1 files changed, 30 insertions, 0 deletions
diff --git a/platform/darwin/test/MGLDistanceFormatterTests.m b/platform/darwin/test/MGLDistanceFormatterTests.m
new file mode 100644
index 0000000000..f15ad9d313
--- /dev/null
+++ b/platform/darwin/test/MGLDistanceFormatterTests.m
@@ -0,0 +1,30 @@
+#import <Mapbox/Mapbox.h>
+#import <XCTest/XCTest.h>
+
+@interface MGLDistanceFormatterTests : XCTestCase
+
+@end
+
+@implementation MGLDistanceFormatterTests
+
+- (void)testAbbreviatedMetricUnits {
+    MGLDistanceFormatter *formatter = [[MGLDistanceFormatter alloc] init];
+    formatter.numberFormatter.locale = [NSLocale localeWithLocaleIdentifier:@"en_CA"];
+    for (CLLocationDistance distance=0; distance <= 10000; distance+=5) {
+        NSString *unit = [[formatter stringFromDistance:distance] componentsSeparatedByString:@" "][1];
+        NSPredicate *predicate = [NSPredicate predicateWithFormat:@"SELF IN %@", @[@"mm", @"cm", @"m", @"km"]];
+        XCTAssert([predicate evaluateWithObject:unit], @"Should only contain metric units");
+    }
+}
+
+- (void)testAbbreviatedImperialUnits {
+    MGLDistanceFormatter *formatter = [[MGLDistanceFormatter alloc] init];
+    formatter.numberFormatter.locale = [NSLocale localeWithLocaleIdentifier:@"en_US"];
+    for (CLLocationDistance distance=0; distance <= 10000; distance+=5) {
+        NSString *unit = [[formatter stringFromDistance:distance] componentsSeparatedByString:@" "][1];
+        NSPredicate *predicate = [NSPredicate predicateWithFormat:@"SELF IN %@", @[@"ft", @"mi"]];
+        XCTAssert([predicate evaluateWithObject:unit], @"Should only contain imperial units");
+    }
+}
+
+@end