sinProject-Inc/sinpro-dev

import { expect, it } from 'vitest'
import { Background } from './background'
import { BackgroundIndex } from './background_index'

it('Positive Testing', () => {
    const background = Background.from_local_storage()

    expect(background.background_index.index).toBe(0)
    expect(background.background_url).toBe('/src/lib/assets/beach-30.avif')

    const second_background = background.transition_background()
    second_background.transition_background()

    const third_background = Background.from_local_storage()

    expect(third_background.background_index.index).toBe(2)
    expect(third_background.background_url).toBe('/src/lib/assets/cloudy-30.avif')
})

it('Negative Testing', () => {
    const background = new Background(new BackgroundIndex(100))

    expect(background['_background_url']).toBe('/src/lib/assets/beach-30.avif')
})

it('last to first', () => {
    const last_index = Background['_background_urls'].length - 1
    const last_background = new Background(new BackgroundIndex(last_index))

    const first_background = last_background.transition_background()

    expect(first_background.background_index.index).toBe(0)
})