def test_saved_equals_original_binary(self):
'''Tests if saved binary file is identical to the loaded one'''
stl1 = Stl(asset('block.stl'))
stl1.write_binary(asset('block_binary.stl'))
stl2 = Stl(asset('block_binary.stl'))
stl2.write_binary(asset('block_binary2.stl'))
assert filecmp.cmp(asset('block_binary.stl'), asset('block_binary2.stl'))
def test_list_from_stl(self):
'''Tests if list(stl) returns all the facets'''
stl = Stl(asset('block.stl'))
facets = list(stl)
assert len(facets) == 12
assert len(facets[0]['vertex']) == 3
assert facets[0]['vertex'][0]['x'] == 0
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_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']
def test_saved_equals_original_ascii(self):
'''Tests if saved ASCII file is identical to the loaded one'''
stl = Stl(asset('block.stl'))
stl.write_ascii(asset('block_ascii.stl'))
assert filecmp.cmp(asset('block.stl'), asset('block_ascii.stl'))
def test_save_load_unicode(self):
'''Tests saving and loading files with Unicode filenames'''
stl1 = Stl(asset('block.stl'))
stl1.write_ascii(asset(u'block_ěščřž.stl'))
stl2 = Stl(asset(u'block_ěščřž.stl'))
def test_len_is_number_of_facets(self):
'''Tests if len() of Stl object is number of factes'''
stl = Stl(asset('block.stl'))
assert len(stl) == 12
def test_str(self):
'''Tests the output of str'''
stl = Stl(asset('block.stl'))
assert str(stl) == "Stl('admesh')"
def test_emtpy_stl_has_0_len(self):
'''Test if newly created Stl has len() == 0'''
stl = Stl()
assert len(stl) == 0
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_delete_stats(self):
'''Test if deleting stats raises exception'''
stl = Stl()
with pytest.raises(AttributeError):
del stl.stats
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_header(self):
'''Tests the header of the block'''
stl = Stl(asset('block.stl'))
assert stl.stats['header'] == 'solid admesh'.encode('UTF-8')
def test_saved_binary_is_binary(self):
'''Tests if saved binary file is identical to the loaded one'''
stl1 = Stl(asset('block.stl'))
stl1.write_binary(asset('block_binary.stl'))
stl2 = Stl(asset('block_binary.stl'))
assert stl2.stats['type'] == Stl.BINARY
def test_add_facets_increases_len(self):
stl = Stl(asset('block.stl'))
facet_count = len(stl)
stl.add_facets([(((0, 0, 0), (1, 1, 1), (1, 0, 0)), (1, 0, 0))])
assert len(stl) == facet_count + 1
def test_ascii_is_ascii(self):
'''Tests if loaded ASCII file is recognized as ASCII'''
stl = Stl(asset('block.stl'))
assert stl.stats['type'] == Stl.ASCII
def test_number_of_facets(self):
'''Tests if block has 12 facets'''
stl = Stl(asset('block.stl'))
assert stl.stats['number_of_facets'] == 12
