From b5e6f6cdde9b7af632e1db7d9f960420973d7940 Mon Sep 17 00:00:00 2001
From: jmkiley <jordan.kiley@mapbox.com>
Date: Fri, 28 Jun 2019 15:33:04 -0700
Subject: [ios] add completion to invalidateOfflineRegionForPack, start tests

---
 platform/darwin/src/MGLOfflineStorage.mm       |  4 ++++
 platform/darwin/test/MGLOfflineStorageTests.mm | 19 +++++++++++++++++++
 2 files changed, 23 insertions(+)

diff --git a/platform/darwin/src/MGLOfflineStorage.mm b/platform/darwin/src/MGLOfflineStorage.mm
index 6a6df0e480..f84db344b5 100644
--- a/platform/darwin/src/MGLOfflineStorage.mm
+++ b/platform/darwin/src/MGLOfflineStorage.mm
@@ -452,6 +452,7 @@ const MGLExceptionName MGLUnsupportedRegionTypeException = @"MGLUnsupportedRegio
     mbgl::OfflineRegion& region = *pack.mbglOfflineRegion;
     NSError *error;
     if (!pack.mbglOfflineRegion) {
+        
         completion(nil);
         return; }
 
@@ -462,6 +463,9 @@ const MGLExceptionName MGLUnsupportedRegionTypeException = @"MGLUnsupportedRegio
                                                                                }];
         }
     });
+    dispatch_async(dispatch_get_main_queue(), [&, completion, error](void) {
+        completion(error);
+    });
 }
 
 - (void)reloadPacks {
diff --git a/platform/darwin/test/MGLOfflineStorageTests.mm b/platform/darwin/test/MGLOfflineStorageTests.mm
index 5551d8889b..f91c8958d3 100644
--- a/platform/darwin/test/MGLOfflineStorageTests.mm
+++ b/platform/darwin/test/MGLOfflineStorageTests.mm
@@ -413,4 +413,23 @@
     CFRunLoopRun();
 }
 
+- (void)testInvalidateAmbientCache {
+    [[MGLOfflineStorage sharedOfflineStorage] invalidateAmbientCacheWithCompletion:^(NSError * _Nullable error) {
+        XCTAssertNil(error);
+    }];
+}
+
+- (void)testClearCache {
+    [[MGLOfflineStorage sharedOfflineStorage] clearAmbientCacheWithCompletion:^(NSError * _Nullable error) {
+        XCTAssertNil(error);
+    }];
+}
+
+- (void)testResetDatabase {
+    [[MGLOfflineStorage sharedOfflineStorage] resetDatabaseWithCompletionHandler:^(NSError * _Nullable error) {
+        XCTAssertNil(error);
+    }];
+}
+
+
 @end
-- 
cgit v1.2.1