93 lines
1.6 KiB
Go
93 lines
1.6 KiB
Go
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package clist
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import (
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"runtime"
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"testing"
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"time"
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)
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func TestSmall(t *testing.T) {
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l := New()
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el1 := l.PushBack(1)
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el2 := l.PushBack(2)
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el3 := l.PushBack(3)
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if l.Len() != 3 {
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t.Error("Expected len 3, got ", l.Len())
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}
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//fmt.Printf("%p %v\n", el1, el1)
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//fmt.Printf("%p %v\n", el2, el2)
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//fmt.Printf("%p %v\n", el3, el3)
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r1 := l.Remove(el1)
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//fmt.Printf("%p %v\n", el1, el1)
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//fmt.Printf("%p %v\n", el2, el2)
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//fmt.Printf("%p %v\n", el3, el3)
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r2 := l.Remove(el2)
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//fmt.Printf("%p %v\n", el1, el1)
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//fmt.Printf("%p %v\n", el2, el2)
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//fmt.Printf("%p %v\n", el3, el3)
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r3 := l.Remove(el3)
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if r1 != 1 {
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t.Error("Expected 1, got ", r1)
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}
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if r2 != 2 {
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t.Error("Expected 2, got ", r2)
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}
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if r3 != 3 {
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t.Error("Expected 3, got ", r3)
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}
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if l.Len() != 0 {
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t.Error("Expected len 0, got ", l.Len())
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}
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}
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/*
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This test is quite hacky because it relies on SetFinalizer
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which isn't guaranteed to run at all.
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*/
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func TestGCFifo(t *testing.T) {
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const numElements = 1000000
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l := New()
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gcCount := 0
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// SetFinalizer doesn't work well with circular structures,
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// so we construct a trivial non-circular structure to
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// track.
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type value struct {
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Int int
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}
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for i := 0; i < numElements; i++ {
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v := new(value)
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v.Int = i
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l.PushBack(v)
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runtime.SetFinalizer(v, func(v *value) {
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gcCount += 1
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})
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}
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for el := l.Front(); el != nil; {
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l.Remove(el)
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//oldEl := el
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el = el.Next()
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//oldEl.DetachPrev()
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//oldEl.DetachNext()
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}
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runtime.GC()
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time.Sleep(time.Second * 3)
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if gcCount != numElements {
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t.Errorf("Expected gcCount to be %v, got %v", numElements,
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gcCount)
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}
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}
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