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-rw-r--r--lib/querystring.js8
-rw-r--r--test/parallel/test-querystring-escape.js24
2 files changed, 30 insertions, 2 deletions
diff --git a/lib/querystring.js b/lib/querystring.js
index ad1b5861a0..bacfc4bd70 100644
--- a/lib/querystring.js
+++ b/lib/querystring.js
@@ -90,8 +90,12 @@ for (var i = 0; i < 256; ++i)
QueryString.escape = function(str) {
// replaces encodeURIComponent
// http://www.ecma-international.org/ecma-262/5.1/#sec-15.1.3.4
- if (typeof str !== 'string')
- str += '';
+ if (typeof str !== 'string') {
+ if (typeof str === 'object')
+ str = String(str);
+ else
+ str += '';
+ }
var out = '';
var lastPos = 0;
diff --git a/test/parallel/test-querystring-escape.js b/test/parallel/test-querystring-escape.js
new file mode 100644
index 0000000000..e15ce3266d
--- /dev/null
+++ b/test/parallel/test-querystring-escape.js
@@ -0,0 +1,24 @@
+'use strict';
+require('../common');
+const assert = require('assert');
+
+const qs = require('querystring');
+
+assert.deepEqual(qs.escape(5), '5');
+assert.deepEqual(qs.escape('test'), 'test');
+assert.deepEqual(qs.escape({}), '%5Bobject%20Object%5D');
+assert.deepEqual(qs.escape([5, 10]), '5%2C10');
+
+// using toString for objects
+assert.strictEqual(
+ qs.escape({test: 5, toString: () => 'test', valueOf: () => 10 }),
+ 'test'
+);
+
+// toString is not callable, must throw an error
+assert.throws(() => qs.escape({toString: 5}));
+
+// should use valueOf instead of non-callable toString
+assert.strictEqual(qs.escape({toString: 5, valueOf: () => 'test'}), 'test');
+
+assert.throws(() => qs.escape(Symbol('test')));