diff --git a/src/extensions/xtest.xml b/src/extensions/xtest.xml
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+++ b/src/extensions/xtest.xml
@@ -0,0 +1,104 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+Copyright (C) 2006 Ian Osgood
+All Rights Reserved.
+
+Permission is hereby granted, free of charge, to any person ob/Sintaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+Except as contained in this notice, the names of the authors or their
+institutions shall not be used in advertising or otherwise to promote the
+sale, use or other dealings in this Software without prior written
+authorization from the authors.
+-->
+
+<xcb header="xtest" extension-xname="XTEST" extension-name="Test">
+
+    <!-- Conforms to XTEST 2.1 -->
+    
+    <!-- Requests -->
+    <request name="GetVersion" opcode="0">
+        <field type="CARD8"  name="major_version" />
+        <pad bytes="1" />
+        <field type="CARD16" name="minor_version" />
+        <reply>
+            <field type="CARD8"  name="major_version" />
+            <field type="CARD16" name="minor_version" />
+        </reply>
+    </request>
+
+    <enum name="Cursor">
+        <item name="None">   <value>0</value></item>
+        <item name="Current"><value>1</value></item>
+    </enum>
+
+    <request name="CompareCursor" opcode="1">
+        <field type="WINDOW" name="window" />
+        <field type="CURSOR" name="cursor" />
+        <reply>
+            <field type="BOOL" name="same" />
+        </reply>
+    </request>
+    
+    <!-- There are several ways to use the FakeInput request:
+            1. Simulate a keypress:
+                type   = XCBKeyPress or XCBKeyRelease
+                detail = keycode
+            2. Simulate a button:
+                type   = XCBButtonPress or XCBButtonRelease
+                detail = enum XCBButton (1..5)
+            3. Simulate mouse motion:
+                type   = XCBMotionNotify
+                detail = 0 or 1
+                window = XCBNone or a root window id
+                rootX,
+                rootY  = position (relative if detail==1)
+
+        Version 2.2 adds support for the XInput extension:
+            4. Simulate a device keypress
+            5. Simulate a device button
+            6. Simulate a proximity event
+            7. Simulate a device motion event
+                [These are not yet supported, since we would also need to
+                 send the variable-length state of the axes.]
+
+        In each case, time is set to a delay in milliseconds.
+    -->
+
+    <request name="FakeInput" opcode="2">
+        <field type="BYTE"   name="type" />
+        <field type="BYTE"   name="detail" />
+        <pad bytes="2" />
+        <field type="CARD32" name="time" />
+        <field type="WINDOW" name="window" />
+        <pad bytes="8" />
+        <field type="CARD16" name="rootX" />
+        <field type="CARD16" name="rootY" />
+        <pad bytes="7" />
+        <!-- Version 2.2: XInput device -->
+        <field type="CARD8"  name="deviceid" />
+        <!-- Version 2.2: optional axes state here -->
+    </request>
+
+    <request name="GrabControl" opcode="3">
+        <field type="BOOL" name="impervious" />
+        <pad bytes="3" />
+    </request>
+    
+    <!-- No events or errors -->
+
+</xcb>
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