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package build
import "testing"
func TestCartesian(t *testing.T) {
res := Empty(2).Cartesian(Grid(1, 2))
exp := "4 [{0 1} {2 3}]"
if mess, diff := diff(res.String(), exp); diff {
t.Errorf("Cartesian %s", mess)
}
Consistent("Cartesian1", t, res)
res = Kn(1).Cartesian(Grid(1, 2))
exp = "2 [{0 1}]"
if mess, diff := diff(res.String(), exp); diff {
t.Errorf("Cartesian %s", mess)
}
Consistent("Cartesian2", t, res)
res = Grid(1, 2).Cartesian(Grid(1, 2))
exp = "4 [{0 1} {0 2} {1 3} {2 3}]"
if mess, diff := diff(res.String(), exp); diff {
t.Errorf("Cartesian %s", mess)
}
Consistent("Cartesian3", t, res)
res = Grid(1, 3).Cartesian(Grid(1, 3))
exp = "9 [{0 1} {0 3} {1 2} {1 4} {2 5} {3 4} {3 6} {4 5} {4 7} {5 8} {6 7} {7 8}]"
if mess, diff := diff(res.String(), exp); diff {
t.Errorf("Cartesian %s", mess)
}
Consistent("Cartesian4", t, res)
res = Kn(2).Cartesian(Grid(1, 2))
exp = "4 [{0 1} {0 2} {1 3} {2 3}]"
if mess, diff := diff(res.String(), exp); diff {
t.Errorf("Cartesian %s", mess)
}
Consistent("Cartesian5", t, res)
for m := 0; m < 4; m++ {
for n := 0; n < 4; n++ {
Consistent("Cartesian6", t, Kn(m).Cartesian(Cycle(n)))
Consistent("Cartesian7", t, Kn(m).Cartesian(Grid(m, m+n)))
Consistent("Cartesian8", t, Grid(m, m+n).Cartesian(Kn(m)))
}
}
}
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