test shadow properties are set irrespective of useShadowPath

Author: karthikyml

Sources/YCoreUI/Components/Elevation.swift

@@ -19,7 +19,7 @@ public struct Elevation {
     /// The color of the layer’s shadow.
     public let color: UIColor
     /// The opacity of the layer’s shadow.
-    public let opacity: CGFloat
+    public let opacity: Float
     /// Flag to set shadow path. Default is `true`.
     public let useShadowPath: Bool
 
@@ -36,7 +36,7 @@ public struct Elevation {
         blur: CGFloat,
         spread: CGFloat,
         color: UIColor,
-        opacity: CGFloat,
+        opacity: Float,
         useShadowPath: Bool = true
     ) {
         self.offset = offset
@@ -52,9 +52,18 @@ public struct Elevation {
     ///   - layer: layer of the corresponding view
     ///   - cornerRadius: the radius to use when drawing rounded corners for the layer’s background.
     public func apply(layer: CALayer, cornerRadius: CGFloat) {
-        guard useShadowPath else { return }
+        applyShadow(layer: layer)
 
-        let rect = layer.bounds.insetBy(dx: -spread, dy: -spread)
-        layer.shadowPath = UIBezierPath(roundedRect: rect, cornerRadius: cornerRadius).cgPath
+        if useShadowPath {
+            let rect = layer.bounds.insetBy(dx: -spread, dy: -spread)
+            layer.shadowPath = UIBezierPath(roundedRect: rect, cornerRadius: cornerRadius).cgPath
+        }
+    }
+    
+    private func applyShadow(layer: CALayer) {
+        layer.shadowOpacity = opacity
+        layer.shadowColor = color.cgColor
+        layer.shadowOffset = offset
+        layer.shadowRadius = blur / 2
     }
 }

Tests/YCoreUITests/Components/ElevationTests.swift

@@ -52,6 +52,32 @@ final class ElevationTests: XCTestCase {
 
         XCTAssertNotNil(layer.shadowPath)
     }
+    
+    func test_apply_setsShadowPropertiesWhenUseShadowPathIsFalse() {
+        let sut = makeSUT(useShadowPath: false)
+
+        let layer = CALayer()
+        
+        sut.apply(layer: layer, cornerRadius: 8)
+        
+        XCTAssertEqual(layer.shadowOffset, CGSize(width: 1, height: 1))
+        XCTAssertEqual(layer.shadowColor, UIColor.red.cgColor)
+        XCTAssertEqual(layer.shadowOpacity, 5)
+        XCTAssertEqual(layer.shadowRadius, sut.blur / 2)
+    }
+    
+    func test_apply_setsShadowPropertiesWhenUseShadowPathIsTrue() {
+        let sut = makeSUT(useShadowPath: true)
+
+        let layer = CALayer()
+        
+        sut.apply(layer: layer, cornerRadius: 8)
+        
+        XCTAssertEqual(layer.shadowOffset, CGSize(width: 1, height: 1))
+        XCTAssertEqual(layer.shadowColor, UIColor.red.cgColor)
+        XCTAssertEqual(layer.shadowOpacity, 5)
+        XCTAssertEqual(layer.shadowRadius, sut.blur / 2)
+    }
 }
 
 private extension ElevationTests {
@@ -60,7 +86,7 @@ private extension ElevationTests {
         blur: CGFloat = 2,
         spread: CGFloat = 3,
         color: UIColor = .red,
-        opacity: CGFloat = 5,
+        opacity: Float = 5,
         useShadowPath: Bool = true
     ) -> Elevation {
         Elevation(