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import base64
import imghdr

import pytest

from selenium.webdriver.common.by import By


def test_get_screenshot_as_base64(driver, pages):
    pages.load("simpleTest.html")
    result = base64.b64decode(driver.get_screenshot_as_base64())
    assert imghdr.what('', result) == 'png'


def test_get_screenshot_as_png(driver, pages):
    pages.load("simpleTest.html")
    result = driver.get_screenshot_as_png()
    assert imghdr.what('', result) == 'png'


@pytest.mark.xfail_firefox
def test_get_element_screenshot(driver, pages):
    pages.load("simpleTest.html")
    element = driver.find_element(By.ID, "multiline")
    result = base64.b64decode(element.screenshot_as_base64)
    assert imghdr.what('', result) == 'png'
