func TestInsertRemove(t *testing.T) {
s := goset.Set{}
s.Insert(1)
s.Insert("hello")
if !s.Contain(1) {
t.Fatal("number", 1, "not in set, expect exists")
} else {
fmt.Println("1 in set")
}
if !s.Contain("hello") {
t.Fatal("hello not in set, expect exists")
} else {
fmt.Println("hello in set")
}
s.Remove(1)
s.Remove("hello")
if s.Contain(1) {
t.Fatal("number", 1, "exists, expect remove")
}
if s.Contain("hello") {
t.Fatal("hello exists, expect remove")
}
if s.Len() != 0 {
t.Fatal("length of s should be zero!")
}
}
