#!/usr/bin/env python3 from test_more import ok from graph_tools import Graph g = Graph(directed=True) g.add_edge(1, 2) g.add_edge(2, 3) g.add_vertex(4) ok(g.is_reachable(1, 2)) ok(g.is_reachable(2, 3)) ok(g.is_reachable(1, 3)) ok(not g.is_reachable(2, 1)) ok(not g.is_reachable(3, 2)) ok(not g.is_reachable(3, 1))
#!/usr/bin/env python3
import re
from test_more import ok, eq
from graph_tools import Graph
g = Graph(directed=False, multiedged=True)
g.add_vertex(1)
astr = g.export_graph('dot')
ok(astr)
astr = re.sub(r'^//.*\n', '', astr, flags=re.M)
eq(astr, """graph export_dot {
node [color=gray90,style=filled];
"1";
}
""")
g = Graph(directed=False, multiedged=True)
g.add_edge(1, 2)
astr = g.export_graph('dot')
ok(astr)
astr = re.sub(r'^//.*\n', '', astr, flags=re.M)
eq(
astr, """graph export_dot {
node [color=gray90,style=filled];
"1";
"2";
"1" -- "2";
}
""")
