Commands executed on Mink elements may fail for several reasons.
ElementWrapper is introduced to automatically handle some of those
situations, like StaleElementReference exceptions and ElementNotVisible
exceptions.
StaleElementReference exceptions are thrown when the command is executed
on an element that is no longer attached to the DOM. When that happens
the ElementWrapper finds again the element and executes the command
again on the new element.
ElementNotVisible exceptions are thrown when the command requires the
element to be visible but the element is not. When that happens the
ElementWrapper waits for the element to be visible before executing the
command again.
These changes are totally compatible with the current acceptance tests.
They just make the tests more robust, but they do not change their
behaviour. In fact, this should minimize some of the sporadic failures
in the acceptance tests caused by their concurrent nature with respect
to the web browser executing the commands.
However, the ElementWrapper is not a silver bullet; it handles the most
common situations, but it does not handle every possible scenario. For
example, the acceptance tests would still fail sporadically if an
element can become staled several times in a row (uncommon) or if it
does not become visible before the timeout expires (which could still
happen in a loaded system even if the components under test work right,
but obviously it is not possible to wait indefinitely for them).
Signed-off-by: Daniel Calviño Sánchez <danxuliu@gmail.com>
Fixes: #4644
Without this patch the filelist would always reload. However since not
all the correct data was set yet it would often:
1. fireoff a propfind to ../webdav/
2. fireoff a propfind to ../webdav/<PATH>
When just opening the file list those are the same so the result is just
fine. However if opening a direct link it means that there is a race
condition on which finishes first.
Signed-off-by: Roeland Jago Douma <roeland@famdouma.nl>
Sometimes, acceptance tests run by Drone fail due to a timeout when
starting the web browser sessions. Increasing the timeout should
minimize the possibility of the failure happening, although it can not
guarantee that it will not happen. A timeout multiplier of 10 was set
just because it looks like a reasonable margin of time, although it is
not based on any hard data.
The timeout multiplier affects too the timeout used when finding
elements. Like when starting a session, increasing the find timeout
simply gives the acceptance tests more time to find the objects before
giving up, so it does not change their behaviour when successful and can
also prevent failures due to default timeouts being too low for a
strained system.
Signed-off-by: Daniel Calviño Sánchez <danxuliu@gmail.com>
Starting a session for an Actor can fail, typically, due to a timeout
connecting with the web browser. Now if the session fails to start it
will be tried again up to "actorTimeoutMultiplier" times in total before
giving up.
Signed-off-by: Daniel Calviño Sánchez <danxuliu@gmail.com>
The timeout passed to the "find" method was multiplied by the
"findTimeoutMultiplier" attribute. However, as "find" used
"findAncestor" and "findAncestor", in turn, used "find" itself the
timeout was increased exponentially for ancestor elements. Now "find"
was split in "find" and "findInternal"; the first method is the public
one and modifies the given parameters as needed and then calls the
second method, private, that performs the find itself.
Signed-off-by: Daniel Calviño Sánchez <danxuliu@gmail.com>
