LeetCode/go/implement-queue-using-stacks_test.go

package implement_queue_using_stacks

import (
	"testing"
)

func TestEmpty(t *testing.T) {
	obj := Constructor()

	if !obj.Empty() {
		t.Error("Queue should be empty")
	}
}

func TestBasic(t *testing.T) {
	q := Constructor()

	q.Push(1)
	q.Push(2)

	if q.Peek() != 1 {
		t.Error("1 should be at the front of the queue")
	}
	if q.Pop() != 1 {
		t.Error("1 should've been removed from the queue")
	}

	if q.Empty() {
		t.Error("Queue shouldn't be empty")
	}

	q.Push(3)

	if q.Pop() != 2 {
		t.Error("Queue should've removed 2")
	}

	if q.Empty() {
		t.Error("Queue shouldn't be empty")
	}

	if q.Pop() != 3 {
		t.Error("Queue should've removed 3")
	}

	if !q.Empty() {
		t.Error("Queue should be empty")
	}
}