Mercurial > repos > shellac > sam_consensus_v3
annotate env/lib/python3.9/site-packages/networkx/tests/test_relabel.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 import pytest |
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2 import networkx as nx |
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3 from networkx.generators.classic import empty_graph |
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4 from networkx.testing import assert_nodes_equal, assert_edges_equal |
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5 |
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6 |
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7 class TestRelabel: |
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8 def test_convert_node_labels_to_integers(self): |
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9 # test that empty graph converts fine for all options |
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10 G = empty_graph() |
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11 H = nx.convert_node_labels_to_integers(G, 100) |
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12 assert list(H.nodes()) == [] |
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13 assert list(H.edges()) == [] |
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14 |
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15 for opt in ["default", "sorted", "increasing degree", "decreasing degree"]: |
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16 G = empty_graph() |
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17 H = nx.convert_node_labels_to_integers(G, 100, ordering=opt) |
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18 assert list(H.nodes()) == [] |
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19 assert list(H.edges()) == [] |
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20 |
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21 G = empty_graph() |
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22 G.add_edges_from([("A", "B"), ("A", "C"), ("B", "C"), ("C", "D")]) |
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23 H = nx.convert_node_labels_to_integers(G) |
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24 degH = (d for n, d in H.degree()) |
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25 degG = (d for n, d in G.degree()) |
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26 assert sorted(degH) == sorted(degG) |
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27 |
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28 H = nx.convert_node_labels_to_integers(G, 1000) |
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29 degH = (d for n, d in H.degree()) |
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30 degG = (d for n, d in G.degree()) |
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31 assert sorted(degH) == sorted(degG) |
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32 assert_nodes_equal(H.nodes(), [1000, 1001, 1002, 1003]) |
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33 |
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34 H = nx.convert_node_labels_to_integers(G, ordering="increasing degree") |
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35 degH = (d for n, d in H.degree()) |
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36 degG = (d for n, d in G.degree()) |
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37 assert sorted(degH) == sorted(degG) |
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38 assert H.degree(0) == 1 |
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39 assert H.degree(1) == 2 |
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40 assert H.degree(2) == 2 |
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41 assert H.degree(3) == 3 |
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42 |
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43 H = nx.convert_node_labels_to_integers(G, ordering="decreasing degree") |
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44 degH = (d for n, d in H.degree()) |
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45 degG = (d for n, d in G.degree()) |
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46 assert sorted(degH) == sorted(degG) |
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47 assert H.degree(0) == 3 |
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48 assert H.degree(1) == 2 |
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49 assert H.degree(2) == 2 |
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50 assert H.degree(3) == 1 |
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51 |
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52 H = nx.convert_node_labels_to_integers( |
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53 G, ordering="increasing degree", label_attribute="label" |
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54 ) |
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55 degH = (d for n, d in H.degree()) |
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56 degG = (d for n, d in G.degree()) |
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57 assert sorted(degH) == sorted(degG) |
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58 assert H.degree(0) == 1 |
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59 assert H.degree(1) == 2 |
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60 assert H.degree(2) == 2 |
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61 assert H.degree(3) == 3 |
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62 |
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63 # check mapping |
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64 assert H.nodes[3]["label"] == "C" |
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65 assert H.nodes[0]["label"] == "D" |
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66 assert H.nodes[1]["label"] == "A" or H.nodes[2]["label"] == "A" |
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67 assert H.nodes[1]["label"] == "B" or H.nodes[2]["label"] == "B" |
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68 |
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69 def test_convert_to_integers2(self): |
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70 G = empty_graph() |
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71 G.add_edges_from([("C", "D"), ("A", "B"), ("A", "C"), ("B", "C")]) |
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72 H = nx.convert_node_labels_to_integers(G, ordering="sorted") |
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73 degH = (d for n, d in H.degree()) |
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74 degG = (d for n, d in G.degree()) |
