[flutter_markdown] Added sizedImageBuilder to Markdown widget

[M97Chahboun]

• Adds sizedImageBuilder to Markdown widget.

Pre-launch Checklist

• I read the Contributor Guide and followed the process outlined there for submitting PRs.
• I read the Tree Hygiene wiki page, which explains my responsibilities.
• I read and followed the relevant style guides and ran the auto-formatter. (Unlike the flutter/flutter repo, the flutter/packages repo does use dart format.)
• I signed the CLA.
• The title of the PR starts with the name of the package surrounded by square brackets, e.g. [shared_preferences]
• I linked to at least one issue that this PR fixes in the description above.
• I updated pubspec.yaml with an appropriate new version according to the pub versioning philosophy, or this PR is exempt from version changes.
• I updated CHANGELOG.md to add a description of the change, following repository CHANGELOG style.
• I updated/added relevant documentation (doc comments with ///).
• I added new tests to check the change I am making, or this PR is test-exempt.
• All existing and new tests are passing.

[domesticmouse]

I'm curious how image height and width are parsed from the markdown.

[M97Chahboun]

@domesticmouse
If you means how markdown parse the h & w of image
check this line
parsed by get height and width from this format imageLink#200x200

[domesticmouse]

Please add a test that covers width x height from markdown to final usage to prevent future breakage

[stuartmorgan-g]

• The title of the PR starts with the name of the package surrounded by square brackets, e.g. [shared_preferences]

This was not done; please don't check boxes without completing the steps they describe.

• All existing and new tests are passing.

CI indicates that the new test is not passing, which will need to be resolved before this can be reviewed.

[M97Chahboun]

I run image tests before any changes and I get :

══╡ EXCEPTION CAUGHT BY FLUTTER TEST FRAMEWORK ╞════════════════════════════════════════════════════
The following assertion was thrown while running async test code:
Golden "assets/images/golden/image_test/resource_asset_logo.png": Pixel test failed, 0.00% diff
detected.
Failure feedback can be found at
/Users/user/Development/packages/packages/flutter_markdown/test/failures

When the exception was thrown, this was the stack:
#0      LocalFileComparator.compare (package:flutter_test/src/_goldens_io.dart:106:5)
<asynchronous suspension>
#1      MatchesGoldenFile.matchAsync.<anonymous closure> (package:flutter_test/src/_matchers_io.dart:118:32)
<asynchronous suspension>
<asynchronous suspension>
(elided one frame from dart:async)

The exception was caught asynchronously.
════════════════════════════════════════════

Any suggestion please

[stuartmorgan-g]

Tiny changes in golden files are normal if you are on a different host OS than the baseline (which is usually Linux). The issue on CI though is that you've dramatically changed an existing golden test, but haven't changed the expected output.

Please make a new test instead of changing that one, and set a new golden for it.

[stuartmorgan-g]

From triage: @M97Chahboun Are you planning on updating the tests per the comments above?

[M97Chahboun]

@stuartmorgan I don't have any idea about golden test, but I will try to implement it ASAP

[stuartmorgan-g]

Marking as a draft pending new, passing tests that can be reviewed.

[stuartmorgan-g]

Since this is marked as a draft and hasn't been updated in several months, I’m going to close it so that our PR queue reflects active PRs. Please don't hesitate to submit a new PR if you decide to revisit this. Thanks!

[stuartmorgan-g]

LGTM

[M97Chahboun]

Thank you for your reviews and patient