the html part looks like this:
...
<form action="/upload/select-single/" method="post" enctype="multipart/form-data">
<input type="hidden" name="csrfmiddlewaretoken" value="U3Uh3EAYWXaWEiNaWC3zcCQutQe8hGM53u4BTx810o08t1GwOfIJI2ayHCFQFySw">
<p>
<label for="id_file_field">File field:</label>
<input id="id_file_field" name="file_field" type="file" multiple="" required="">
</p>
<input id="submit" type="submit" value="submit">
</form>
...
the selenium test like this:
...
btn_choose_file = self.browser.find_element_by_id("id_file_field")
# write file path to field
# to check that I really selected the field, I tried btn_choose_file.click() -> and it works
btn_choose_file.send_keys('/path/to/file') # -> THIS is the line which seems to cause the problem
# click submit
self.browser.find_element_by_id("submit").click()
...
unfortunately when the test is executed this error is raised
selenium.common.exceptions.WebDriverException: Message: File not found: /path/to/file
this due to the part where the file path is send to the input element with btn_choose_file.send_keys('/path/to/file')
note: the real '/path/to/file' is the following
- /Users/udos/development/trails/processfile/gpx_data/test_data/suite 001 - val poschiavo/Bernina - Le Prese.gpx (the file exists and I copied the path from the IDE)
very odd behaviour. this test was running before, somehow I managed to break it...
any suggestions what the cause could be?
UPDATE
downgrading Firefox from version 55.0.2 to 54.0.1 "fixed" the issue.
see -> https://stackoverflow.com/a/45753912/420953