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75 assert sorted(degH) == sorted(degG) |
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76 |
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77 H = nx.convert_node_labels_to_integers( |
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78 G, ordering="sorted", label_attribute="label" |
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79 ) |
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80 assert H.nodes[0]["label"] == "A" |
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81 assert H.nodes[1]["label"] == "B" |
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82 assert H.nodes[2]["label"] == "C" |
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83 assert H.nodes[3]["label"] == "D" |
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84 |
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85 def test_convert_to_integers_raise(self): |
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86 with pytest.raises(nx.NetworkXError): |
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87 G = nx.Graph() |
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88 H = nx.convert_node_labels_to_integers(G, ordering="increasing age") |
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89 |
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90 def test_relabel_nodes_copy(self): |
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91 G = nx.empty_graph() |
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92 G.add_edges_from([("A", "B"), ("A", "C"), ("B", "C"), ("C", "D")]) |
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93 mapping = {"A": "aardvark", "B": "bear", "C": "cat", "D": "dog"} |
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94 H = nx.relabel_nodes(G, mapping) |
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95 assert_nodes_equal(H.nodes(), ["aardvark", "bear", "cat", "dog"]) |
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96 |
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97 def test_relabel_nodes_function(self): |
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98 G = nx.empty_graph() |
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99 G.add_edges_from([("A", "B"), ("A", "C"), ("B", "C"), ("C", "D")]) |
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100 # function mapping no longer encouraged but works |
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101 |
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102 def mapping(n): |
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103 return ord(n) |
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104 |
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105 H = nx.relabel_nodes(G, mapping) |
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106 assert_nodes_equal(H.nodes(), [65, 66, 67, 68]) |
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107 |
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108 def test_relabel_nodes_graph(self): |
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109 G = nx.Graph([("A", "B"), ("A", "C"), ("B", "C"), ("C", "D")]) |
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110 mapping = {"A": "aardvark", "B": "bear", "C": "cat", "D": "dog"} |
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111 H = nx.relabel_nodes(G, mapping) |
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112 assert_nodes_equal(H.nodes(), ["aardvark", "bear", "cat", "dog"]) |
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113 |
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114 def test_relabel_nodes_orderedgraph(self): |
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115 G = nx.OrderedGraph() |
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116 G.add_nodes_from([1, 2, 3]) |
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117 G.add_edges_from([(1, 3), (2, 3)]) |
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118 mapping = {1: "a", 2: "b", 3: "c"} |
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119 H = nx.relabel_nodes(G, mapping) |
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120 assert list(H.nodes) == ["a", "b", "c"] |
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121 |
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122 def test_relabel_nodes_digraph(self): |
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123 G = nx.DiGraph([("A", "B"), ("A", "C"), ("B", "C"), ("C", "D")]) |
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124 mapping = {"A": "aardvark", "B": "bear", "C": "cat", "D": "dog"} |
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125 H = nx.relabel_nodes(G, mapping, copy=False) |
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126 assert_nodes_equal(H.nodes(), ["aardvark", "bear", "cat", "dog"]) |
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127 |
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128 def test_relabel_nodes_multigraph(self): |
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129 G = nx.MultiGraph([("a", "b"), ("a", "b")]) |
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130 mapping = {"a": "aardvark", "b": "bear"} |
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131 G = nx.relabel_nodes(G, mapping, copy=False) |
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132 assert_nodes_equal(G.nodes(), ["aardvark", "bear"]) |
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133 assert_edges_equal(G.edges(), [("aardvark", "bear"), ("aardvark", "bear")]) |
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134 |
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135 def test_relabel_nodes_multidigraph(self): |
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136 G = nx.MultiDiGraph([("a", "b"), ("a", "b")]) |
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137 mapping = {"a": "aardvark", "b": "bear"} |
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138 G = nx.relabel_nodes(G, mapping, copy=False) |
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139 assert_nodes_equal(G.nodes(), ["aardvark", "bear"]) |
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140 assert_edges_equal(G.edges(), [("aardvark", "bear"), ("aardvark", "bear")]) |
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141 |
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142 def test_relabel_isolated_nodes_to_same(self): |
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143 G = nx.Graph() |
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144 G.add_nodes_from(range(4)) |
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145 mapping = {1: 1} |
