Anders and Briegel in Python
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test_graph.py 2.5KB

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  1. from abp import GraphState
  2. from abp import clifford
  3. from demograph import demograph
  4. import time
  5. def test_graph_basic():
  6. """ Test that we can construct graphs, delete edges, whatever """
  7. g = demograph()
  8. assert g.ngbh[0] == set([1, 2, 3])
  9. g.del_edge(0, 1)
  10. assert g.ngbh[0] == set([2, 3])
  11. assert g.has_edge(1, 2)
  12. assert not g.has_edge(0, 1)
  13. def test_local_complementation():
  14. """ Test that local complementation works as expected """
  15. g = demograph()
  16. g.local_complementation(0)
  17. assert g.has_edge(0, 1)
  18. assert g.has_edge(0, 2)
  19. assert not g.has_edge(1, 2)
  20. assert g.has_edge(3, 2)
  21. assert g.has_edge(3, 1)
  22. # TODO: test VOP conditions
  23. #def test_remove_vop_simple():
  24. #""" Test that removing VOPs really works """
  25. #g = GraphState(xrange(2))
  26. #print g
  27. #g.remove_vop(0, 1)
  28. #print g
  29. #assert g.vops[0] == clifford.by_name["identity"]
  30. #g.remove_vop(1, 1)
  31. #assert g.vops[1] == clifford.by_name["identity"]
  32. #g.remove_vop(2, 1)
  33. #assert g.vops[2] == clifford.by_name["identity"]
  34. #g.remove_vop(0, 1)
  35. #assert g.vops[0] == clifford.by_name["identity"]
  36. def test_remove_vop():
  37. """ Test that removing VOPs really works """
  38. g = demograph()
  39. g.remove_vop(0, 1)
  40. assert g.vops[0] == clifford.by_name["identity"]
  41. g.remove_vop(1, 1)
  42. assert g.vops[1] == clifford.by_name["identity"]
  43. g.remove_vop(2, 1)
  44. assert g.vops[2] == clifford.by_name["identity"]
  45. g.remove_vop(0, 1)
  46. assert g.vops[0] == clifford.by_name["identity"]
  47. def test_edgelist():
  48. """ Test making edgelists """
  49. g = demograph()
  50. el = g.edgelist()
  51. assert (0, 3) in el
  52. assert (0, 2) in el
  53. assert (100, 200) in el
  54. def test_stress(n = int(1e5)):
  55. """ Testing that making a graph of ten thousand qubits takes less than half a second"""
  56. g = GraphState(range(n+1))
  57. t = time.clock()
  58. for i in xrange(n):
  59. g.add_edge(i, i + 1)
  60. assert time.clock() - t < .5
  61. def test_cz():
  62. """ Test CZ gate """
  63. g = GraphState([0, 1])
  64. g.add_node(0)
  65. g.add_node(1)
  66. g.act_local_rotation(0, clifford.by_name["hadamard"])
  67. g.act_local_rotation(1, clifford.by_name["hadamard"])
  68. g.act_local_rotation(1, clifford.by_name["py"])
  69. assert not g.has_edge(0, 1)
  70. g.act_cz(0, 1)
  71. assert g.has_edge(0, 1)
  72. def test_stabilizer():
  73. """ Test that we can generate stabilizers okay """
  74. g = demograph()
  75. stab = g.to_stabilizer()
  76. #TODO: sux
  77. #assert len(stab.split("\n")) == g.order()