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import unittest
import gudhi
class TestSimplexTree(unittest.TestCase):
def test_insertion(self):
st = gudhi.SimplexTree()
# insert test
self.assertTrue(st.insert([0, 1]))
self.assertTrue(st.insert([0, 1, 2], filtration=4.0))
self.assertEqual(st.num_simplices(), 7)
self.assertEqual(st.num_vertices(), 3)
# find test
self.assertTrue(st.find([0, 1, 2]))
self.assertTrue(st.find([0, 1]))
self.assertTrue(st.find([0, 2]))
self.assertTrue(st.find([0]))
self.assertTrue(st.find([1]))
self.assertTrue(st.find([2]))
self.assertFalse(st.find([3]))
self.assertFalse(st.find([0, 3]))
self.assertFalse(st.find([1, 3]))
self.assertFalse(st.find([2, 3]))
# filtration test
st.set_filtration(5.0)
st.initialize_filtration()
self.assertEqual(st.get_filtration(), 5.0)
self.assertEqual(st.filtration([0, 1, 2]), 4.0)
self.assertEqual(st.filtration([0, 2]), 4.0)
self.assertEqual(st.filtration([1, 2]), 4.0)
self.assertEqual(st.filtration([2]), 4.0)
self.assertEqual(st.filtration([0, 1]), 0.0)
self.assertEqual(st.filtration([0]), 0.0)
self.assertEqual(st.filtration([1]), 0.0)
# skeleton_tree test
self.assertEqual(st.get_skeleton_tree(2),
[([0, 1, 2], 4.0), ([0, 1], 0.0), ([0, 2], 4.0),
([0], 0.0), ([1, 2], 4.0), ([1], 0.0), ([2], 4.0)])
self.assertEqual(st.get_skeleton_tree(1),
[([0, 1], 0.0), ([0, 2], 4.0), ([0], 0.0),
([1, 2], 4.0), ([1], 0.0), ([2], 4.0)])
self.assertEqual(st.get_skeleton_tree(0),
[([0], 0.0), ([1], 0.0), ([2], 4.0)])
# remove_maximal_simplex test
self.assertEqual(st.get_coface_tree([0, 1, 2], 1), [])
st.remove_maximal_simplex([0, 1, 2])
self.assertEqual(st.get_skeleton_tree(2),
[([0, 1], 0.0), ([0, 2], 4.0), ([0], 0.0),
([1, 2], 4.0), ([1], 0.0), ([2], 4.0)])
self.assertFalse(st.find([0, 1, 2]))
self.assertTrue(st.find([0, 1]))
self.assertTrue(st.find([0, 2]))
self.assertTrue(st.find([0]))
self.assertTrue(st.find([1]))
self.assertTrue(st.find([2]))
if __name__ == '__main__':
unittest.main()
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