diff --git a/src/xterm.js b/src/xterm.js
index f4a1d3d..ac06960 100644
--- a/src/xterm.js
+++ b/src/xterm.js
@@ -2326,6 +2326,12 @@
       return this.cancel(ev, true);
     };
 
+    /**
+     * Returns an object that determines how a KeyboardEvent should be handled. The key of the
+     * returned value is the new key code to pass to the PTY.
+     *
+     * Reference: http://invisible-island.net/xterm/ctlseqs/ctlseqs.html
+     */
     Terminal.prototype.evaluateKeyEscapeSequence = function(ev) {
       var result = {
         // Whether to cancel event propogation (NOTE: this may not be needed since the event is
@@ -2422,14 +2428,10 @@
             result.key = '\x1b[B';
           }
           break;
-        // delete
-        case 46:
-          result.key = '\x1b[3~';
-          break;
         // insert
-        case 45:
-          result.key = '\x1b[2~';
-          break;
+        case 45: result.key = '\x1b[2~'; break;
+        // delete
+        case 46: result.key = '\x1b[3~'; break;
         // home
         case 36:
           if (this.applicationKeypad) {
diff --git a/test/test.js b/test/test.js
index 12fba1d..e603d65 100644
--- a/test/test.js
+++ b/test/test.js
@@ -9,25 +9,49 @@ describe('xterm.js', function() {
   });
 
   describe('evaluateKeyEscapeSequence', function() {
-    it('should return \\x1b[5D when ctrl+left is passed', function() {
-      assert.equal(xterm.evaluateKeyEscapeSequence({ ctrlKey: true, keyCode: 37 }).key, '\x1b[5D');
+    it('should return the correct escape sequence for unmodified keys', function() {
+      // Backspace
+      assert.equal(xterm.evaluateKeyEscapeSequence({ keyCode: 8 }).key, '\x7f'); // ^?
+      // Tab
+      assert.equal(xterm.evaluateKeyEscapeSequence({ keyCode: 9 }).key, '\t');
+      // Return/enter
+      assert.equal(xterm.evaluateKeyEscapeSequence({ keyCode: 13 }).key, '\r'); // CR
+      // Escape
+      assert.equal(xterm.evaluateKeyEscapeSequence({ keyCode: 27 }).key, '\x1b');
+      // Page up, page down
+      assert.equal(xterm.evaluateKeyEscapeSequence({ keyCode: 33 }).key, '\x1b[5~'); // CSI 5 ~
+      assert.equal(xterm.evaluateKeyEscapeSequence({ keyCode: 34 }).key, '\x1b[6~'); // CSI 6 ~
+      // End, Home
+      assert.equal(xterm.evaluateKeyEscapeSequence({ keyCode: 35 }).key, '\x1bOF'); // SS3 F
+      assert.equal(xterm.evaluateKeyEscapeSequence({ keyCode: 36 }).key, '\x1bOH'); // SS3 H
+      // Left, up, right, down arrows
+      assert.equal(xterm.evaluateKeyEscapeSequence({ keyCode: 37 }).key, '\x1b[D'); // CSI D
+      assert.equal(xterm.evaluateKeyEscapeSequence({ keyCode: 38 }).key, '\x1b[A'); // CSI A
+      assert.equal(xterm.evaluateKeyEscapeSequence({ keyCode: 39 }).key, '\x1b[C'); // CSI C
+      assert.equal(xterm.evaluateKeyEscapeSequence({ keyCode: 40 }).key, '\x1b[B'); // CSI B
+      // Insert
+      assert.equal(xterm.evaluateKeyEscapeSequence({ keyCode: 45 }).key, '\x1b[2~'); // CSI 2 ~
+      // Delete
+      assert.equal(xterm.evaluateKeyEscapeSequence({ keyCode: 46 }).key, '\x1b[3~'); // CSI 3 ~
+      // F1-F12
+      assert.equal(xterm.evaluateKeyEscapeSequence({ keyCode: 112 }).key, '\x1bOP'); // SS3 P
+      assert.equal(xterm.evaluateKeyEscapeSequence({ keyCode: 113 }).key, '\x1bOQ'); // SS3 Q
+      assert.equal(xterm.evaluateKeyEscapeSequence({ keyCode: 114 }).key, '\x1bOR'); // SS3 R
+      assert.equal(xterm.evaluateKeyEscapeSequence({ keyCode: 115 }).key, '\x1bOS'); // SS3 S
+      assert.equal(xterm.evaluateKeyEscapeSequence({ keyCode: 116 }).key, '\x1b[15~'); // CSI 1 5 ~
+      assert.equal(xterm.evaluateKeyEscapeSequence({ keyCode: 117 }).key, '\x1b[17~'); // CSI 1 7 ~
+      assert.equal(xterm.evaluateKeyEscapeSequence({ keyCode: 118 }).key, '\x1b[18~'); // CSI 1 8 ~
+      assert.equal(xterm.evaluateKeyEscapeSequence({ keyCode: 119 }).key, '\x1b[19~'); // CSI 1 9 ~
+      assert.equal(xterm.evaluateKeyEscapeSequence({ keyCode: 120 }).key, '\x1b[20~'); // CSI 2 0 ~
+      assert.equal(xterm.evaluateKeyEscapeSequence({ keyCode: 121 }).key, '\x1b[21~'); // CSI 2 1 ~
+      assert.equal(xterm.evaluateKeyEscapeSequence({ keyCode: 122 }).key, '\x1b[23~'); // CSI 2 3 ~
+      assert.equal(xterm.evaluateKeyEscapeSequence({ keyCode: 123 }).key, '\x1b[24~'); // CSI 2 4 ~
     });
-    it('should return \\x1b[5C when ctrl+right is passed', function() {
-      assert.equal(xterm.evaluateKeyEscapeSequence({ ctrlKey: true, keyCode: 39 }).key, '\x1b[5C');
+    it('should return \\x1b[5D for ctrl+left', function() {
+      assert.equal(xterm.evaluateKeyEscapeSequence({ ctrlKey: true, keyCode: 37 }).key, '\x1b[5D'); // CSI 5 D
     });
-    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~');
+    it('should return \\x1b[5C for ctrl+right', function() {
+      assert.equal(xterm.evaluateKeyEscapeSequence({ ctrlKey: true, keyCode: 39 }).key, '\x1b[5C'); // CSI 5 C
     });
   });
 });