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146 H = nx.relabel_nodes(G, mapping, copy=False) |
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147 assert_nodes_equal(H.nodes(), list(range(4))) |
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148 |
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149 def test_relabel_nodes_missing(self): |
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150 with pytest.raises(KeyError): |
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151 G = nx.Graph([("A", "B"), ("A", "C"), ("B", "C"), ("C", "D")]) |
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152 mapping = {0: "aardvark"} |
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153 G = nx.relabel_nodes(G, mapping, copy=False) |
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154 |
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155 def test_relabel_copy_name(self): |
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156 G = nx.Graph() |
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157 H = nx.relabel_nodes(G, {}, copy=True) |
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158 assert H.graph == G.graph |
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159 H = nx.relabel_nodes(G, {}, copy=False) |
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160 assert H.graph == G.graph |
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161 G.name = "first" |
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162 H = nx.relabel_nodes(G, {}, copy=True) |
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163 assert H.graph == G.graph |
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164 H = nx.relabel_nodes(G, {}, copy=False) |
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165 assert H.graph == G.graph |
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166 |
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167 def test_relabel_toposort(self): |
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168 K5 = nx.complete_graph(4) |
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169 G = nx.complete_graph(4) |
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170 G = nx.relabel_nodes(G, {i: i + 1 for i in range(4)}, copy=False) |
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171 nx.is_isomorphic(K5, G) |
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172 G = nx.complete_graph(4) |
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173 G = nx.relabel_nodes(G, {i: i - 1 for i in range(4)}, copy=False) |
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174 nx.is_isomorphic(K5, G) |
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175 |
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176 def test_relabel_selfloop(self): |
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177 G = nx.DiGraph([(1, 1), (1, 2), (2, 3)]) |
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178 G = nx.relabel_nodes(G, {1: "One", 2: "Two", 3: "Three"}, copy=False) |
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179 assert_nodes_equal(G.nodes(), ["One", "Three", "Two"]) |
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180 G = nx.MultiDiGraph([(1, 1), (1, 2), (2, 3)]) |
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181 G = nx.relabel_nodes(G, {1: "One", 2: "Two", 3: "Three"}, copy=False) |
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182 assert_nodes_equal(G.nodes(), ["One", "Three", "Two"]) |
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183 G = nx.MultiDiGraph([(1, 1)]) |
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184 G = nx.relabel_nodes(G, {1: 0}, copy=False) |
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185 assert_nodes_equal(G.nodes(), [0]) |
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186 |
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187 def test_relabel_multidigraph_inout_merge_nodes(self): |
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188 for MG in (nx.MultiGraph, nx.MultiDiGraph): |
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189 for cc in (True, False): |
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190 G = MG([(0, 4), (1, 4), (4, 2), (4, 3)]) |
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191 G[0][4][0]["value"] = "a" |
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192 G[1][4][0]["value"] = "b" |
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193 G[4][2][0]["value"] = "c" |
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194 G[4][3][0]["value"] = "d" |
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195 G.add_edge(0, 4, key="x", value="e") |
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196 G.add_edge(4, 3, key="x", value="f") |
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197 mapping = {0: 9, 1: 9, 2: 9, 3: 9} |
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198 H = nx.relabel_nodes(G, mapping, copy=cc) |
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199 # No ordering on keys enforced |
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200 assert {"value": "a"} in H[9][4].values() |
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201 assert {"value": "b"} in H[9][4].values() |
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202 assert {"value": "c"} in H[4][9].values() |
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203 assert len(H[4][9]) == 3 if G.is_directed() else 6 |
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204 assert {"value": "d"} in H[4][9].values() |
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205 assert {"value": "e"} in H[9][4].values() |
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206 assert {"value": "f"} in H[4][9].values() |
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207 assert len(H[9][4]) == 3 if G.is_directed() else 6 |
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208 |
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209 def test_relabel_multigraph_merge_inplace(self): |
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210 G = nx.MultiGraph([(0, 1), (0, 2), (0, 3), (0, 1), (0, 2), (0, 3)]) |
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211 G[0][1][0]["value"] = "a" |
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212 G[0][2][0]["value"] = "b" |
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213 G[0][3][0]["value"] = "c" |
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214 mapping = {1: 4, 2: 4, 3: 4} |
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215 nx.relabel_nodes(G, mapping, copy=False) |
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216 # No ordering on keys enforced |
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217 assert {"value": "a"} in G[0][4].values() |
