From c9b14125d826d2f9990f1366d13823b8714ee4d8 Mon Sep 17 00:00:00 2001
From: Adam Hunter <adam@mapbox.com>
Date: Mon, 14 Sep 2015 12:02:35 -0700
Subject: [PATCH 1/2] Add test that setting the center coordinate cancels
 animations

---
 test/ios/MapViewTests.m | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/test/ios/MapViewTests.m b/test/ios/MapViewTests.m
index 98636d1a9..516ff1df8 100644
--- a/test/ios/MapViewTests.m
+++ b/test/ios/MapViewTests.m
@@ -220,6 +220,26 @@
                       @"panning map right should decrease center longitude");
 }
 
+- (void)testSetCenterCancelsTransitions {
+    CLLocationCoordinate2D dc = CLLocationCoordinate2DMake(38.894368, -77.036487);
+    CLLocationCoordinate2D dc_west = CLLocationCoordinate2DMake(38.894368, -77.076487);
+    [tester.mapView setCenterCoordinate:dc animated:NO];
+    [tester.mapView setCenterCoordinate:dc_west animated:YES];
+    dispatch_after(dispatch_time(DISPATCH_TIME_NOW, 0.15 * NSEC_PER_SEC),
+                   dispatch_get_main_queue(),
+                   ^{
+                       [tester.mapView setCenterCoordinate:dc animated:NO];
+                       XCTAssertEqualWithAccuracy(dc.latitude,
+                                                  tester.mapView.centerCoordinate.latitude,
+                                                  0.0005,
+                                                  @"setting center coordinate should cancel transitions");
+                       XCTAssertEqualWithAccuracy(dc.longitude,
+                                                  tester.mapView.centerCoordinate.longitude,
+                                                  0.0005,
+                                                  @"setting center coordinate should cancel transitions");
+                   });
+}
+
 - (void)testPanDisabled {
     tester.mapView.scrollEnabled = NO;
     CLLocationCoordinate2D centerCoordinate = tester.mapView.centerCoordinate;

From 620e554f677d05edd0a588b56f343435516c05a8 Mon Sep 17 00:00:00 2001
From: Adam Hunter <adam@mapbox.com>
Date: Tue, 15 Sep 2015 11:33:01 -0700
Subject: [PATCH 2/2] Fixes the test for setting center canceling animations. 
 A good submit to look at for writing asynchronous tests.

---
 test/ios/MapViewTests.m | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/test/ios/MapViewTests.m b/test/ios/MapViewTests.m
index 516ff1df8..d0913670c 100644
--- a/test/ios/MapViewTests.m
+++ b/test/ios/MapViewTests.m
@@ -221,6 +221,8 @@
 }
 
 - (void)testSetCenterCancelsTransitions {
+    XCTestExpectation *cameraIsInDCExpectation = [self expectationWithDescription:@"camera reset to DC"];
+    
     CLLocationCoordinate2D dc = CLLocationCoordinate2DMake(38.894368, -77.036487);
     CLLocationCoordinate2D dc_west = CLLocationCoordinate2DMake(38.894368, -77.076487);
     [tester.mapView setCenterCoordinate:dc animated:NO];
@@ -237,7 +239,12 @@
                                                   tester.mapView.centerCoordinate.longitude,
                                                   0.0005,
                                                   @"setting center coordinate should cancel transitions");
+                       [cameraIsInDCExpectation fulfill];
                    });
+    
+    [self waitForExpectationsWithTimeout:1.0 handler:^(NSError *error) {
+        ;
+    }];
 }
 
 - (void)testPanDisabled {