Mercurial > repos > shellac > sam_consensus_v3
annotate env/lib/python3.9/site-packages/networkx/algorithms/assortativity/tests/test_connectivity.py @ 0:4f3585e2f14b draft default tip
"planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
author | shellac |
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date | Mon, 22 Mar 2021 18:12:50 +0000 |
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1 from itertools import permutations |
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2 |
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3 import pytest |
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4 |
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5 import networkx as nx |
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6 from networkx.testing import almost_equal |
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7 |
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8 |
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9 class TestNeighborConnectivity: |
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10 def test_degree_p4(self): |
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11 G = nx.path_graph(4) |
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12 answer = {1: 2.0, 2: 1.5} |
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13 nd = nx.average_degree_connectivity(G) |
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14 assert nd == answer |
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15 |
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16 D = G.to_directed() |
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17 answer = {2: 2.0, 4: 1.5} |
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18 nd = nx.average_degree_connectivity(D) |
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19 assert nd == answer |
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20 |
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21 answer = {1: 2.0, 2: 1.5} |
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22 D = G.to_directed() |
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23 nd = nx.average_degree_connectivity(D, source="in", target="in") |
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24 assert nd == answer |
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25 |
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26 D = G.to_directed() |
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27 nd = nx.average_degree_connectivity(D, source="in", target="in") |
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28 assert nd == answer |
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29 |
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30 def test_degree_p4_weighted(self): |
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31 G = nx.path_graph(4) |
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32 G[1][2]["weight"] = 4 |
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33 answer = {1: 2.0, 2: 1.8} |
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34 nd = nx.average_degree_connectivity(G, weight="weight") |
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35 assert nd == answer |
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36 answer = {1: 2.0, 2: 1.5} |
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37 nd = nx.average_degree_connectivity(G) |
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38 assert nd == answer |
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39 |
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40 D = G.to_directed() |
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41 answer = {2: 2.0, 4: 1.8} |
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42 nd = nx.average_degree_connectivity(D, weight="weight") |
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43 assert nd == answer |
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44 |
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45 answer = {1: 2.0, 2: 1.8} |
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46 D = G.to_directed() |
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47 nd = nx.average_degree_connectivity( |
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48 D, weight="weight", source="in", target="in" |
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49 ) |
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50 assert nd == answer |
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51 |
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52 D = G.to_directed() |
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53 nd = nx.average_degree_connectivity( |
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54 D, source="in", target="out", weight="weight" |
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55 ) |
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56 assert nd == answer |
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57 |
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58 def test_weight_keyword(self): |
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59 G = nx.path_graph(4) |
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60 G[1][2]["other"] = 4 |
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61 answer = {1: 2.0, 2: 1.8} |
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62 nd = nx.average_degree_connectivity(G, weight="other") |
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63 assert nd == answer |
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64 answer = {1: 2.0, 2: 1.5} |
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65 nd = nx.average_degree_connectivity(G, weight=None) |
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66 assert nd == answer |
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67 |
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68 D = G.to_directed() |
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69 answer = {2: 2.0, 4: 1.8} |
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70 nd = nx.average_degree_connectivity(D, weight="other") |
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71 assert nd == answer |
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72 |
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73 answer = {1: 2.0, 2: 1.8} |
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74 D = G.to_directed() |
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75 nd = nx.average_degree_connectivity(D, weight="other", source="in", target="in") |
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76 assert nd == answer |
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77 |
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78 D = G.to_directed() |
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79 nd = nx.average_degree_connectivity(D, weight="other", source="in", target="in") |
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80 assert nd == answer |
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81 |
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82 def test_degree_barrat(self): |
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83 G = nx.star_graph(5) |
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84 G.add_edges_from([(5, 6), (5, 7), (5, 8), (5, 9)]) |
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85 G[0][5]["weight"] = 5 |
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86 nd = nx.average_degree_connectivity(G)[5] |
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87 assert nd == 1.8 |
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88 nd = nx.average_degree_connectivity(G, weight="weight")[5] |
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89 assert almost_equal(nd, 3.222222, places=5) |
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90 nd = nx.k_nearest_neighbors(G, weight="weight")[5] |
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91 assert almost_equal(nd, 3.222222, places=5) |
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92 |
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93 def test_zero_deg(self): |
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94 G = nx.DiGraph() |
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95 G.add_edge(1, 2) |
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96 G.add_edge(1, 3) |
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97 G.add_edge(1, 4) |
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98 c = nx.average_degree_connectivity(G) |
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99 assert c == {1: 0, 3: 1} |
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100 c = nx.average_degree_connectivity(G, source="in", target="in") |
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101 assert c == {0: 0, 1: 0} |
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102 c = nx.average_degree_connectivity(G, source="in", target="out") |
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103 assert c == {0: 0, 1: 3} |
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104 c = nx.average_degree_connectivity(G, source="in", target="in+out") |
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105 assert c == {0: 0, 1: 3} |
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106 c = nx.average_degree_connectivity(G, source="out", target="out") |
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107 assert c == {0: 0, 3: 0} |
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108 c = nx.average_degree_connectivity(G, source="out", target="in") |
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109 assert c == {0: 0, 3: 1} |
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110 c = nx.average_degree_connectivity(G, source="out", target="in+out") |
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111 assert c == {0: 0, 3: 1} |
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112 |
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113 def test_in_out_weight(self): |
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114 G = nx.DiGraph() |
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115 G.add_edge(1, 2, weight=1) |
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116 G.add_edge(1, 3, weight=1) |
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117 G.add_edge(3, 1, weight=1) |
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118 for s, t in permutations(["in", "out", "in+out"], 2): |
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119 c = nx.average_degree_connectivity(G, source=s, target=t) |
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120 cw = nx.average_degree_connectivity(G, source=s, target=t, weight="weight") |
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121 assert c == cw |
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122 |
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123 def test_invalid_source(self): |
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124 with pytest.raises(ValueError): |
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125 G = nx.DiGraph() |
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126 nx.average_degree_connectivity(G, source="bogus") |
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127 |
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128 def test_invalid_target(self): |
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129 with pytest.raises(ValueError): |
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130 G = nx.DiGraph() |
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131 nx.average_degree_connectivity(G, target="bogus") |
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132 |
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133 def test_single_node(self): |
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134 # TODO Is this really the intended behavior for providing a |
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135 # single node as the argument `nodes`? Shouldn't the function |
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136 # just return the connectivity value itself? |
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137 G = nx.trivial_graph() |
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138 conn = nx.average_degree_connectivity(G, nodes=0) |
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139 assert conn == {0: 0} |