diff --git a/test/test.js b/test/test.js
index 7297d8af..12fba1d0 100644
--- a/test/test.js
+++ b/test/test.js
@@ -10,12 +10,24 @@ describe('xterm.js', function() {
 
   describe('evaluateKeyEscapeSequence', function() {
     it('should return \\x1b[5D when ctrl+left is passed', function() {
-      var event = { ctrlKey: true, keyCode: 37 };
-      assert.equal(xterm.evaluateKeyEscapeSequence(event).key, '\x1b[5D');
+      assert.equal(xterm.evaluateKeyEscapeSequence({ ctrlKey: true, keyCode: 37 }).key, '\x1b[5D');
     });
     it('should return \\x1b[5C when ctrl+right is passed', function() {
-      var event = { ctrlKey: true, keyCode: 39 };
-      assert.equal(xterm.evaluateKeyEscapeSequence(event).key, '\x1b[5C');
+      assert.equal(xterm.evaluateKeyEscapeSequence({ ctrlKey: true, keyCode: 39 }).key, '\x1b[5C');
+    });
+    it('should return the correct escape sequence for the F-keys', function() {
+      assert.equal(xterm.evaluateKeyEscapeSequence({ keyCode: 112 }).key, '\x1bOP');
+      assert.equal(xterm.evaluateKeyEscapeSequence({ keyCode: 113 }).key, '\x1bOQ');
+      assert.equal(xterm.evaluateKeyEscapeSequence({ keyCode: 114 }).key, '\x1bOR');
+      assert.equal(xterm.evaluateKeyEscapeSequence({ keyCode: 115 }).key, '\x1bOS');
+      assert.equal(xterm.evaluateKeyEscapeSequence({ keyCode: 116 }).key, '\x1b[15~');
+      assert.equal(xterm.evaluateKeyEscapeSequence({ keyCode: 117 }).key, '\x1b[17~');
+      assert.equal(xterm.evaluateKeyEscapeSequence({ keyCode: 118 }).key, '\x1b[18~');
+      assert.equal(xterm.evaluateKeyEscapeSequence({ keyCode: 119 }).key, '\x1b[19~');
+      assert.equal(xterm.evaluateKeyEscapeSequence({ keyCode: 120 }).key, '\x1b[20~');
+      assert.equal(xterm.evaluateKeyEscapeSequence({ keyCode: 121 }).key, '\x1b[21~');
+      assert.equal(xterm.evaluateKeyEscapeSequence({ keyCode: 122 }).key, '\x1b[23~');
+      assert.equal(xterm.evaluateKeyEscapeSequence({ keyCode: 123 }).key, '\x1b[24~');
     });
   });
 });