Mercurial > repos > shellac > sam_consensus_v3
annotate env/lib/python3.9/site-packages/networkx/algorithms/tests/test_distance_regular.py @ 0:4f3585e2f14b draft default tip
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author | shellac |
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date | Mon, 22 Mar 2021 18:12:50 +0000 |
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1 import networkx as nx |
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2 from networkx import is_strongly_regular |
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3 |
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4 |
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5 class TestDistanceRegular: |
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6 def test_is_distance_regular(self): |
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7 assert nx.is_distance_regular(nx.icosahedral_graph()) |
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8 assert nx.is_distance_regular(nx.petersen_graph()) |
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9 assert nx.is_distance_regular(nx.cubical_graph()) |
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10 assert nx.is_distance_regular(nx.complete_bipartite_graph(3, 3)) |
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11 assert nx.is_distance_regular(nx.tetrahedral_graph()) |
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12 assert nx.is_distance_regular(nx.dodecahedral_graph()) |
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13 assert nx.is_distance_regular(nx.pappus_graph()) |
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14 assert nx.is_distance_regular(nx.heawood_graph()) |
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15 assert nx.is_distance_regular(nx.cycle_graph(3)) |
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16 # no distance regular |
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17 assert not nx.is_distance_regular(nx.path_graph(4)) |
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18 |
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19 def test_not_connected(self): |
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20 G = nx.cycle_graph(4) |
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21 nx.add_cycle(G, [5, 6, 7]) |
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22 assert not nx.is_distance_regular(G) |
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23 |
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24 def test_global_parameters(self): |
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25 b, c = nx.intersection_array(nx.cycle_graph(5)) |
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26 g = nx.global_parameters(b, c) |
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27 assert list(g) == [(0, 0, 2), (1, 0, 1), (1, 1, 0)] |
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28 b, c = nx.intersection_array(nx.cycle_graph(3)) |
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29 g = nx.global_parameters(b, c) |
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30 assert list(g) == [(0, 0, 2), (1, 1, 0)] |
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31 |
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32 def test_intersection_array(self): |
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33 b, c = nx.intersection_array(nx.cycle_graph(5)) |
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34 assert b == [2, 1] |
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35 assert c == [1, 1] |
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36 b, c = nx.intersection_array(nx.dodecahedral_graph()) |
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37 assert b == [3, 2, 1, 1, 1] |
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38 assert c == [1, 1, 1, 2, 3] |
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39 b, c = nx.intersection_array(nx.icosahedral_graph()) |
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40 assert b == [5, 2, 1] |
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41 assert c == [1, 2, 5] |
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42 |
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43 |
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44 class TestStronglyRegular: |
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45 """Unit tests for the :func:`~networkx.is_strongly_regular` |
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46 function. |
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47 |
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48 """ |
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49 |
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50 def test_cycle_graph(self): |
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51 """Tests that the cycle graph on five vertices is strongly |
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52 regular. |
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53 |
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54 """ |
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55 G = nx.cycle_graph(5) |
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56 assert is_strongly_regular(G) |
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57 |
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58 def test_petersen_graph(self): |
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59 """Tests that the Petersen graph is strongly regular.""" |
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60 G = nx.petersen_graph() |
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61 assert is_strongly_regular(G) |
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62 |
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63 def test_path_graph(self): |
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64 """Tests that the path graph is not strongly regular.""" |
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65 G = nx.path_graph(4) |
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66 assert not is_strongly_regular(G) |