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|
package set
import (
"reflect"
"strings"
"testing"
)
func TestSetNonTS_NewNonTS_parameters(t *testing.T) {
s := NewNonTS("string", "another_string", 1, 3.14)
if s.Size() != 4 {
t.Error("NewNonTS: calling with parameters should create a set with size of four")
}
}
func TestSetNonTS_Add(t *testing.T) {
s := NewNonTS()
s.Add(1)
s.Add(2)
s.Add(2) // duplicate
s.Add("fatih")
s.Add("zeynep")
s.Add("zeynep") // another duplicate
if s.Size() != 4 {
t.Error("Add: items are not unique. The set size should be four")
}
if !s.Has(1, 2, "fatih", "zeynep") {
t.Error("Add: added items are not availabile in the set.")
}
}
func TestSetNonTS_Add_multiple(t *testing.T) {
s := NewNonTS()
s.Add("ankara", "san francisco", 3.14)
if s.Size() != 3 {
t.Error("Add: items are not unique. The set size should be three")
}
if !s.Has("ankara", "san francisco", 3.14) {
t.Error("Add: added items are not availabile in the set.")
}
}
func TestSetNonTS_Remove(t *testing.T) {
s := NewNonTS()
s.Add(1)
s.Add(2)
s.Add("fatih")
s.Remove(1)
if s.Size() != 2 {
t.Error("Remove: set size should be two after removing")
}
s.Remove(1)
if s.Size() != 2 {
t.Error("Remove: set size should be not change after trying to remove a non-existing item")
}
s.Remove(2)
s.Remove("fatih")
if s.Size() != 0 {
t.Error("Remove: set size should be zero")
}
s.Remove("fatih") // try to remove something from a zero length set
}
func TestSetNonTS_Remove_multiple(t *testing.T) {
s := NewNonTS()
s.Add("ankara", "san francisco", 3.14, "istanbul")
s.Remove("ankara", "san francisco", 3.14)
if s.Size() != 1 {
t.Error("Remove: items are not unique. The set size should be four")
}
if !s.Has("istanbul") {
t.Error("Add: added items are not availabile in the set.")
}
}
func TestSetNonTS_Pop(t *testing.T) {
s := NewNonTS()
s.Add(1)
s.Add(2)
s.Add("fatih")
a := s.Pop()
if s.Size() != 2 {
t.Error("Pop: set size should be two after popping out")
}
if s.Has(a) {
t.Error("Pop: returned item should not exist")
}
s.Pop()
s.Pop()
b := s.Pop()
if b != nil {
t.Error("Pop: should return nil because set is empty")
}
s.Pop() // try to remove something from a zero length set
}
func TestSetNonTS_Has(t *testing.T) {
s := NewNonTS("1", "2", "3", "4")
if !s.Has("1") {
t.Error("Has: the item 1 exist, but 'Has' is returning false")
}
if !s.Has("1", "2", "3", "4") {
t.Error("Has: the items all exist, but 'Has' is returning false")
}
}
func TestSetNonTS_Clear(t *testing.T) {
s := NewNonTS()
s.Add(1)
s.Add("istanbul")
s.Add("san francisco")
s.Clear()
if s.Size() != 0 {
t.Error("Clear: set size should be zero")
}
}
func TestSetNonTS_IsEmpty(t *testing.T) {
s := NewNonTS()
empty := s.IsEmpty()
if !empty {
t.Error("IsEmpty: set is empty, it should be true")
}
s.Add(2)
s.Add(3)
notEmpty := s.IsEmpty()
if notEmpty {
t.Error("IsEmpty: set is filled, it should be false")
}
}
func TestSetNonTS_IsEqual(t *testing.T) {
s := NewNonTS("1", "2", "3")
u := NewNonTS("1", "2", "3")
ok := s.IsEqual(u)
if !ok {
t.Error("IsEqual: set s and t are equal. However it returns false")
}
// same size, different content
a := NewNonTS("1", "2", "3")
b := NewNonTS("4", "5", "6")
ok = a.IsEqual(b)
if ok {
t.Error("IsEqual: set a and b are now equal (1). However it returns true")
}
// different size, similar content
a = NewNonTS("1", "2", "3")
b = NewNonTS("1", "2", "3", "4")
ok = a.IsEqual(b)
if ok {
t.Error("IsEqual: set s and t are now equal (2). However it returns true")
}
}
func TestSetNonTS_IsSubset(t *testing.T) {
s := NewNonTS("1", "2", "3", "4")
u := NewNonTS("1", "2", "3")
ok := s.IsSubset(u)
if !ok {
t.Error("IsSubset: u is a subset of s. However it returns false")
}
ok = u.IsSubset(s)
if ok {
t.Error("IsSubset: s is not a subset of u. However it returns true")
}
}
func TestSetNonTS_IsSuperset(t *testing.T) {
s := NewNonTS("1", "2", "3", "4")
u := NewNonTS("1", "2", "3")
ok := u.IsSuperset(s)
if !ok {
t.Error("IsSuperset: s is a superset of u. However it returns false")
}
ok = s.IsSuperset(u)
if ok {
t.Error("IsSuperset: u is not a superset of u. However it returns true")
}
}
func TestSetNonTS_String(t *testing.T) {
s := NewNonTS()
if s.String() != "[]" {
t.Errorf("String: output is not what is excepted '%s'", s.String())
}
s.Add("1", "2", "3", "4")
if !strings.HasPrefix(s.String(), "[") {
t.Error("String: output should begin with a square bracket")
}
if !strings.HasSuffix(s.String(), "]") {
t.Error("String: output should end with a square bracket")
}
}
func TestSetNonTS_List(t *testing.T) {
s := NewNonTS("1", "2", "3", "4")
// this returns a slice of interface{}
if len(s.List()) != 4 {
t.Error("List: slice size should be four.")
}
for _, item := range s.List() {
r := reflect.TypeOf(item)
if r.Kind().String() != "string" {
t.Error("List: slice item should be a string")
}
}
}
func TestSetNonTS_Copy(t *testing.T) {
s := NewNonTS("1", "2", "3", "4")
r := s.Copy()
if !s.IsEqual(r) {
t.Error("Copy: set s and r are not equal")
}
}
func TestSetNonTS_Merge(t *testing.T) {
s := NewNonTS("1", "2", "3")
r := NewNonTS("3", "4", "5")
s.Merge(r)
if s.Size() != 5 {
t.Error("Merge: the set doesn't have all items in it.")
}
if !s.Has("1", "2", "3", "4", "5") {
t.Error("Merge: merged items are not availabile in the set.")
}
}
func TestSetNonTS_Separate(t *testing.T) {
s := NewNonTS("1", "2", "3")
r := NewNonTS("3", "5")
s.Separate(r)
if s.Size() != 2 {
t.Error("Separate: the set doesn't have all items in it.")
}
if !s.Has("1", "2") {
t.Error("Separate: items after separation are not availabile in the set.")
}
}
|
