Added test for NSMutableArray

Author: joshuatbrown

TestFoundation/TestNSArray.swift

@@ -27,7 +27,8 @@ class TestNSArray : XCTestCase {
             ("test_enumeration", test_enumeration),
             ("test_sequenceType", test_sequenceType),
             ("test_getObjects", test_getObjects),
-            ("test_binarySearch", test_binarySearch)
+            ("test_binarySearch", test_binarySearch),
+            ("test_replaceObjectsInRange_withObjectsFromArray", test_replaceObjectsInRange_withObjectsFromArray),
         ]
     }
 
@@ -148,4 +149,23 @@ class TestNSArray : XCTestCase {
 
         return .OrderedDescending
     }
+    
+    func test_replaceObjectsInRange_withObjectsFromArray() {
+        let array1 = NSMutableArray(array:[
+            "foo1".bridge(),
+            "bar1".bridge(),
+            "baz1".bridge()])
+        
+        let array2: [AnyObject] = [
+            "foo2".bridge(),
+            "bar2".bridge(),
+            "baz2".bridge()]
+        
+        array1.replaceObjectsInRange(NSMakeRange(0, 2), withObjectsFromArray: array2)
+        
+        XCTAssertEqual(array1[0] as? NSString, "foo2".bridge(), "Expected foo2 but was \(array1[0])")
+        XCTAssertEqual(array1[1] as? NSString, "bar2".bridge(), "Expected bar2 but was \(array1[1])")
+        XCTAssertEqual(array1[2] as? NSString, "baz2".bridge(), "Expected baz2 but was \(array1[2])")
+        XCTAssertEqual(array1[3] as? NSString, "baz1".bridge(), "Expected baz1 but was \(array1[3])")
+    }
 }