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66 lines
821 B
66 lines
821 B
package main
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import "testing"
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func TestStackPop(t *testing.T) {
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s := Stack{
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values: []int{1, 2, 3},
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}
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i, err := s.Pop()
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if err != nil {
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t.Log(err.Error())
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t.Fail()
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}
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if i != 1 {
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t.Fail()
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}
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if len(s.values) != 2 {
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t.Fail()
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}
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s = Stack{
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values: []int{},
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}
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i, err = s.Pop()
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if err == nil {
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t.Log("expected error")
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t.Fail()
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}
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if i != 0 {
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t.Fail()
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}
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}
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func TestStackPush(t *testing.T) {
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s := Stack{
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values: []int{1, 2, 3},
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}
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s.Push(4)
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if len(s.values) != 4 {
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t.Fail()
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}
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if s.values[0] != 4 || s.values[1] != 1 {
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t.Fail()
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}
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}
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func TestStackPick(t *testing.T) {
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s := Stack{}
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i, err := s.Pick(0)
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if err == nil {
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t.Fail()
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}
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if i != 0 {
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t.Fail()
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}
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s = Stack{
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values: []int{1, 2, 3},
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}
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i, err = s.Pick(2)
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if err != nil {
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t.Fail()
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}
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if i != 3 {
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t.Fail()
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}
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}
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