update some user tests that now fail

* Start the user manager before making updates for session time, purchases

Author: nan-li

iOS_SDK/OneSignalSDK/OneSignalUserTests/OneSignalUserObjcTests.m

@@ -33,6 +33,9 @@ - (void)testSendPurchases {
 
     MockOneSignalClient* client = [MockOneSignalClient new];
 
+    // 0. Purchases will be dropped if there is no user instance.
+    [OneSignalUserManagerImpl.sharedInstance start];
+
     // 1. Set up mock responses for the anonymous user
     [MockUserRequests setDefaultCreateAnonUserResponsesWith:client];
     [OneSignalCoreImpl setSharedClient:client];

iOS_SDK/OneSignalSDK/OneSignalUserTests/OneSignalUserTests.swift

@@ -74,6 +74,8 @@ final class OneSignalUserTests: XCTestCase {
     func testBasicCombiningUserUpdateDeltas_resultsInOneRequest() throws {
         /* Setup */
 
+        OneSignalUserManagerImpl.sharedInstance.start()
+
         let client = MockOneSignalClient()
         MockUserRequests.setDefaultCreateAnonUserResponses(with: client)
         OneSignalCoreImpl.setSharedClient(client)