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arraystack_test.go
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84 lines (69 loc) · 1.35 KB
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package stack
import (
// "fmt"
"testing"
"errors"
)
func TestArrayStack_Top(t *testing.T) {
stack := NewArrayStack()
if !stack.IsEmpty() {
t.Fatal(errors.New("check empty error"))
}
var url = "http://www.google.com/"
stack.Push(url)
if stack.IsEmpty() {
t.Fatal(errors.New("check empty error"))
}
v := stack.Top()
if v != url {
t.Fatal(errors.New("top method error"))
}
v = stack.Top()
if v != url {
t.Fatal(errors.New("top method error"))
}
stack.Print()
}
func TestArrayStack_Pop(t *testing.T) {
stack := NewArrayStack()
var url1 = "http://www.google.com/"
stack.Push(url1)
var url2 = "https://www.bing.com/"
stack.Push(url2)
if stack.IsEmpty() {
t.Fatal(errors.New("check empty error after push"))
}
v := stack.Pop()
t.Log(v)
if url2 != v {
t.Fatal("pop error 1")
}
v = stack.Pop()
t.Log(v)
if url1 != v {
t.Fatal("pop error 2")
}
if !stack.IsEmpty() {
t.Fatal("check empty error after pop")
}
var url3 = "http://www.baidu33.com"
stack.Push(url3)
v = stack.Pop()
if url3 != v {
t.Fatal("pop error 3")
}
stack.Print()
}
func TestArrayStack_Flush(t *testing.T) {
stack := NewArrayStack()
ary := []interface{} {"google.com", "bing.com", "baidu.com"}
for _, v := range ary {
stack.Push(v)
}
stack.Print()
stack.Flush()
if !stack.IsEmpty() {
t.Fatal("check empty error after flush")
}
stack.Print()
}