 'blue', 'fuchsia'])
-      end.to raise_error("Triangles require 3 colors, one for each vertex. 4 were given.")
+      end.to raise_error("`Ruby2D::Triangle` requires 3 colors, one for each vertex. 4 were given.")
+    end
+  end
+
+  describe "attributes" do
+    it "can be set and read" do
+      triangle = Triangle.new
+      triangle.x1 = 10
+      triangle.y1 = 20
+      triangle.x2 = 30
+      triangle.y2 = 40
+      triangle.x3 = 50
+      triangle.y3 = 60
+      triangle.z = 70
+      triangle.color = 'gray'
+      triangle.opacity = 0.5
+
+      expect(triangle.x1).to eq(10)
+      expect(triangle.y1).to eq(20)
+      expect(triangle.x2).to eq(30)
+      expect(triangle.y2).to eq(40)
+      expect(triangle.x3).to eq(50)
+      expect(triangle.y3).to eq(60)
+      expect(triangle.z).to eq(70)
+      expect(triangle.color.r).to eq(2/3.0)
+      expect(triangle.opacity).to eq(0.5)
     end
   end
 
+  # TODO: This test should be more precise, like `Renderable#contains?`
   describe "#contains?" do
     triangle = Triangle.new(
       x1:   0, y1:   0,