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package glib
import (
"fmt"
"testing"
"unsafe"
)
func TestList_Basics(t *testing.T) {
list := (&List{}).Append(0).Append(1).Append(2)
if list.Length() != 3 {
t.Errorf("Length of list with 3 appended elements must be 3. (Got %v).", list.Length())
}
list = (&List{}).Prepend(0).Prepend(1).Prepend(2)
if list.Length() != 3 {
t.Errorf("Length of list with 3 prepended elements must be 3. (Got %v).", list.Length())
}
list = (&List{}).Insert(0, 0).Insert(1, 0).Insert(2, 0)
if list.Length() != 3 {
t.Errorf("Length of list with 3 inserted elements must be 3. (Got %v).", list.Length())
}
}
func TestList_DataWrapper(t *testing.T) {
list := (&List{}).Append(0).Append(1).Append(2)
list.DataWrapper(func(ptr unsafe.Pointer) interface{} {
return fmt.Sprintf("Value %v", uintptr(ptr))
})
i := 0
for l := list; l != nil; l = l.Next() {
expect := fmt.Sprintf("Value %v", i)
i++
actual, ok := l.Data().(string)
if !ok {
t.Error("DataWrapper must have returned a string!")
}
if actual != expect {
t.Errorf("DataWrapper returned unexpected result. Expected '%v', got '%v'.", expect, actual)
}
}
}
func TestList_Foreach(t *testing.T) {
list := (&List{}).Append(0).Append(1).Append(2)
list.DataWrapper(func(ptr unsafe.Pointer) interface{} {
return int(uintptr(ptr) + 1)
})
sum := 0
list.Foreach(func(item interface{}) {
sum += item.(int)
})
if sum != 6 {
t.Errorf("Foreach resulted into wrong sum. Got %v, expected %v.", sum, 6)
}
}
func TestList_Nth(t *testing.T) {
list := (&List{}).Append(0).Append(1).Append(2)
list.DataWrapper(func(ptr unsafe.Pointer) interface{} {
return int(uintptr(ptr) + 1)
})
for i := uint(0); i < 3; i++ {
nth := list.Nth(i).Data().(int)
nthData := list.NthData(i).(int)
if nth != nthData {
t.Errorf("%v's element didn't match. Nth->Data returned %v; NthData returned %v.", i, nth, nthData)
}
}
}
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