package utils

import (
	"github.com/stretchr/testify/assert"
	"testing"
)

func Test_DefaultSequenceNumberGenerator(t *testing.T) {

	t.Run("next", func(t *testing.T) {
		var sequenceGenerator = NewDefaultSequenceNumberGenerator()
		assert.Equal(t, uint64(0), (*sequenceGenerator).Next())
	})

	t.Run("revert", func(t *testing.T) {
		var sequenceGenerator = NewDefaultSequenceNumberGenerator()
		assert.Equal(t, uint64(0), (*sequenceGenerator).Next())
		assert.Equal(t, uint64(1), (*sequenceGenerator).Next())
		(*sequenceGenerator).Revert()
		assert.Equal(t, uint64(1), (*sequenceGenerator).Next())
	})
}