1 files changed, 92 insertions, 0 deletions
diff --git a/test/rectangle_spec.rb b/test/rectangle_spec.rb
new file mode 100644
index 0000000..6628c5a
--- /dev/null
+++ b/test/rectangle_spec.rb
@@ -0,0 +1,92 @@
+require 'ruby2d'
+
+RSpec.describe Ruby2D::Rectangle do
+
+  describe "#new" do
+    it "creates a white rectangle by default" do
+      rectangle = Rectangle.new
+      expect(rectangle.color).to be_a(Ruby2D::Color)
+      expect(rectangle.color.r).to eq(1)
+      expect(rectangle.color.g).to eq(1)
+      expect(rectangle.color.b).to eq(1)
+      expect(rectangle.color.a).to eq(1)
+    end
+
+    it "creates a rectangle with options" do
+      rectangle = Rectangle.new(
+        x: 10, y: 20, z: 30,
+        width: 40, height: 50,
+        color: 'gray', opacity: 0.5
+      )
+
+      expect(rectangle.x).to eq(10)
+      expect(rectangle.y).to eq(20)
+      expect(rectangle.z).to eq(30)
+      expect(rectangle.width).to eq(40)
+      expect(rectangle.height).to eq(50)
+      expect(rectangle.color.r).to eq(2/3.0)
+      expect(rectangle.opacity).to eq(0.5)
+    end
+
+    it "creates a new rectangle with one color via string" do
+      rectangle = Rectangle.new(color: 'red')
+      expect(rectangle.color).to be_a(Ruby2D::Color)
+    end
+
+    it "creates a new rectangle with one color via array of numbers" do
+      rectangle = Rectangle.new(color: [0.1, 0.3, 0.5, 0.7])
+      expect(rectangle.color).to be_a(Ruby2D::Color)
+    end
+
+    it "creates a new rectangle with 4 colors via array of 4 strings" do
+      rectangle = Rectangle.new(color: ['red', 'green', 'blue', 'black'])
+      expect(rectangle.color).to be_a(Ruby2D::Color::Set)
+    end
+
+    it "creates a new rectangle with 4 colors via array of 4 arrays of arrays of numbers" do
+      rectangle = Rectangle.new(
+        color: [
+          [0.1, 0.3, 0.5, 0.7],
+          [0.2, 0.4, 0.6, 0.8],
+          [0.3, 0.5, 0.7, 0.9],
+          [0.4, 0.6, 0.8, 1.0]
+        ]
+      )
+      expect(rectangle.color).to be_a(Ruby2D::Color::Set)
+    end
+
+    it "throws an error when array of 3 strings is passed" do
+      expect do
+        Rectangle.new(color: ['red', 'green', 'blue'])
+      end.to raise_error("`Ruby2D::Rectangle` requires 4 colors, one for each vertex. 3 were given.")
+    end
+
+    it "throws an error when array of 5 strings is passed" do
+      expect do
+        Rectangle.new(color: ['red', 'green', 'blue', 'black', 'fuchsia'])
+      end.to raise_error("`Ruby2D::Rectangle` requires 4 colors, one for each vertex. 5 were given.")
+    end
+  end
+
+  describe "attributes" do
+    it "can be set and read" do
+      rectangle = Rectangle.new
+      rectangle.x = 10
+      rectangle.y = 20
+      rectangle.z = 30
+      rectangle.width = 40
+      rectangle.height = 50
+      rectangle.color = 'gray'
+      rectangle.opacity = 0.5
+
+      expect(rectangle.x).to eq(10)
+      expect(rectangle.y).to eq(20)
+      expect(rectangle.z).to eq(30)
+      expect(rectangle.width).to eq(40)
+      expect(rectangle.height).to eq(50)
+      expect(rectangle.color.r).to eq(2/3.0)
+      expect(rectangle.opacity).to eq(0.5)
+    end
+  end
+
+end