gods/stacks/linkedliststack/linkedliststack_test.go

76 lines
1.9 KiB
Go

/*
Copyright (c) Emir Pasic, All rights reserved.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 3.0 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library. See the file LICENSE included
with this distribution for more information.
*/
package linkedliststack
import (
"fmt"
"testing"
)
func TestLinkedListStack(t *testing.T) {
stack := New()
if actualValue := stack.Empty(); actualValue != true {
t.Errorf("Got %v expected %v", actualValue, true)
}
// insertions
stack.Push(1)
stack.Push(2)
stack.Push(3)
fmt.Println(stack)
if actualValue := stack.Empty(); actualValue != false {
t.Errorf("Got %v expected %v", actualValue, false)
}
if actualValue := stack.Size(); actualValue != 3 {
t.Errorf("Got %v expected %v", actualValue, 3)
}
if actualValue, ok := stack.Peek(); actualValue != 3 || !ok {
t.Errorf("Got %v expected %v", actualValue, 3)
}
stack.Pop()
if actualValue, ok := stack.Peek(); actualValue != 2 || !ok {
t.Errorf("Got %v expected %v", actualValue, 2)
}
if actualValue, ok := stack.Pop(); actualValue != 2 || !ok {
t.Errorf("Got %v expected %v", actualValue, 2)
}
if actualValue, ok := stack.Pop(); actualValue != 1 || !ok {
t.Errorf("Got %v expected %v", actualValue, 1)
}
if actualValue, ok := stack.Pop(); actualValue != nil || ok {
t.Errorf("Got %v expected %v", actualValue, nil)
}
if actualValue := stack.Empty(); actualValue != true {
t.Errorf("Got %v expected %v", actualValue, true)
}
}