Verify.js:

use clean() only if there is a string, else output json

lib/verify.js

@@ -7,8 +7,6 @@ var exerciser = require('workshopper-exercise');
 var filecheck = require('workshopper-exercise/filecheck');
 var execute = require('workshopper-exercise/execute');
 
-var cleanAndStringify = _.compose(clean, stringify);
-
 module.exports = function (tests, run) {
     var exercise = _.compose(execute, filecheck)(exerciser());
 
@@ -38,7 +36,7 @@ module.exports = function (tests, run) {
 
             logcompare(run.json, result, run.expect);
 
-            if (!result || !_.isEqual(result, run.expect)) {
+            if (!result || !_.isEqual(clean(result), clean(run.expect))) {
                 this.emit('fail', 'Test');
                 return callback(null, false);
             }
@@ -50,7 +48,7 @@ module.exports = function (tests, run) {
         var allPassed = _(tests).map(function(item, element){
             var isCorrect;
             try {
-                isCorrect = _.isEqual(item.shouldbe, usersolution(item.input));
+                isCorrect = _.isEqual(clean(item.shouldbe), clean(usersolution(item.input)));
             } catch (e) { }
 
             if(!isCorrect) {
@@ -74,21 +72,26 @@ function logcompare(input, output, shouldbe){
         line(),
         'Input',
         line(),
-        stringify(input).replace(/\\n/g,"\n"),
+        stringify(input),
         line(),
-        'Output: ' + cleanAndStringify(output).replace(/\\n/g,"\n"),
+        'Output: ' + stringify(output),
         line(),
-        'Output should be: ' + cleanAndStringify(shouldbe).replace(/\\n/g,"\n"),
+        'Output should be: ' + stringify(shouldbe),
         line()
     ].join('\n'));
 }
 
 function stringify(obj) {
-    return JSON.stringify(obj, null, 2);
+    return JSON.stringify(obj, null, 2).replace(/\\n/g,"\n");
 }
 
 function clean(str) {
     if (!str) return void 0;
+
+    if (typeof str !== "string") {
+        return str;
+    }
+
     return str.replace(/\r?\n|\r/g, '').replace(/(\s)+/g, '$1');
 }