Merge pull request #6 from chenhaiteng/develop

Develop

Author: chenhaiteng

Sources/CoreGraphicsExtension/CGAngle.swift

@@ -18,4 +18,12 @@ extension CGAngle {
     public var degrees: CGFloat {
         self*180/CGFloat.pi
     }
+    
+    @inlinable public static func radians<T: BinaryFloatingPoint>(_ radians: T) -> CGAngle {
+        CGAngle(radians)
+    }
+    
+    @inlinable public static func degrees<T: BinaryFloatingPoint>(_ degrees: T) -> CGAngle {
+        return CGAngle(degrees*T.pi/180)
+    }
 }

Tests/CoreGraphicsExtensionTests/CoreGraphicsExtensionTests.swift

@@ -13,6 +13,19 @@ final class CoreGraphicExtensionTests: XCTestCase {
         XCTAssertEqual(rightAngle, CGFloat.pi/2)
         XCTAssertEqual(rightAngle.degrees, 90)
         XCTAssertEqual(rightAngle.radians, CGFloat.pi/2)
+        
+        //Test factory methods
+        let fromDegree = CGAngle.degrees(90.0)
+        
+        XCTAssertEqual(fromDegree, CGFloat.pi/2)
+        XCTAssertEqual(fromDegree.degrees, 90)
+        XCTAssertEqual(fromDegree.radians, CGFloat.pi/2)
+        
+        let fromRadians = CGAngle.radians(Double.pi/2)
+        
+        XCTAssertEqual(fromRadians, CGFloat.pi/2)
+        XCTAssertEqual(fromRadians.degrees, 90)
+        XCTAssertEqual(fromRadians.radians, CGFloat.pi/2)
     }
 
     func testPolarPoint() {