[ios] Speed up UI tests

During UI tests, disable UI tests and skip state restoration so we don’t have to reset the position for each test.

platform/ios/app/MBXAppDelegate.m

@@ -22,6 +22,11 @@ - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(
         }
         [MGLAccountManager setAccessToken:accessToken];
     }
+
+    // Speed things up if we’re being run by a UI test bundle.
+    if ([[[NSProcessInfo processInfo] environment][@"MAPBOX_DISABLE_ANIMATIONS"] boolValue]) {
+        [UIView setAnimationsEnabled:NO];
+    }
 
     return YES;
 }

platform/ios/app/MBXViewController.m

@@ -136,6 +136,10 @@ - (void)saveState:(__unused NSNotification *)notification
 
 - (void)restoreState:(__unused NSNotification *)notification
 {
+    if ([[[NSProcessInfo processInfo] environment][@"MAPBOX_CLEAN_START"] boolValue]) {
+        return;
+    }
+
     NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
     NSData *archivedCamera = [defaults objectForKey:@"MBXCamera"];
     MGLMapCamera *camera = archivedCamera ? [NSKeyedUnarchiver unarchiveObjectWithData:archivedCamera] : nil;

platform/ios/uitest/MGLUITestCase.m

@@ -4,39 +4,20 @@
 
 @implementation MGLUITestCase
 
-- (instancetype)init {
-    if (self = [super init]) {
-    }
-    return self;
-}
-
 - (void)setUp {
     [super setUp];
 
+    self.continueAfterFailure = NO;
     [XCUIDevice sharedDevice].orientation = UIDeviceOrientationPortrait;
 
     // Launch the application, bypassing the access token prompt.
     _app = [[XCUIApplication alloc] init];
     NSMutableDictionary <NSString *, NSString *> *environment = _app.launchEnvironment.mutableCopy;
     environment[@"MAPBOX_ACCESS_TOKEN"] = MGLUITestsBogusAccessToken;
+    environment[@"MAPBOX_DISABLE_ANIMATIONS"] = @"1";
+    environment[@"MAPBOX_CLEAN_START"] = @"1";
     _app.launchEnvironment = environment;
     [_app launch];
-
-    // Reset the viewport.
-    XCUIElement *settingsElement = _app.navigationBars[@"MBXNavigationBar"].buttons[@"MBXSettingsButton"];
-    XCUIElementQuery *collectionViewsQuery = _app.sheets[@"Map Settings"].collectionViews;
-    [settingsElement tap];
-    [collectionViewsQuery.buttons[@"Reset Position"] tap];
-
-    // Remove all annotations.
-    [settingsElement tap];
-    [_app.sheets[@"Map Settings"] swipeUp];
-    [collectionViewsQuery.buttons[@"Remove Annotations"] tap];
-
-}
-
-- (BOOL)continueAfterFailure {
-    return NO;
 }
 
 @end