add test to reproduce issue

SKPhotoBrowserTests/SKPhotoBrowserTests.swift

@@ -7,6 +7,14 @@
 //
 
 import XCTest
+@testable import SKPhotoBrowser
+
+
+class FakeSKPhotoBrowser : SKPhotoBrowser {
+    override func setup () {
+        
+    }
+}
 
 class SKPhotoBrowserTests: XCTestCase {
     
@@ -19,12 +27,30 @@ class SKPhotoBrowserTests: XCTestCase {
         // Put teardown code here. This method is called after the invocation of each test method in the class.
         super.tearDown()
     }
+
     
-    func testExample() {
-        // This is an example of a functional test case.
-        // Use XCTAssert and related functions to verify your tests produce the correct results.
+    func testSKPhotoArray() {
+        var images = [SKPhoto]()
+        let photo = SKPhoto.photoWithImage(UIImage())// add some UIImage
+        images.append(photo)
+        let _ = FakeSKPhotoBrowser(photos: images)
     }
     
+    func testSKLocalPhotoArray() {
+        var images = [SKLocalPhoto]()
+        let photo = SKLocalPhoto.photoWithImageURL("")
+        images.append(photo)
+        let _ = FakeSKPhotoBrowser(photos: images)
+    }
+    
+    func testSKPhotoProtocolArray() {
+        var images = [SKPhotoProtocol]()
+        let photo = SKPhoto.photoWithImage(UIImage())// add some UIImage
+        images.append(photo)
+        let _ =  FakeSKPhotoBrowser(photos: images)
+    }
+
+
     func testPerformanceExample() {
         // This is an example of a performance test case.
         self.measureBlock {