Source Code for Module tests.test_texture

 1  import numpy 
 2   
 3  from glitter import Texture3D, Datatype, EnumConstant, Texture, uint8, int8, uint16, int16, uint32, int32, float32 
 4   
 5 -def check_texture(shape, dtype, vrange): 
 6      minval, maxval = vrange 
 7      data = ((maxval - minval) * numpy.random.random(shape) + minval).astype(dtype.as_numpy()) 
 8      texture = Texture3D(data) 
 9      assert (texture.data == data).all(), "data is broken" 
10      assert texture.shape == data.shape, "shape is broken (was %s, is %s)" % (data.shape, texture.shape) 
11      assert texture.dtype == Datatype.from_numpy(data.dtype), "dtype is broken (was %s, is %s)" % (Datatype.from_numpy(data.dtype), texture.dtype) 
12   
13 -def test_texture_generator(): 
14      shapes = ((4, 4, 4, 4), (4, 4, 4, 3), (4, 16, 8, 3), (5, 4, 4, 3), (5, 5, 5, 3), (6, 6, 6, 3), (7, 13, 5, 3), (1, 1, 3, 3)) 
15      dtypes = (uint8, int8, uint16, int16, uint32, int32, float32) 
16      vranges = ((0, (1<<8)-1), (-1<<7, (1<<7)-1), (0, (1<<16)-1), (-1<<15, (1<<15)-1), (0, (1<<32)-1), (-1<<31, (1<<31)-1), (-10.0, 10.0)) 
17   
18      for shape in shapes: 
19          for dtype, vrange in zip(dtypes, vranges): 
20              yield check_texture, shape, dtype, vrange 
21   
22 -def check_property(texture, name): 
23      value = getattr(texture, name) 
24      if isinstance(value, EnumConstant): 
25          valid_values = value._enum._reverse_dict.values() 
26          for value in valid_values: 
27              setattr(texture, name, value) 
28              assert getattr(texture, name) == value, "property %s is broken" % name 
29      else: 
30          setattr(texture, name, value) 
31          assert getattr(texture, name) == value, "property %s is broken" % name 
32   
33 -def test_property_generator(): 
34      texture = Texture3D(numpy.random.random((1, 1, 1, 4)).astype(numpy.float32)) 
35      properties = [x for x in dir(texture) if x != "sampler" and not x.startswith("_") and type(getattr(Texture, x)) == property] 
36   
37      for p in properties: 
38          if p in ("data", "shape", "dtype"): 
39              continue 
40          if getattr(Texture, p).fset is None: 
41              continue 
42          yield check_property, texture, p 
43