update test

test/es2020.dereq.js

@@ -0,0 +1,7 @@
+"use strict";
+
+function outer(_dereq_, bar) {
+  var foo = _dereq_('foo');
+  var bar = 100n;
+  return foo(bar);
+}

test/es2020.js

@@ -0,0 +1,7 @@
+"use strict";
+
+function outer(require, bar) {
+  var foo = require('foo');
+  var bar = 100n;
+  return foo(bar);
+}

test/test.js

@@ -176,6 +176,15 @@ describe('derequire', function(){
     });
   });
 
+  it('should work with es2020', function(done) {
+    fs.readFile('./test/es2020.js', 'utf8', function(err, source) {
+      fs.readFile('./test/es2020.dereq.js', 'utf8', function(err, expected) {
+        assert.equal( derequire(source), expected);
+        done();
+      });
+    });
+  });
+
   it('should work on multiple things', function(done) {
     fs.readFile('./test/define.js', 'utf8', function(err, source) {
       fs.readFile('./test/define.dereq.js', 'utf8', function(err, expected) {