Format empty strings as (empty string)

Author: Christian Johansen

lib/formatio.js

@@ -64,6 +64,7 @@
 
     function ascii(f, object, processed, indent) {
         if (typeof object === "string") {
+            if (object.length === 0) { return "(empty string)"; }
             var qs = f.quoteStrings;
             var quote = typeof qs !== "boolean" || qs;
             return processed || quote ? '"' + object + '"' : object;

test/formatio-test.js

@@ -32,6 +32,10 @@
             assert.equals(formatio.ascii("A string"), '"A string"');
         },
 
+        "formats 0-length strings in a special way": function () {
+            assert.equals(formatio.ascii(""), "(empty string)");
+        },
+
         "formats booleans without quotes": function () {
             assert.equals(formatio.ascii(true), "true");
             assert.equals(formatio.ascii(false), "false");