[ios] Fix and expand accessibility feature transliteration

- Fixed pre-iOS 11 compatibility.
- Expanded transliteration to all supported languages.

2 files changed, 25 insertions, 2 deletions

diff --git a/platform/ios/test/MGLMapAccessibilityElementTests.m b/platform/ios/test/MGLMapAccessibilityElementTests.m
index 5c79d85de1..89a595421e 100644
--- a/platform/ios/test/MGLMapAccessibilityElementTests.m
+++ b/platform/ios/test/MGLMapAccessibilityElementTests.m
@@ -19,13 +19,17 @@
     };
     MGLFeatureAccessibilityElement *element = [[MGLFeatureAccessibilityElement alloc] initWithAccessibilityContainer:self feature:feature];
     XCTAssertEqualObjects(element.accessibilityLabel, @"English", @"Accessibility label should be localized.");
-    
+
     feature.attributes = @{
         @"name": @"Цинциннати",
         @"name_en": @"Цинциннати",
     };
     element = [[MGLFeatureAccessibilityElement alloc] initWithAccessibilityContainer:self feature:feature];
-    XCTAssertEqualObjects(element.accessibilityLabel, @"Cincinnati", @"Accessibility label should be romanized.");
+    if (@available(iOS 9.0, *)) {
+        XCTAssertEqualObjects(element.accessibilityLabel, @"Cincinnati", @"Accessibility label should be romanized.");
+    } else {
+        XCTAssertEqualObjects(element.accessibilityLabel, @"Цинциннати", @"Accessibility label should not be romanized.");
+    }
 }
 
 - (void)testPlaceFeatureValues {
diff --git a/platform/ios/test/MGLNSOrthographyAdditionsTests.m b/platform/ios/test/MGLNSOrthographyAdditionsTests.m
new file mode 100644
index 0000000000..351fe4227e
--- /dev/null
+++ b/platform/ios/test/MGLNSOrthographyAdditionsTests.m
@@ -0,0 +1,19 @@
+#import <XCTest/XCTest.h>
+
+#import "NSOrthography+MGLAdditions.h"
+#import "MGLVectorSource_Private.h"
+
+@interface MGLNSOrthographyAdditionsTests : XCTestCase
+
+@end
+
+@implementation MGLNSOrthographyAdditionsTests
+
+- (void)testStreetsLanguages {
+    for (NSString *language in [MGLVectorSource mapboxStreetsLanguages]) {
+        NSString *dominantScript = [NSOrthography mgl_dominantScriptForMapboxStreetsLanguage:language];
+        XCTAssertNotEqualObjects(dominantScript, @"Zyyy", @"Mapbox Streets languages should have dominant script");
+    }
+}
+
+@end