RFR: 8284077: Create an automated test for JDK-4170173 [v2]

[Sergey Bylokhov]

On Tue, 12 Apr 2022 06:09:35 GMT, Srinivas Mandalika <smandalika at openjdk.org> wrote:

>> Create an automated test for [JDK-4170173](https://bugs.openjdk.java.net/browse/JDK-4170173)
>> 
>> Issue
>> JTextComponent.AccessibleJTextComponent.getAfterIndex(int part, int index) works incorrectly, when 'part' parameter is AccessibleText.WORD.
>> It returns a space (" ") instead of the correct word.
>> 
>> The test verifies the fix for this behavior by checking the getAfterIndex for AccessibleText.CHARACTER,AccessibleText.WORD,AccessibleText.SENTENCE for the components JTextField, JTextArea, JEditorPane.
>> 
>> While working on this test case there was a related bug relevant to this [JDK-4170174](https://bugs.openjdk.java.net/browse/JDK-4170174) 
>> This is marked as duplicate, addressess a similar issue.
>> It indicates that JTextComponent.AccessibleJTextComponent.getBeforeIndex(int part, int index) works incorrectly, when part parameter is AccessibleText.WORD.
>> It returns a space (" ") instead of correct word.
>> 
>> Hence an additional test was added for this, for verifying the behavior of getBeforeIndex.
>> AccessibleText.CHARACTER,AccessibleText.WORD,AccessibleText.SENTENCE for the components JTextField, JTextArea, JEditorPane.
>> 
>> The two tests have multiple distinct assertions. For this reason, as well as for maintainability, the two were not clubbed into a single test.
>> However, the two tests are still similar in the functional flow of the code and the functionality they are testing as well - hence they have been clubbed into a single review.
>> This review is for migrating tests from a closed test suite to open.
>> 
>> Testing:
>> The tests ran successfully on Mach5 with multiple runs (30) on windows-x64, linux-x64 and macos-x64.
>
> Srinivas Mandalika has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Review Comments Fixed: Simplied test

Marked as reviewed by serb (Reviewer).

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PR: https://git.openjdk.java.net/jdk/pull/8138