1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
|
# -*- coding: utf-8 -*-
import sys
import pytest
from admesh import Stl
from utils import asset
pypy2 = '__pypy__' in sys.builtin_module_names and sys.version_info.major == 2
class TestStats(object):
'''Tests that stats are propagated'''
def test_number_of_facets(self):
'''Tests if block has 12 facets'''
stl = Stl(asset('block.stl'))
assert stl.stats['number_of_facets'] == 12
def test_volume(self):
'''Tests the volume of the block'''
stl = Stl(asset('block.stl'))
stl.calculate_volume()
assert stl.stats['volume'] == 1
def test_header(self):
'''Tests the header of the block'''
stl = Stl(asset('block.stl'))
assert stl.stats['header'] == 'solid admesh'.encode('UTF-8')
def test_add_facets_updates_stats(self):
'''Tests if adding new facets updates the mesh stats'''
stl = Stl(asset('block.stl'))
max_x = stl.stats['max']['x']
bounding_diameter = stl.stats['bounding_diameter']
stl.add_facets([(((0, 0, 0), (1, 1, 1), (max_x + 1, 0, 0)), (1, 0, 0))])
assert max_x + 1 == stl.stats['max']['x']
assert bounding_diameter < stl.stats['bounding_diameter']
@pytest.mark.parametrize('type', ('iterable', 'dict'))
def test_stats_are_same_with_created(self, type):
''''Test a manually constructed cube has the same stats as if loaded'''
XYZ = ('x', 'y', 'z')
stl1 = Stl(asset('block.stl'))
if type == 'iterable':
facets = [[[[v[a] for a in XYZ] for v in f['vertex']],
[f['normal'][a] for a in XYZ]] for f in stl1]
else:
facets = list(stl1)
stl2 = Stl()
stl2.add_facets(facets)
stats1, stats2 = stl1.stats, stl2.stats
for stats in (stats1, stats2):
del stats['type'] # ASCII != INMEMORY
del stats['original_num_facets'] # 12 != 0
del stats['header'] # nothing != "solid admesh"
assert stats1 == stats2
def test_write_to_stats(self):
'''Test if writing to stats raises exception'''
stl = Stl()
with pytest.raises(TypeError if pypy2 else AttributeError):
stl.stats = {}
def test_delete_stats(self):
'''Test if deleting stats raises exception'''
stl = Stl()
with pytest.raises(AttributeError):
del stl.stats
|
