test case for merge sort in ruby and swift

do check the test case for ruby which i am not sure about

Author: Tarang Khanna

Merge_Sort/Ruby/TarangKhanna/merge_sort_test.rb

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+require './merge_sort'
+
+describe "#merge_sort" do
+  it "Sort The Array" do
+    merge_sort([5,3,6,2,4]).should eq([2,3,3,5,6])
+  end
+end

Merge_Sort/Swift/TarangKhanna/merge_sort_test.swift

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+//
+//  merge_sort_test.swift
+//  
+//
+//  Created by Tarang khanna on 7/29/15.
+//
+//
+
+import Foundation
+
+func testBubbleSort() { // swift 1.2 compatible
+    
+    let numberList : Array<Int> = [4, 3, 23, 2, 14, 41, 15,12]
+    var mergeSortTest: merge_sort = merge_sort()
+    
+    // pass the list to be sorted
+    var resultList: Array<Int>! = mergeSortTest.mergesort(numberList)
+    
+    // determine if the numbers are sorted
+    var x: Int = 0
+    for (x = 0; x < resultList.count; x++) {
+        
+        if ((x > 0) && (resultList[x] < resultList[x - 1])) {
+            XCTFail("numberlist items not in sorted order")
+        }
+        else {
+            println("item \(resultList[x]) is sorted")
+        }
+        
+        
+    } // end for
+    
+    
+    
+} // end function
+
+// supports all datatypes using generics