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package graph
import (
"testing"
)
func TestBipartition(t *testing.T) {
g := New(0)
part, ok := Bipartition(g)
if mess, diff := diff(part, []int{}); diff {
t.Errorf("Bipartition: %s", mess)
}
if mess, diff := diff(ok, true); diff {
t.Errorf("Bipartition: %s", mess)
}
g = New(1)
part, ok = Bipartition(g)
if mess, diff := diff(part, []int{0}); diff {
t.Errorf("Bipartition: %s", mess)
}
if mess, diff := diff(ok, true); diff {
t.Errorf("Bipartition: %s", mess)
}
g.Add(0, 0)
part, ok = Bipartition(g)
if mess, diff := diff(part, []int{}); diff {
t.Errorf("Bipartition: %s", mess)
}
if mess, diff := diff(ok, false); diff {
t.Errorf("Bipartition: %s", mess)
}
g = New(2)
part, ok = Bipartition(g)
if mess, diff := diff(part, []int{0, 1}); diff {
t.Errorf("Bipartition: %s", mess)
}
if mess, diff := diff(ok, true); diff {
t.Errorf("Bipartition: %s", mess)
}
g.AddBoth(0, 1)
part, ok = Bipartition(g)
if mess, diff := diff(part, []int{0}); diff {
t.Errorf("Bipartition: %s", mess)
}
if mess, diff := diff(ok, true); diff {
t.Errorf("Bipartition: %s", mess)
}
g.Add(0, 0)
part, ok = Bipartition(g)
if mess, diff := diff(part, []int{}); diff {
t.Errorf("Bipartition: %s", mess)
}
if mess, diff := diff(ok, false); diff {
t.Errorf("Bipartition: %s", mess)
}
g = New(5)
g.Add(0, 1)
g.Add(0, 2)
g.Add(0, 3)
part, ok = Bipartition(g)
if mess, diff := diff(part, []int{0, 4}); diff {
t.Errorf("Bipartition: %s", mess)
}
if mess, diff := diff(ok, true); diff {
t.Errorf("Bipartition: %s", mess)
}
g.Add(2, 3)
part, ok = Bipartition(g)
if mess, diff := diff(part, []int{}); diff {
t.Errorf("Bipartition: %s", mess)
}
if mess, diff := diff(ok, false); diff {
t.Errorf("Bipartition: %s", mess)
}
g = New(5)
g.AddBoth(0, 1)
g.AddBoth(1, 2)
g.AddBoth(2, 3)
g.AddBoth(3, 0)
part, ok = Bipartition(g)
if mess, diff := diff(part, []int{0, 2, 4}); diff {
t.Errorf("Bipartition: %s", mess)
}
if mess, diff := diff(ok, true); diff {
t.Errorf("Bipartition: %s", mess)
}
}
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