60 lines
2.0 KiB
Python
60 lines
2.0 KiB
Python
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import unittest
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import cadquery as Cq
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from nhf.checks import binary_intersection
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import nhf.parts.joints as joints
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import nhf.parts.handle as handle
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import nhf.parts.metric_threads as metric_threads
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class TestJoints(unittest.TestCase):
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def test_joint_hirth(self):
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j = joints.HirthJoint()
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obj = j.generate()
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self.assertIsInstance(
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obj.val().solids(), Cq.Solid,
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msg="Hirth joint must be in one piece")
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def test_joints_hirth_assembly(self):
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for n_tooth in [16, 20, 24]:
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with self.subTest(n_tooth=n_tooth):
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j = joints.HirthJoint()
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assembly = j.assembly()
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isect = binary_intersection(assembly)
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self.assertLess(isect.Volume(), 1e-6,
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"Hirth joint assembly must not have intersection")
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def test_joints_comma_assembly(self):
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joints.comma_assembly()
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def test_torsion_joint(self):
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j = joints.TorsionJoint()
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assembly = j.rider_track_assembly()
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bbox = assembly.toCompound().BoundingBox()
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self.assertAlmostEqual(bbox.zlen, j.total_height)
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class TestHandle(unittest.TestCase):
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def test_handle_assembly(self):
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h = handle.Handle()
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assembly = h.connector_insertion_assembly()
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bbox = assembly.toCompound().BoundingBox()
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self.assertAlmostEqual(bbox.xlen, h.diam)
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self.assertAlmostEqual(bbox.ylen, h.diam)
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assembly = h.connector_one_side_insertion_assembly()
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bbox = assembly.toCompound().BoundingBox()
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self.assertAlmostEqual(bbox.xlen, h.diam)
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self.assertAlmostEqual(bbox.ylen, h.diam)
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class TestMetricThreads(unittest.TestCase):
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def test_major_radius(self):
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major = 3.0
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t = metric_threads.external_metric_thread(major, 0.5, 4.0, z_start= -0.85, top_lead_in=True)
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bbox = t.val().BoundingBox()
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self.assertAlmostEqual(bbox.xlen, major, places=3)
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self.assertAlmostEqual(bbox.ylen, major, places=3)
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if __name__ == '__main__':
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unittest.main()
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