func TestBitString(t *testing.T) {
for _, test := range []struct {
input []int
want string
}{
{nil, "0"},
{[]int{0}, "1"},
{[]int{0, 4, 5}, "110001"},
{[]int{0, 7, 177}, "1" + strings.Repeat("0", 169) + "10000001"},
{[]int{-3, 0, 4, 5}, "110001.001"},
{[]int{-3}, "0.001"},
} {
var set intsets.Sparse
for _, x := range test.input {
set.Insert(x)
}
if got := set.BitString(); got != test.want {
t.Errorf("BitString(%s) = %s, want %s", set.String(), got, test.want)
}
}
}