Fixed persian calendar segmentation fault (#1714)

* Fixed persian calendar segmentation fault

Signed-off-by: Mohammad Porooshani <[email protected]>

* Added test case for persian calendar in TestFoundation/TestCalendar

Signed-off-by: Mohammad Porooshani <[email protected]>

* Fixed test case in test collection.

Signed-off-by: Mohammad Porooshani <[email protected]>

* fixed closing quote

Signed-off-by: Mohammad Porooshani <[email protected]>

Author: mohpor

CoreFoundation/Locale.subproj/CFCalendar.c

@@ -270,6 +270,7 @@ CFCalendarRef CFCalendarCreateWithIdentifier(CFAllocatorRef allocator, CFStringR
     else if (CFEqual(kCFIslamicCalendar, identifier)) identifier = kCFIslamicCalendar;
     else if (CFEqual(kCFIslamicCivilCalendar, identifier)) identifier = kCFIslamicCivilCalendar;
     else if (CFEqual(kCFHebrewCalendar, identifier)) identifier = kCFHebrewCalendar;
+    else if (CFEqual(kCFPersianCalendar, identifier)) identifier = kCFPersianCalendar;
        else if (CFEqual(kCFISO8601Calendar, identifier)) identifier = kCFISO8601Calendar;
 //    else if (CFEqual(kCFChineseCalendar, identifier)) identifier = kCFChineseCalendar;
     else return NULL;

TestFoundation/TestCalendar.swift

@@ -16,6 +16,8 @@ class TestCalendar: XCTestCase {
             ("test_gettingDatesOnHebrewCalendar", test_gettingDatesOnHebrewCalendar ),
             ("test_gettingDatesOnChineseCalendar", test_gettingDatesOnChineseCalendar),
             ("test_gettingDatesOnISO8601Calendar", test_gettingDatesOnISO8601Calendar),
+            ("test_gettingDatesOnPersianCalendar",
+                test_gettingDatesOnPersianCalendar),
             ("test_copy",test_copy),
             ("test_addingDates", test_addingDates),
             ("test_datesNotOnWeekend", test_datesNotOnWeekend),
@@ -117,6 +119,18 @@ class TestCalendar: XCTestCase {
         XCTAssertEqual(components.isLeapMonth, true)
     }
 
+    func test_gettingDatesOnPersianCalendar() {
+        let date = Date(timeIntervalSince1970: 1539146705)
+
+        var calendar = Calendar(identifier: .persian)
+        calendar.timeZone = TimeZone(identifier: "UTC")!
+        let components = calendar.dateComponents([.year, .month, .day], from: date)
+        XCTAssertEqual(components.year, 1397)
+        XCTAssertEqual(components.month, 7)
+        XCTAssertEqual(components.day, 18)
+
+    }
+
     func test_ampmSymbols() {
         let calendar = Calendar(identifier: .gregorian)
         XCTAssertEqual(calendar.amSymbol, "AM")