def test_cut_volume(self):
"""Creates a RotateCircleShape with another RotateCircleShape cut out and
checks that the volume is correct."""
outer_shape = RotateCircleShape(points=[(60, 0)], radius=15)
outer_shape_volume = outer_shape.volume
outer_shape.cut = self.test_shape
assert outer_shape.volume == pytest.approx(outer_shape_volume -
self.test_shape.volume)
class TestRotateCircleShape(unittest.TestCase):
def setUp(self):
self.test_shape = RotateCircleShape(points=[(60, 0)], radius=10)
def test_default_parameters(self):
"""Checks that the default parameters of a RotateCircleShape are correct."""
assert self.test_shape.rotation_angle == 360
assert self.test_shape.stp_filename == "RotateCircleShape.stp"
assert self.test_shape.stl_filename == "RotateCircleShape.stl"
assert self.test_shape.azimuth_placement_angle == 0
def test_absolute_shape_volume(self):
"""Creates RotateCircleShapes and checks that their volumes are correct."""
# See Issue #445
# assert self.test_shape.volume == pytest.approx(
# 2 * math.pi * 60 * math.pi * (10**2)
# )
self.test_shape.rotation_angle = 270
assert self.test_shape.volume == pytest.approx(
2 * math.pi * 60 * math.pi * (10**2) * 0.75)
def test_absolute_shape_areas(self):
"""Creates RotateCircleShapes and checks that the areas of each face are
correct."""
# See Issue #445
# assert self.test_shape.area == pytest.approx(
# math.pi * (10 * 2) * math.pi * (60 * 2))
# assert len(self.test_shape.areas) == 1
# assert self.test_shape.areas.count(pytest.approx(
# math.pi * (10 * 2) * math.pi * (60 * 2), rel=0.01)) == 1
self.test_shape.rotation_angle = 180
assert self.test_shape.area == pytest.approx(
((math.pi * (10**2)) * 2) + (math.pi * (10 * 2) * math.pi *
(60 * 2) / 2),
rel=0.01)
assert len(self.test_shape.areas) == 3
assert self.test_shape.areas.count(pytest.approx(math.pi *
(10**2))) == 2
assert self.test_shape.areas.count(
pytest.approx(math.pi * (10 * 2) * math.pi * (60 * 2) / 2,
rel=0.01)) == 1
def test_relative_shape_volume_azimuth_placement_angle(self):
"""Creates two RotateCircleShapes with different azimuth_placement_angles and
checks that their relative volumes are correct."""
self.test_shape.rotation_angle = 10
assert self.test_shape.volume == pytest.approx(
(math.pi * 10**2) * ((2 * math.pi * 60) / 36))
self.test_shape.azimuth_placement_angle = [0, 90, 180, 270]
assert self.test_shape.volume == pytest.approx(
(math.pi * 10**2) * ((2 * math.pi * 60) / 36) * 4)
def test_cut_volume(self):
"""Creates a RotateCircleShape with another RotateCircleShape cut out and
checks that the volume is correct."""
outer_shape = RotateCircleShape(points=[(60, 0)], radius=15)
outer_shape_volume = outer_shape.volume
outer_shape.cut = self.test_shape
assert outer_shape.volume == pytest.approx(outer_shape_volume -
self.test_shape.volume)
def test_export_stp(self):
"""Exports and stp file with mode = solid and wire and checks
that the outputs exist and relative file sizes are correct."""
os.system("rm test_solid.stp test_solid2.stp test_wire.stp")
self.test_shape.export_stp('test_solid.stp', mode='solid')
self.test_shape.export_stp('test_solid2.stp')
self.test_shape.export_stp('test_wire.stp', mode='wire')
assert Path("test_solid.stp").exists() is True
assert Path("test_solid2.stp").exists() is True
assert Path("test_wire.stp").exists() is True
assert Path("test_solid.stp").stat().st_size == \
Path("test_solid2.stp").stat().st_size
# the circle wire file is actually larger than the circle solid file
# assert Path("test_wire.stp").stat().st_size < \
# Path("test_solid2.stp").stat().st_size
os.system("rm test_solid.stp test_solid2.stp test_wire.stp")
def setUp(self):
self.test_shape = RotateCircleShape(points=[(60, 0)], radius=10)