Increase hydration test timeouts to fix flaky failures

[Madoshakalaka]

we've been having flakey hydration tests for quite a few weeks.

Assertion failures look like:

  left: "<div><!--<[...Comp]>--><div>12345</div><script type=\"application/x-yew-comp-state\">...</script><!--</[...Comp]>--></div>"
  right: "<div><div>12345</div></div>"

We see failure modes show different stages of incomplete hydration too

• Sometimes only inner components don't complete (Comp markers remain)
• Sometimes even outer component hydration doesn't complete (all markers remain)

This happens because client side decode is async:

  async fn decode_base64(s: &str) -> Result<Vec<u8>, JsValue> {
     let fetch_promise = window().fetch_with_str(s);  // ← Uses browser fetch API

     let content_promise = JsFuture::from(fetch_promise)
         .await
         .and_then(|m| m.dyn_into::<web_sys::Response>())
         .and_then(|m| m.array_buffer())?;

     let content_array = JsFuture::from(content_promise)
         .await
         .as_ref()
         .map(Uint8Array::new)?;

     Ok(content_array.to_vec())
 }

It's a design choice:

#2650 (comment)

[github-actions]

Visit the preview URL for this PR (updated for commit b058c9f):

https://yew-rs-api--pr3973-fix-flaky-hydration-xjb6l9oi.web.app

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[github-actions]

Benchmark - core

Yew Master

vnode           fastest       │ slowest       │ median        │ mean          │ samples │ iters
╰─ vnode_clone  2.462 ns      │ 3.84 ns       │ 3.705 ns      │ 3.398 ns      │ 100     │ 1000000000

Pull Request

vnode           fastest       │ slowest       │ median        │ mean          │ samples │ iters
╰─ vnode_clone  3.726 ns      │ 4.08 ns       │ 3.731 ns      │ 3.736 ns      │ 100     │ 1000000000

[github-actions]

Benchmark - SSR

Yew Master

Details

Benchmark	Round	Min (ms)	Max (ms)	Mean (ms)	Standard Deviation
Baseline	10	290.861	293.055	291.358	0.804
Hello World	10	508.967	519.739	511.250	3.307
Function Router	10	1710.906	1729.588	1719.772	6.212
Concurrent Task	10	1005.767	1007.351	1006.583	0.509
Many Providers	10	1102.832	1150.264	1119.780	15.299

Pull Request

Details

Benchmark	Round	Min (ms)	Max (ms)	Mean (ms)	Standard Deviation
Baseline	10	290.867	293.148	291.407	0.678
Hello World	10	503.684	554.924	512.996	15.237
Function Router	10	1675.987	1701.277	1687.888	9.030
Concurrent Task	10	1005.115	1007.539	1006.340	0.795
Many Providers	10	1107.025	1175.180	1130.156	22.926

[github-actions]

Size Comparison

Details

examples	master (KB)	pull request (KB)	diff (KB)	diff (%)
async_clock	98.184	98.184	0	0.000%
boids	167.706	167.706	0	0.000%
communication_child_to_parent	91.397	91.397	0	0.000%
communication_grandchild_with_grandparent	102.510	102.510	0	0.000%
communication_grandparent_to_grandchild	98.877	98.877	0	0.000%
communication_parent_to_child	88.759	88.759	0	0.000%
contexts	104.046	104.046	0	0.000%
counter	85.430	85.430	0	0.000%
counter_functional	85.794	85.794	0	0.000%
dyn_create_destroy_apps	88.521	88.521	0	0.000%
file_upload	98.022	98.022	0	0.000%
function_delayed_input	91.317	91.317	0	0.000%
function_memory_game	169.858	169.858	0	0.000%
function_router	327.898	327.898	0	0.000%
function_todomvc	161.445	161.445	0	0.000%
futures	234.383	234.383	0	0.000%
game_of_life	103.747	103.747	0	0.000%
immutable	245.762	245.762	0	0.000%
inner_html	79.913	79.913	0	0.000%
js_callback	107.816	107.816	0	0.000%
keyed_list	179.127	179.127	0	0.000%
mount_point	83.130	83.130	0	0.000%
nested_list	112.702	112.702	0	0.000%
node_refs	90.774	90.774	0	0.000%
password_strength	1738.872	1738.872	0	0.000%
portals	92.269	92.269	0	0.000%
router	301.011	301.011	0	0.000%
suspense	111.770	111.770	0	0.000%
timer	87.980	87.980	0	0.000%
timer_functional	96.062	96.062	0	0.000%
todomvc	141.425	141.425	0	0.000%
two_apps	85.293	85.293	0	0.000%
web_worker_fib	133.415	133.415	0	0.000%
web_worker_prime	184.984	184.984	0	0.000%
webgl	82.474	82.474	0	0.000%

✅ None of the examples has changed their size significantly.