RFR: 8356803: Test TextLayout/TestControls fails on windows & linux: line and paragraph separator show non-zero advance

[Harshitha Onkar]

On Fri, 30 May 2025 23:40:22 GMT, Daniel Gredler <dgredler at openjdk.org> wrote:

> Per discussion in JBS, adds the following chars to the list of ignorable whitespace chars: U+000B (Vertical Tab), U+000C (Form Feed), U+0085 (Next Line), U+2028 (Line Separator), U+2029 (Paragraph Separator).
> 
> Adds the necessary testing in pre-existing automated test class `test/jdk/java/awt/font/TextLayout/FormatCharAdvanceTest.java`.
> 
> Removes now-unnecessary manual test `test/jdk/java/awt/font/TextLayout/TestControls.java`.
> 
> The `test/jdk/java/awt/font`, `test/jdk/java/awt/print` and `test/jdk/java/awt/Graphics2D/DrawString` tests all pass for me locally on Windows, Linux and macOS.

Tested the fix. It looks good to me.

Not sure of the reason behind @aivanov-jdk suggestion in [JDK-8356812](https://bugs.openjdk.org/browse/JDK-8356812) to keep the manual test alongside the automated test. 

I'm okay with deleting the manual test since the automated one covers all the cases.

-------------

Marked as reviewed by honkar (Reviewer).

PR Review: https://git.openjdk.org/jdk/pull/25560#pullrequestreview-2890009923