Update CGTypes and test case

Sources/OpenCoreGraphics/CGPoint+Extension.swift

@@ -0,0 +1,18 @@
+//
+//  CGPoint+Extension.swift
+//  OpenCoreGraphics
+//
+
+public import Foundation
+
+#if canImport(Darwin)
+extension CGPoint {
+    public static let zero = CGPoint(x: .zero, y: .zero)
+}
+#endif
+
+extension CGPoint: Swift.CustomDebugStringConvertible {
+    public var debugDescription: String {
+        "(\(x.description), \(y.description))"
+    }
+}

Sources/OpenCoreGraphics/Shims.swift → Sources/OpenCoreGraphics/CGRect+Extension.swift

@@ -1,10 +1,10 @@
 //
-//  Shims.swift
+//  CGRect+Extension.swift
 //  OpenCoreGraphics
 
-#if canImport(Darwin)
 public import Foundation
 
+#if canImport(Darwin)
 extension CGRect {
     public init(x: CGFloat, y: CGFloat, width: CGFloat, height: CGFloat) {
         self.init(origin: CGPoint(x: x, y: y), size: CGSize(width: width, height: height))
@@ -34,9 +34,12 @@ extension CGRect {
         return origin.y + size.height
     }
 
+    public static let zero = CGRect(origin: .zero, size: .zero)
 }
+#endif
 
-extension CGPoint {
-    public static let zero = CGPoint(x: .zero, y: .zero)
+extension CGRect: Swift.CustomDebugStringConvertible {
+    public var debugDescription: String {
+        "(\(origin.x.description), \(origin.y.description), \(size.width.description), \(size.height.description))"
+    }
 }
-#endif

Sources/OpenCoreGraphics/CGSize+Extension.swift

@@ -0,0 +1,17 @@
+//
+//  CGSize+Extension.swift
+//  OpenCoreGraphics
+
+public import Foundation
+
+#if canImport(Darwin)
+extension CGSize {
+    public static let zero = CGSize(width: .zero, height: .zero)
+}
+#endif
+
+extension CGSize: Swift.CustomDebugStringConvertible {
+    public var debugDescription: String {
+        "(\(width.description), \(height.description))"
+    }
+}

Tests/OpenCoreGraphicsShimsTests/CGTypesTests.swift

@@ -0,0 +1,20 @@
+//
+//  CGTypesTests.swift
+//  OpenCoreGraphics
+
+import OpenCoreGraphicsShims
+import Testing
+
+struct CGTypesTests {
+    @Test
+    func description() {
+        let point = CGPoint(x: 1.0, y: 2.0)
+        #expect(point.debugDescription == "(1.0, 2.0)")
+
+        let size = CGSize(width: 3.0, height: 4.0)
+        #expect(size.debugDescription == "(3.0, 4.0)")
+
+        let rect = CGRect(x: 5.0, y: 6.0, width: 7.0, height: 8.0)
+        #expect(rect.debugDescription == "(5.0, 6.0, 7.0, 8.0)")
+    }
+}