Add PromiseKit dependency

- Added PromiseKit dependency

Carthage/Checkouts/PromiseKit/Extensions/AssetsLibrary/Tests/TestUIImagePickerController.swift

@@ -0,0 +1,31 @@
+import XCTest
+
+class UIImagePickerControllerTests: XCTestCase {
+    func test_fulfills_with_data() {
+        let app = XCUIApplication()
+        let tablesQuery = app.tables
+        tablesQuery.staticTexts["1"].tap()
+        tablesQuery.children(matching: .cell).element(boundBy: 1).tap()
+        app.collectionViews.children(matching: .cell).element(boundBy: 0).tap()
+
+        XCTAssertTrue(value)
+    }
+
+    var toggle: XCUIElement {
+        // calling this ensures that any other ViewController has dismissed
+        // as a side-effect since otherwise the switch won't be found
+        return XCUIApplication().tables.switches.element
+    }
+
+    var value: Bool {
+        return (toggle.value as! String) == "1"
+    }
+
+    override func setUp() {
+        super.setUp()
+        continueAfterFailure = false
+        XCUIApplication().launch()
+        XCTAssertFalse(value)
+    }
+
+}