From 556a34ba3470cb187fbf0c288dae197f174915d7 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?F=C3=A1bio=20Santos?= <fabiosantosart@gmail.com>
Date: Sun, 25 Mar 2018 20:35:12 +0100
Subject: [PATCH] add mocha test

---
 test/mocha/spidermonkey.js | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/test/mocha/spidermonkey.js b/test/mocha/spidermonkey.js
index ccd11c43..756a2f43 100644
--- a/test/mocha/spidermonkey.js
+++ b/test/mocha/spidermonkey.js
@@ -23,6 +23,15 @@ describe("spidermonkey export/import sanity test", function() {
         });
     });
 
+    it("should not add unnecessary escape slashes to regexps", function() {
+        var input = "/[\\\\/]/;";
+        var ast = uglify.parse(input).to_mozilla_ast();
+        assert.equal(
+            uglify.AST_Node.from_mozilla_ast(ast).print_to_string(),
+            input
+        );
+    });
+
     it("Should judge between directives and strings correctly on import", function() {
         var tests = [
             {