Function check_errors

tests/integration/devtools/test_callback_validation.py:23–68

(dash_duo, specs)

def check_errors(dash_duo, specs):
    # Order-agnostic check of all the errors shown.
    # This is not fully general - despite the selectors below, it only applies
    # to front-end errors with no back-end errors in the list.
    cnt = len(specs)
    dash_duo.wait_for_text_to_equal(dash_duo.devtools_error_count_locator, str(cnt))

    found = []
    for i in range(cnt):
        msg = dash_duo.find_elements(".dash-fe-error__title")[i].text
        dash_duo.find_elements(".test-devtools-error-toggle")[i].click()
        dash_duo.wait_for_element(".dash-backend-error,.dash-fe-error__info")
        has_BE = dash_duo.driver.execute_script(
            "return document.querySelectorAll('.dash-backend-error').length"
        )
        txt_selector = ".dash-backend-error" if has_BE else ".dash-fe-error__info"
        txt = dash_duo.wait_for_element(txt_selector).text
        dash_duo.find_elements(".test-devtools-error-toggle")[i].click()
        dash_duo.wait_for_no_elements(".dash-backend-error")
        found.append((msg, txt))

    orig_found = found[:]

    for i, (message, snippets) in enumerate(specs):
        for j, (msg, txt) in enumerate(found):
            if msg == message and all(snip in txt for snip in snippets):
                print(j)
                found.pop(j)
                break
        else:
            raise AssertionError(
                (
                    "error {} ({}) not found with text:\n"
                    "  {}\nThe found messages were:\n---\n{}"
                ).format(
                    i,
                    message,
                    "\n  ".join(snippets),
                    "\n---\n".join(
                        "{}\n{}".format(msg, txt) for msg, txt in orig_found
                    ),
                )
            )

    # ensure the errors didn't leave items in the pendingCallbacks queue
    assert dash_duo.driver.execute_script("return document.title") == "Dash"


def test_dvcv001_blank(dash_duo):