diff --git a/src/modules/util.js b/src/modules/util.js
index 5defef9..041e670 100644
--- a/src/modules/util.js
+++ b/src/modules/util.js
@@ -192,6 +192,7 @@
 		},
 		str_replace: function(from, to, string)
 		{
+		
 		}
 	};
 
diff --git a/tests/tests.js b/tests/tests.js
index db9bd8e..afb6fd7 100644
--- a/tests/tests.js
+++ b/tests/tests.js
@@ -214,6 +214,45 @@
 	
 	});
 	
+	test("Array combine", function(){
+	
+		expect(3);
+	
+		var keys_5 = ["a", "u", "i", "e", "o"];
+		var keys_obj = {
+			"x": 2,
+			"a": 4,
+			"q": 3,
+			"r": 1,
+			"p": "q"
+		};
+		
+		var vals_5 = [1, 5, 3, 2, 4];
+		var vals_4 = [3, 6, 2, 7];
+		
+		var obj_combined = {
+			2:1,
+			4:5,
+			3:3,
+			1:2,
+			"q":4
+		};
+		
+		var combined = {
+			"a":1,
+			"u":5,
+			"i":3,
+			"e":2,
+			"o":4
+		};
+		
+		
+		equal($_.util.array_combine(keys_5, vals_4), false, "Can't combine arrays of different sizes");
+		deepEqual($_.util.array_combine(keys_obj, vals_5), obj_combined, "Combine with keys as object");
+		deepEqual($_.util.array_combine(keys_5, vals_5), combined, "Properly combines arrays");
+		
+	});
+	
 	test("Reverse Key Sort", function(){
 		expect(2);
 	
@@ -237,6 +276,41 @@
 		deepEqual($_.util.reverse_key_sort(test_o), test_sorted, "Object sort");
 		deepEqual($_.util.object_values($_.util.reverse_key_sort(test_array)), test_array_sorted, "Array Sort");
 	});
+	
+	test("Object Merge", function(){
+		expect(2);
+	
+		var arr1 = {
+				"color": "red", 
+				0: 2, 
+				1: 4
+			},
+			arr2 = {
+				0: "a", 
+				1: "b", 
+				"color": "green", 
+				"shape": "trapezoid", 
+				2: 4
+			},
+			res1 = {
+				"color": "green", 
+				0: 2, 
+				1: 4, 
+				2: "a", 
+				3: "b", 
+				"shape": "trapezoid", 
+				4: 4
+			},
+			arr3 = [],
+			arr4 = {
+				1:'value',
+			},
+			res2 = {0:'value'};
+			
+		deepEqual($_.util.object_merge(arr1, arr2), res1, "Merge objects with numeric and test keys");
+		deepEqual($_.util.object_merge(arr3, arr4), res2, "Merged object has reordered keys");
+	
+	});