Django Selenium test onclick not calling function

Question

In a Selenium test of my homepage I ran into the following problem:

I have a number of buttons on the page. When clicking one of them a selections list is populated with a number of options via a javascript function. After clicking one of the buttons the selection list can look like this:

<select id="selectionList" name="List1" size="10" style="width:100%;">
<option style="color:#0275d8">Item Type 1</option>
<option onclick="onSelection()" id="Item_1">Item 1</option>
<option onclick="onSelection()" id="Item_2">Item 2</option>
<option onclick="onSelection()" id="Item_3">Item 3</option>
<option onclick="onSelection()" id="Item_4">Item 4</option>
<option onclick="onSelection()" id="Item_5">Item 5</option>
<option onclick="onSelection()" id="Item_6">Item 6</option>
<option style="color:#0275d8">Item Type 2</option>
<option onclick="onSelection()" id="Item_7">Item 7</option>
<option onclick="onSelection()" id="Item_8">Item 8</option>
<option onclick="onSelection()" id="Item_9">Item 9</option>
<option onclick="onSelection()" id="Item_10">Item 10</option>
</select>

In my test I used the following to click on one of the items.

WebDriverWait(self.browser, 60).until(EC.element_to_be_clickable((By.XPATH, "//*[@id='Item_1']"))).click()

I do see that item 1 gets highlighted but the onSelection() function is not called.

I also tried this

time.sleep(10)
self.browser.find_element_by_id("Item_1").click()

Again item 1 gets highlighted but the function onSelection() is not called.

Any idea of how to solved this issue?

Answer 1

this seems to be a known problem

https://github.com/seleniumhq/selenium-google-code-issue-archive/issues/2556

the issue is marked closed but seemingly only because the original reporter abandoned the issue and/or because it is an imported bug reported from an older issue tracker.

there is one reported workaround in the discussion

driver.action.click_and_hold(element).perform
sleep(1)
driver.action.release.perform

i think the code is informal because AFAIK there is no driver.action. instead you have to do actions = ActionChains(driver).

see here for more information: https://www.tutorialspoint.com/what-are-actionchains-class-in-selenium-with-python

Answer 2

The element is a html-select element so you need to use the Select() class.

To select the <option> with text as Item 1 using Selenium you need to induce WebDriverWait for the element_to_be_clickable() and you can use either of the following Locator Strategies:

• Using CSS_SELECTOR:

  select = Select(WebDriverWait(self.browser, 20).until(EC.element_to_be_clickable((By.CSS_SELECTOR, "select#selectionList[name='List1']"))))
  select.select_by_visible_text('Item 1')
  

• Using XPATH:

  select = Select(WebDriverWait(self.browser, 20).until(EC.element_to_be_clickable((By.XPATH, "//select[@id='selectionList' and @name='List1']"))))
  select.select_by_visible_text('Item 1')
  

• Note : You have to add the following imports :

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

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References

You can find a couple of relevant discussions in:

• How to select an option from the dropdown menu using Selenium and Python