CODEWITHSUNDEEP
pythonpython-2.7selenium
mike
mike

Reputation: 117

Assert an Element is NOT present python Selenium

I am using selenium python and looking for a way to assert that an element is not present, something like:

assert not driver.find_element_by_xpath("locator").text== "Element Text"

Upvotes: 4

Views: 18485

Answers (4)

undetected Selenium
undetected Selenium

Reputation: 193308

To assert that an element is not present you can use either of the following approaches:

  • Using assert and invisibility_of_element_located(locator) which will assert that an element is either invisible or not present on the DOM.

    assert WebDriverWait(driver, 20).until(EC.invisibility_of_element_located((By.XPATH, "xpath_Element_Text_element")))

  • Using assert not and visibility_of_element_located(locator) which will assert that an element is not present on the DOM of a page and not visible.

    assert not WebDriverWait(driver, 20).until(EC.visibility_of_element_located((By.XPATH, "xpath_Element_Text_element")))

Upvotes: 3

Carl Brubaker
Carl Brubaker

Reputation: 1655

If you are trying to check that an element does not exist, the easiest way to do that is using a with statement.

from selenium.common.exceptions import NoSuchElementException

def test_element_does_not_exist(self):
    with self.assertRaises(NoSuchElementException):
        browser.find_element_by_xpath("locator")

Upvotes: 3

Andersson
Andersson

Reputation: 52685

You can use below:

assert not len(driver.find_elements_by_xpath("locator"))

This should pass assertion if none of elements that match your locator were found or AssertionError if at least 1 found

Note, that if element is generated dynamically by some JavaScript it could appear in DOM after assertion executed. In this case you might implement ExplicitWait :

from selenium.webdriver.common.by import By from selenium.webdriver.support.ui import WebDriverWait from selenium.webdriver.support import expected_conditions as EC

try:
    WebDriverWait(driver, 10).until(EC.presence_of_element_located((By.XPATH, "locator")))
    not_found = False
except:
    not_found = True

assert not_found

In this case we'll get AssertionError if element appeared in DOM within 10 seconds

Upvotes: 5

admirableadmin
admirableadmin

Reputation: 2759

assuming you are using py.test for your check in assert and you want to verify the message of an expected exception:

import pytest

def test_foo():
    with pytest.raises(Exception) as excinfo:
        x = driver.find_element_by_xpath("locator").text
    assert excinfo.value.message == 'Unable to locate element'

Upvotes: 4

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