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218 assert {"value": "b"} in G[0][4].values() |
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219 assert {"value": "c"} in G[0][4].values() |
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220 |
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221 def test_relabel_multidigraph_merge_inplace(self): |
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222 G = nx.MultiDiGraph([(0, 1), (0, 2), (0, 3)]) |
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223 G[0][1][0]["value"] = "a" |
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224 G[0][2][0]["value"] = "b" |
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225 G[0][3][0]["value"] = "c" |
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226 mapping = {1: 4, 2: 4, 3: 4} |
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227 nx.relabel_nodes(G, mapping, copy=False) |
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228 # No ordering on keys enforced |
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229 assert {"value": "a"} in G[0][4].values() |
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230 assert {"value": "b"} in G[0][4].values() |
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231 assert {"value": "c"} in G[0][4].values() |
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232 |
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233 def test_relabel_multidigraph_inout_copy(self): |
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234 G = nx.MultiDiGraph([(0, 4), (1, 4), (4, 2), (4, 3)]) |
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235 G[0][4][0]["value"] = "a" |
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236 G[1][4][0]["value"] = "b" |
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237 G[4][2][0]["value"] = "c" |
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238 G[4][3][0]["value"] = "d" |
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239 G.add_edge(0, 4, key="x", value="e") |
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240 G.add_edge(4, 3, key="x", value="f") |
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241 mapping = {0: 9, 1: 9, 2: 9, 3: 9} |
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242 H = nx.relabel_nodes(G, mapping, copy=True) |
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243 # No ordering on keys enforced |
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244 assert {"value": "a"} in H[9][4].values() |
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245 assert {"value": "b"} in H[9][4].values() |
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246 assert {"value": "c"} in H[4][9].values() |
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247 assert len(H[4][9]) == 3 |
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248 assert {"value": "d"} in H[4][9].values() |
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249 assert {"value": "e"} in H[9][4].values() |
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250 assert {"value": "f"} in H[4][9].values() |
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251 assert len(H[9][4]) == 3 |
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252 |
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253 def test_relabel_multigraph_merge_copy(self): |
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254 G = nx.MultiGraph([(0, 1), (0, 2), (0, 3)]) |
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255 G[0][1][0]["value"] = "a" |
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256 G[0][2][0]["value"] = "b" |
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257 G[0][3][0]["value"] = "c" |
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258 mapping = {1: 4, 2: 4, 3: 4} |
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259 H = nx.relabel_nodes(G, mapping, copy=True) |
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260 assert {"value": "a"} in H[0][4].values() |
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261 assert {"value": "b"} in H[0][4].values() |
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262 assert {"value": "c"} in H[0][4].values() |
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263 |
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264 def test_relabel_multidigraph_merge_copy(self): |
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265 G = nx.MultiDiGraph([(0, 1), (0, 2), (0, 3)]) |
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266 G[0][1][0]["value"] = "a" |
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267 G[0][2][0]["value"] = "b" |
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268 G[0][3][0]["value"] = "c" |
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269 mapping = {1: 4, 2: 4, 3: 4} |
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270 H = nx.relabel_nodes(G, mapping, copy=True) |
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271 assert {"value": "a"} in H[0][4].values() |
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272 assert {"value": "b"} in H[0][4].values() |
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273 assert {"value": "c"} in H[0][4].values() |
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274 |
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275 def test_relabel_multigraph_nonnumeric_key(self): |
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276 for MG in (nx.MultiGraph, nx.MultiDiGraph): |
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277 for cc in (True, False): |
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278 G = nx.MultiGraph() |
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279 G.add_edge(0, 1, key="I", value="a") |
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280 G.add_edge(0, 2, key="II", value="b") |
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281 G.add_edge(0, 3, key="II", value="c") |
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282 mapping = {1: 4, 2: 4, 3: 4} |
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283 nx.relabel_nodes(G, mapping, copy=False) |
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284 assert {"value": "a"} in G[0][4].values() |
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285 assert {"value": "b"} in G[0][4].values() |
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286 assert {"value": "c"} in G[0][4].values() |
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287 assert 0 in G[0][4] |
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288 assert "I" in G[0][4] |
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289 assert "II" in G[0][4] |