1 files changed, 11 insertions, 0 deletions
diff --git a/src/test/java/org/uic/barcode/test/utils/TestUtils.java b/src/test/java/org/uic/barcode/test/utils/TestUtils.java
index 9791b02..cee5623 100644
--- a/src/test/java/org/uic/barcode/test/utils/TestUtils.java
+++ b/src/test/java/org/uic/barcode/test/utils/TestUtils.java
@@ -28,6 +28,17 @@ public class TestUtils {
     }
 
     
+    /* s must be an even-length string. */
+    public static byte[] hexStringToByteArray(String s) {
+        int len = s.length();
+        byte[] data = new byte[len / 2];
+        for (int i = 0; i < len; i += 2) {
+            data[i / 2] = (byte) ((Character.digit(s.charAt(i), 16) << 4)
+                                 + Character.digit(s.charAt(i+1), 16));
+        }
+        return data;
+    }
+    
     public static Date parseDate (String source){
     	
     	SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd");