[ios, osx] Coordinate formatter

Added a degree-minute-second coordinate formatter for general use. Use this formatter in iosapp and osxapp.

Added unit tests for the coordinate formatter and for round-tripping geometry types through NSValue.

2 files changed, 40 insertions, 0 deletions

diff --git a/platform/darwin/test/MGLCoordinateFormatterTests.m b/platform/darwin/test/MGLCoordinateFormatterTests.m
new file mode 100644
index 0000000000..84a17596b1
--- /dev/null
+++ b/platform/darwin/test/MGLCoordinateFormatterTests.m
@@ -0,0 +1,15 @@
+#import <Mapbox/Mapbox.h>
+#import <XCTest/XCTest.h>
+
+@interface MGLCoordinateFormatterTests : XCTestCase
+
+@end
+
+@implementation MGLCoordinateFormatterTests
+
+- (void)testStrings {
+    MGLCoordinateFormatter *formatter = [[MGLCoordinateFormatter alloc] init];
+    XCTAssertEqualObjects([formatter stringFromCoordinate:CLLocationCoordinate2DMake(38.9131982, -77.0325453144239)], @"38°54′48″N, 77°1′57″W");
+}
+
+@end
diff --git a/platform/darwin/test/MGLGeometryTests.mm b/platform/darwin/test/MGLGeometryTests.mm
index 73af0bb211..b9205e8d9d 100644
--- a/platform/darwin/test/MGLGeometryTests.mm
+++ b/platform/darwin/test/MGLGeometryTests.mm
@@ -52,4 +52,29 @@
     XCTAssertEqualWithAccuracy(18, MGLZoomLevelForAltitude(MGLAltitudeForZoomLevel(18, 60, 40, midSize), 60, 40, midSize), 3);
 }
 
+- (void)testGeometryBoxing {
+    CLLocationCoordinate2D coordinate = CLLocationCoordinate2DMake(38.9131982, -77.0325453144239);
+    CLLocationCoordinate2D roundTrippedCoordinate = [NSValue valueWithMGLCoordinate:coordinate].MGLCoordinateValue;
+    
+    XCTAssertEqual(coordinate.latitude, roundTrippedCoordinate.latitude, @"Latitude should round-trip.");
+    XCTAssertEqual(coordinate.longitude, roundTrippedCoordinate.longitude, @"Longitude should round-trip.");
+    
+    MGLCoordinateSpan span = MGLCoordinateSpanMake(4.383333333333335, -4.299999999999997);
+    MGLCoordinateSpan roundTrippedSpan = [NSValue valueWithMGLCoordinateSpan:span].MGLCoordinateSpanValue;
+    
+    XCTAssertEqual(span.latitudeDelta, roundTrippedSpan.latitudeDelta, @"Latitude delta should round-trip.");
+    XCTAssertEqual(span.longitudeDelta, roundTrippedSpan.longitudeDelta, @"Longitude delta should round-trip.");
+    
+    MGLCoordinateBounds bounds = MGLCoordinateBoundsMake(CLLocationCoordinate2DMake(38.9131982, -77.0325453144239),
+                                                         CLLocationCoordinate2DMake(37.7757368, -122.4135302));
+    MGLCoordinateBounds roundTrippedBounds = [NSValue valueWithMGLCoordinateBounds:bounds].MGLCoordinateBoundsValue;
+    
+    XCTAssertEqualObjects([NSValue valueWithMGLCoordinate:bounds.sw],
+                          [NSValue valueWithMGLCoordinate:roundTrippedBounds.sw],
+                          @"Southwest should round-trip.");
+    XCTAssertEqualObjects([NSValue valueWithMGLCoordinate:bounds.ne],
+                          [NSValue valueWithMGLCoordinate:roundTrippedBounds.ne],
+                          @"Northeast should round-trip.");
+}
+
 @end