Source Code for Module tests.test_context

 1  import numpy 
 2   
 3  from glitter import EnumConstant 
 4  from glitter.contexts import context_manager 
 5   
 6 -def check_property(context, name): 
 7      value = getattr(context, name) 
 8      try: 
 9          if isinstance(value, EnumConstant): 
10              if name in ("draw_buffer", "read_buffer"): 
11                  return # avoid problems with unavailable stereo buffers 
12              valid_values = value._enum._reverse_dict.values() 
13              for value in valid_values: 
14                  setattr(context, name, value) 
15                  assert numpy.all(getattr(context, name) == value), "property %s is broken" % name 
16          else: 
17              if type(value) is float: 
18                  value *= 0.5 
19                  setattr(context, name, value) 
20                  assert numpy.all(getattr(context, name) == value), "property %s is broken" % name 
21                  value += 0.5 
22                  setattr(context, name, value) 
23                  assert numpy.all(getattr(context, name) == value), "property %s is broken" % name 
24      except AttributeError: 
25          pass # "AttributeError: can't set attribute" is okay for read-only attributes 
26   
27 -def test_property_generator(): 
28      context = context_manager.current_context or context_manager.create_default_context() 
29      properties = [x for x in dir(context) if not x.startswith("_")] 
30   
31      for p in properties: 
32          yield check_property, context, p 
33