I am trying to access the "canvas" element, sin the screenshot.

I am running the following code:

driver.find_element_by_tag_name('canvas').screenshot("canvas.png")
driver.find_element_by_tag_name('canvas').screenshot_as_png("chess.png")

Neither of the 2 above work, what am I missing?

CodePudding user response：

You were close enough. The <canvas> tag is within the <chess-board> tag.

Solution

Ideally you need to induce WebDriverWait for the visibility_of_element_located() for the <canvas> element and you can use either of the following locator strategies:

• Using TAG_NAME:

  WebDriverWait(driver, 20).until(EC.visibility_of_element_located((By.TAG_NAME, "canvas"))).screenshot_as_png("chess.png")
  

• Using CSS_SELECTOR:

  WebDriverWait(driver, 20).until(EC.visibility_of_element_located((By.CSS_SELECTOR, "chess-board > canvas"))).screenshot_as_png("chess.png")
  

• Using XPATH:

  WebDriverWait(driver, 20).until(EC.visibility_of_element_located((By.XPATH, "//chess-board/canvas"))).screenshot_as_png("chess.png")
  

• Note : You have to add the following imports :

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

CodePudding user response：

1)Create a class. Implement TestNG 'ITestListener'. 2)Call the method 'onTestFailure'. 3)Add the code to take a screenshot with this method. 4)Get the Test method name and take a screenshot with the test name. Then place it in the desired destination folder.