@@ -48,7 +48,7 @@ cdef void callpyfunc_arg(void* p):
 
 
 def set_main_loop(py_function, fps, simulate_infinite_loop):
-    #print "def: set_main_loop", func, fps, simulate_infinite_loop
+    #print "def: set_main_loop", py_function, fps, simulate_infinite_loop
     emscripten_set_main_loop_arg(callpyfunc, <PyObject*>py_function, fps, simulate_infinite_loop)
 
 def async_call(func, arg, millis):
 
@@ -0,0 +1,46 @@
+# Fake python wrapper for emscripten_* C functions for native testing
+
+# Copyright (C) 2018  Sylvain Beucler
+
+# Copying and distribution of this file, with or without modification,
+# are permitted in any medium without royalty provided the copyright
+# notice and this notice are preserved.  This file is offered as-is,
+# without any warranty.
+
+import time
+import sys
+
+sys.platform = 'emscripten'
+
+def set_main_loop(py_function, fps, simulate_infinite_loop):
+    print "def: set_main_loop", py_function, fps, simulate_infinite_loop
+    if not simulate_infinite_loop:
+        # TODO: simulate browser loop in another Python script?
+        pass
+    py_function = <object>(py_function)
+    if fps <= 0:
+        fps = 60  # common screen refresh rate
+    while True:
+        time.sleep(1.0/fps)
+        py_function()
+
+def async_call(func, arg, millis):
+    py_function = <object>(func)
+    py_arg = <object>(arg)
+    py_function(py_arg)
+
+def exit_with_live_runtime():
+    print "exit_with_live_runtime"
+
+def sleep(ms):
+    time.sleep(ms/1000.0)
+
+def sleep_with_yield(ms):
+    sleep(ms)
+
+def run_script(script):
+    print "run_script"
+    print '\n'.join(["  "+l for l in script.splitlines()])
+
+def syncfs():
+    print "syncfs"