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"""!
@brief Unit-tests for DSATUR algorithm.
@authors Andrei Novikov (pyclustering@yandex.ru)
@date 2014-2020
@copyright BSD-3-Clause
"""
import unittest;
from pyclustering.gcolor.dsatur import dsatur;
from pyclustering.utils.graph import read_graph;
from pyclustering.samples.definitions import GRAPH_SIMPLE_SAMPLES;
class Test(unittest.TestCase):
def templateTestColoring(self, filename):
graph = read_graph(filename);
dsatur_intance = dsatur(graph.data);
dsatur_intance.process();
map_coloring = dsatur_intance.get_colors();
# Check number of colors
assigned_colors = set(map_coloring);
# Check validity of color numbers
for color_number in range(1, len(assigned_colors) + 1, 1):
assert color_number in assigned_colors;
# Check validity of colors
for index_node in range(len(graph.data)):
color_neighbors = [ map_coloring[index] for index in range(len(graph.data[index_node])) if graph.data[index_node][index] != 0 and index_node != index];
#print(index_node, map_coloring[index_node], color_neighbors, assigned_colors, map_coloring, "\n\n");
assert map_coloring[index_node] not in color_neighbors;
def testColoringFull1(self):
self.templateTestColoring(GRAPH_SIMPLE_SAMPLES.GRAPH_FULL1);
def testColoringBrokenCircle1(self):
self.templateTestColoring(GRAPH_SIMPLE_SAMPLES.GRAPH_BROKEN_CIRCLE1);
def testColoringOneLine(self):
self.templateTestColoring(GRAPH_SIMPLE_SAMPLES.GRAPH_ONE_LINE);
def testColoringOneCircle1(self):
self.templateTestColoring(GRAPH_SIMPLE_SAMPLES.GRAPH_ONE_CIRCLE1);
def testColoringFivePointedStar(self):
self.templateTestColoring(GRAPH_SIMPLE_SAMPLES.GRAPH_FIVE_POINTED_STAR);
def testColoringVerification(self):
self.templateTestColoring(GRAPH_SIMPLE_SAMPLES.GRAPH_BROKEN_CIRCLE1);
self.templateTestColoring(GRAPH_SIMPLE_SAMPLES.GRAPH_BROKEN_CIRCLE2);
self.templateTestColoring(GRAPH_SIMPLE_SAMPLES.GRAPH_FIVE_POINTED_FRAME_STAR);
self.templateTestColoring(GRAPH_SIMPLE_SAMPLES.GRAPH_FIVE_POINTED_STAR);
self.templateTestColoring(GRAPH_SIMPLE_SAMPLES.GRAPH_FULL1);
self.templateTestColoring(GRAPH_SIMPLE_SAMPLES.GRAPH_FULL2);
self.templateTestColoring(GRAPH_SIMPLE_SAMPLES.GRAPH_ONE_CIRCLE1);
self.templateTestColoring(GRAPH_SIMPLE_SAMPLES.GRAPH_ONE_CIRCLE2);
self.templateTestColoring(GRAPH_SIMPLE_SAMPLES.GRAPH_ONE_CIRCLE3);
self.templateTestColoring(GRAPH_SIMPLE_SAMPLES.GRAPH_ONE_CROSSROAD);
self.templateTestColoring(GRAPH_SIMPLE_SAMPLES.GRAPH_ONE_LINE);
self.templateTestColoring(GRAPH_SIMPLE_SAMPLES.GRAPH_SIMPLE1);
self.templateTestColoring(GRAPH_SIMPLE_SAMPLES.GRAPH_TWO_CROSSROADS);
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