Add PromiseKit dependency

- Added PromiseKit dependency

Carthage/Checkouts/PromiseKit/Extensions/Accounts/Tests/TestAccounts.swift

@@ -0,0 +1,80 @@
+import PMKAccounts
+import PromiseKit
+import Accounts
+import XCTest
+
+class Test_ACAccountStore_Swift: XCTestCase {
+    var dummy: ACAccount { return ACAccount() }
+
+    func test_renewCredentialsForAccount() {
+        let ex = expectation(description: "")
+
+        class MockAccountStore: ACAccountStore {
+            override func renewCredentials(for account: ACAccount!, completion: ACAccountStoreCredentialRenewalHandler!) {
+                completion(.renewed, nil)
+            }
+        }
+
+        MockAccountStore().renewCredentials(for: dummy).done { result in
+            XCTAssertEqual(result, ACAccountCredentialRenewResult.renewed)
+            ex.fulfill()
+        }.catch {
+            XCTFail("\($0)")
+        }
+
+        waitForExpectations(timeout: 1)
+    }
+
+    func test_requestAccessToAccountsWithType() {
+        class MockAccountStore: ACAccountStore {
+            override func requestAccessToAccounts(with accountType: ACAccountType!, options: [AnyHashable : Any]! = [:], completion: ACAccountStoreRequestAccessCompletionHandler!) {
+                completion(true, nil)
+            }
+        }
+
+        let ex = expectation(description: "")
+        let store = MockAccountStore()
+        let type = store.accountType(withAccountTypeIdentifier: ACAccountTypeIdentifierFacebook)!
+        store.requestAccessToAccounts(with: type).done { _ in
+            ex.fulfill()
+        }.catch {
+            XCTFail("\($0)")
+        }
+
+        waitForExpectations(timeout: 1)
+    }
+
+    func test_saveAccount() {
+        class MockAccountStore: ACAccountStore {
+            override func saveAccount(_ account: ACAccount!, withCompletionHandler completionHandler: ACAccountStoreSaveCompletionHandler!) {
+                completionHandler(true, nil)
+            }
+        }
+
+        let ex = expectation(description: "")
+        MockAccountStore().saveAccount(dummy).done { _ in
+            ex.fulfill()
+        }.catch {
+            XCTFail("\($0)")
+        }
+
+        waitForExpectations(timeout: 1)
+    }
+
+    func test_removeAccount() {
+        class MockAccountStore: ACAccountStore {
+            override func removeAccount(_ account: ACAccount!, withCompletionHandler completionHandler: ACAccountStoreSaveCompletionHandler!) {
+                completionHandler(true, nil)
+            }
+        }
+
+        let ex = expectation(description: "")
+        MockAccountStore().removeAccount(dummy).done { _ in
+            ex.fulfill()
+        }.catch {
+            XCTFail("\($0)")
+        }
+
+        waitForExpectations(timeout: 1)
+    }
+}