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pyscript/pyscript.core/tests/integration/test_shadow_root.py
Antonio Cuni abfc68765f Enable worker tests (#1757)
This PR re-enables tests on `worker`s. Highlights:
 
* by default, each test is run twice: the main thread version uses `<script type="py">`, the worker version automatically turn the tags into `<script type="py" worker>`

* you can tweak the settings per-class by using the `@with_execution_thread` decorator. In particular, `@with_execution_thread(None)` is for those tests which don't care about it (e.g., `test_py_config.py`)

* inside each class, there might be some test which should be run only in the main thread (because it doesn't make sense to test it in a worker). For those, I introduced the `@only_main` decorator

* we might introduce `@only_worker` in the future, if needed

* `@skip_worker` is for those tests which currently pass on main but not on workers. These are meant to be temporary, and eventually they should all be fixed
 
During the process, I tweaked/improved/fixed/deleted some of the existing tests. Some of them were at risk of being flaky and I made them more robust, others depended on some very precise implementation detail, and I made them more generic (for example, `test_image_renders_correctly` relied on pillow to render an image with a very specific string of bytes, and it broke due to the recent upgrade to pyodide 0.24.1)
 
I also renamed all the skip messages to start with `NEXT`, so that they are easier to grep.
2023-09-27 10:05:40 +02:00

33 lines
1.2 KiB
Python

import pytest
from .support import PyScriptTest
class TestShadowRoot(PyScriptTest):
@pytest.mark.skip("NEXT: Element interface is gone. Replace with PyDom")
def test_reachable_shadow_root(self):
self.pyscript_run(
r"""
<script>
// reason to wait for py-script is that it's the entry point for
// all patches and the MutationObserver, otherwise being this a synchronous
// script the constructor gets instantly invoked at the node before
// py-script gets a chance to initialize itself.
customElements.whenDefined('py-script').then(() => {
customElements.define('s-r', class extends HTMLElement {
constructor() {
super().attachShadow({mode: 'closed'}).innerHTML =
'<div id="shadowed">OK</div>';
}
});
});
</script>
<s-r></s-r>
<script type="py">
import js
js.console.log(Element("shadowed").innerHtml)
</script>
"""
)
assert self.console.log.lines[-1] == "OK"