1 files changed, 18 insertions, 0 deletions
diff --git a/test/rectangle_spec.rb b/test/rectangle_spec.rb
new file mode 100644
index 0000000..493f3d1
--- /dev/null
+++ b/test/rectangle_spec.rb
@@ -0,0 +1,18 @@
+require 'ruby2d'
+
+RSpec.describe Ruby2D::Rectangle do
+  describe '#contains?' do
+    it "returns true if point is inside rectangle" do
+      rectangle = Rectangle.new(0, 0, 50, 50)
+      expect(rectangle.contains?(25, 25)).to be true
+    end
+
+    it "returns true if point is not inside rectangle" do
+      rectangle = Rectangle.new(0, 0, 50, 50)
+      expect(rectangle.contains?(-25, 25)).to be false
+      expect(rectangle.contains?(25, -25)).to be false
+      expect(rectangle.contains?(25, 50)).to be false
+      expect(rectangle.contains?(50, 25)).to be false
+    end
+  end
+end