Implemented utils.leftPad.

unexpectedjs · Apr 11, 2014 · f545947 · f545947
1 parent 5dccb43
commit f545947
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diff --git a/lib/unexpected-types.js b/lib/unexpected-types.js
@@ -4,6 +4,7 @@
 
     var utils = namespace.utils;
     var isRegExp = utils.isRegExp;
+    var leftPad = utils.leftPad;
 
     expect.addType({
         identify: function (obj) {
@@ -69,7 +70,7 @@
             for (var j = 0 ; j < width ; j += 1) {
                 if (i + j < obj.length) {
                     var octet = obj[i + j];
-                    hexChars += (octet < 16 ? '0' : '') + octet.toString(16).toUpperCase() + ' ';
+                    hexChars += leftPad(octet.toString(16).toUpperCase(), 2, '0') + ' ';
                     asciiChars += (octet >= 32 && octet < 127) ? String.fromCharCode(octet) : '.';
                 } else {
                     hexChars += '   ';

diff --git a/lib/unexpected-utils.js b/lib/unexpected-utils.js
@@ -147,6 +147,14 @@
                 }
             }
             return null;
+        },
+
+        leftPad: function (str, width, ch) {
+            ch = ch || ' ';
+            while (str.length < width) {
+                str = ch + str;
+            }
+            return str;
         }
     };