RFR: 8296632: Write a test to verify the content change of TextArea sends TextEvent. [v4]

[Alexey Ivanov]

On Fri, 11 Nov 2022 08:20:55 GMT, ravi gupta <duke at openjdk.org> wrote:

>> This testcase Verify the content changes of a TextArea for the following assertions.
>> 
>> a. TextListener get invoked when the content of a TextArea gets changed.
>> b. TextListener not get invoked during text selection or when Special keys such as Function Keys are pressed.
>> 
>> 
>> Testing:
>> Tested using Mach5(20 times per platform) in macos,linux and windows and got all pass.
>
> ravi gupta has updated the pull request incrementally with one additional commit since the last revision:
> 
>   8296632: Review fixes.

Marked as reviewed by aivanov (Reviewer).

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PR: https://git.openjdk.org/jdk/pull/11052