Uses the sum of border and padding if it's greater than the container definite size

[julia-script]

Objective

Match the flex container behavior with padding and border values larger than the container

Context

I couldn't find it in the flexbox spec, but I noticed that all major browsers implement this behavior

When the sum of padding and border is larger than the definite size of the flex container, it uses that as it's definite size

https://codepen.io/juliascript/pen/WNBeoev

Yoga behaves the same in the case of padding, but it ignores border

Right now Taffy behavior seems to be that in a ComputeSize run mode pass, it doesn't consider padding and border at all when styled_based_known_dimensions can be derived, while in a PerformLayout run it does account for that in the cross axis but not in the main axis

Feedback wanted

I added a simple test case, I'm not sure that's the right place

Edit:
Apparently the block layout implements this behavior so I imagine it comes from the block layout model

taffy/src/compute/block.rs

Line 172 in 066949d

intrinsic_width.maybe_clamp(min_size.width, max_size.width).maybe_max(Some(padding_border_size.width))

[alice-i-cecile]

Adopted in #655 <3 If you'd like, a review there would be helpful :) Thank you very much for tackling this.

[nicoburns]

@julia-script I've gone ahead and merged #655 because I want to put out a release. But I wanted to echo Alice's thanks to you for raising this issue and submitting a fix. It is really helpful, and I've made sure that you are credited as an author of the new PR which was directly based on this one.