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package immutable
import (
"testing"
)
func TestSetsPut(t *testing.T) {
s := NewSet[string](nil)
s2 := s.Add("1").Add("1")
s2.Add("2")
if s.Len() != 0 {
t.Fatalf("Unexpected mutation of set")
}
if s.Has("1") {
t.Fatalf("Unexpected set element")
}
if s2.Len() != 1 {
t.Fatalf("Unexpected non-mutation of set")
}
if !s2.Has("1") {
t.Fatalf("Set element missing")
}
itr := s2.Iterator()
counter := 0
for !itr.Done() {
i, v := itr.Next()
t.Log(i, v)
counter++
}
if counter != 1 {
t.Fatalf("iterator wrong length")
}
}
func TestSetsDelete(t *testing.T) {
s := NewSet[string](nil)
s2 := s.Add("1")
s3 := s.Delete("1")
if s2.Len() != 1 {
t.Fatalf("Unexpected non-mutation of set")
}
if !s2.Has("1") {
t.Fatalf("Set element missing")
}
if s3.Len() != 0 {
t.Fatalf("Unexpected set length after delete")
}
if s3.Has("1") {
t.Fatalf("Unexpected set element after delete")
}
}
func TestSortedSetsPut(t *testing.T) {
s := NewSortedSet[string](nil)
s2 := s.Add("1").Add("1").Add("0")
if s.Len() != 0 {
t.Fatalf("Unexpected mutation of set")
}
if s.Has("1") {
t.Fatalf("Unexpected set element")
}
if s2.Len() != 2 {
t.Fatalf("Unexpected non-mutation of set")
}
if !s2.Has("1") {
t.Fatalf("Set element missing")
}
itr := s2.Iterator()
counter := 0
for !itr.Done() {
i, v := itr.Next()
t.Log(i, v)
if counter == 0 && i != "0" {
t.Fatalf("sort did not work for first el")
}
if counter == 1 && i != "1" {
t.Fatalf("sort did not work for second el")
}
counter++
}
if counter != 2 {
t.Fatalf("iterator wrong length")
}
}
func TestSortedSetsDelete(t *testing.T) {
s := NewSortedSet[string](nil)
s2 := s.Add("1")
s3 := s.Delete("1")
if s2.Len() != 1 {
t.Fatalf("Unexpected non-mutation of set")
}
if !s2.Has("1") {
t.Fatalf("Set element missing")
}
if s3.Len() != 0 {
t.Fatalf("Unexpected set length after delete")
}
if s3.Has("1") {
t.Fatalf("Unexpected set element after delete")
}
}
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