fix(common): stringify error on 'Cannot convert a Symbol value to a s…

…tring' (#2990) Fixes #2856
karma-runner · May 28, 2018 · 65b658a · 65b658a
1 parent c1526a1
commit 65b658a
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diff --git a/common/stringify.js b/common/stringify.js
@@ -14,6 +14,8 @@ var stringify = function stringify (obj, depth) {
   }
 
   switch (typeof obj) {
+    case 'symbol':
+      return obj.toString()
     case 'string':
       return "'" + obj + "'"
     case 'undefined':

diff --git a/test/client/stringify.spec.js b/test/client/stringify.spec.js
@@ -4,6 +4,10 @@ var assert = require('assert')
 var stringify = require('../../common/stringify')
 
 describe('stringify', function () {
+  it('should serialize symbols', function () {
+    assert.deepEqual(stringify(Symbol.for('x')), 'Symbol(x)')
+  })
+
   it('should serialize string', function () {
     assert.deepEqual(stringify('aaa'), "'aaa'")
   })