def test_es2():
 try:
  from vispy.gloo.gl import es2
 except Exception:
  import ctypes
  ctypes.TEST_DLL = _DummyObject()
 from vispy.gloo.gl import es2
 _test_function_names(es2)
 _test_constant_names(es2)

def test_es2 ( ) : try : from vispy . gloo . gl import es2 except Exception : import ctypes ctypes . TEST_DLL = _DummyObject ( ) from vispy . gloo . gl import es2 _test_function_names ( es2 ) _test_constant_names ( es2 )
es2 backend should have all es 2 .