FileField.set("<file_path>") hangs inconsistently and not guranteed to work all
the time, better workaround/fix included here
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Key: WTR-457
URL: http://jira.openqa.org/browse/WTR-457
Project: Watir
Issue Type: Improvement
Components: Inputs
Affects Versions: 1.6.5, 1.6.2
Environment: Windows XP SP2, (Ruby 1.8.26, Watir 1.6.2) OR (Ruby
1.8.7-p299, Watir 1.6.5)
Reporter: Yogesh Prajapati
Priority: Blocker
Attachments: input_elements.rb
When trying trying to upload a file using file input field, I am using the
WATIR api $ie.file_field(:id, "fileupload").set("#{aFileName.to_s}"), the
sometimes IE seemed to open "file open" dialog, it will set the file path
correctly and close the "file open" dialog box fine and the file input field
get populated correctly with expected file path, but majority of the times the
dialog box will stay open (hanging) and no file name/path set in "File Name"
edit field and nothing happens there after.
I kind of played around changing sleep time in
"input_elements.rb:FileField.set()" method to make it work. What I noticed that
higher sleeping time made the problem worse.
By understanding little bit more about what the "set()" is trying to do, it
seemed like a callback method (after file open dialog box pops up). So as it
says on the line for sleep commands, "it takes some time for popup to appear",
it sounded like that it is too early to make a sleep call i.e. before launching
a separate new process to set the file location in dialog. It is apparent that
the wait (sleep) should rather be done within the new process launched by
making 'system' call instead of putting the enclosing thread to wait even
before starting the new process.
Having said that, by putting the thread to wait before launching new process,
file open dialog box pops up and entire ruby process waits for manually input
(to me it meant broken automated workflow) and that's not acceptable.
So the fix to issue of hanging file open dialog box move line "sleep 1..."
withing system call (i.e. "system %{ruby -e '...." ) just below line 'require
"win32ole"' and may be increase sleep time to 2 or 4 seconds depending up fast
or slow machine.
The fix for me with 4 seconds sleep time worked equally good on both slow
(Pentium4, WinXP SP2) and fast (Core2Duo, WinXP SP2) machines. Please find the
updated "input_elements.rb" attached here.
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