Add cache, fetch, retry logic to tests (#829)

* Add cache, fetch, retry logic to tests

* [pre-commit.ci] auto fixes from pre-commit.com hooks

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* run in parallel

* add pytest-xdist

* undo parallelism. Need to remove http server to enable.

* woops a extra space

* Pass flake8

* [pre-commit.ci] auto fixes from pre-commit.com hooks

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* spell fulfill

* use decorator for fetch if not in cache

* Fix --headed and limit to PlaywrightRequestError

* [pre-commit.ci] auto fixes from pre-commit.com hooks

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* docs on cache

* CICD caching of conda on unstable builds

* fix config issues

* empty commit to trigger gh-actions

* restore build-unstable

* [pre-commit.ci] auto fixes from pre-commit.com hooks

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* Remove http server, add parallel

* [pre-commit.ci] auto fixes from pre-commit.com hooks

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* temp: Bypass zip runtime test and point to v0.21.3 on CDN

* suport for files in zip under /pyodide

* remove test-one

* self.http_server and remove content_type

* domcontentloaded w no timeout on base url + longer timeout on wait_for_pyscript

* Fixed #678

* [pre-commit.ci] auto fixes from pre-commit.com hooks

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* set default timeout to 60000

* [pre-commit.ci] auto fixes from pre-commit.com hooks

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* seamless --headed support

* add test-integration-parallel and default for GHActions

* simplify the code. Use http://fakeserver instead of localhost:8080 so that it's clearer that the browser is NOT hitting a real server, and use urllib to parse the url. Moreover, the special case for pyodide is no longer needed, it's automatically handled by the normal 'fakeserver' logic

* The page-routing logic is becoming too much complicated to stay as an inner function. Move it to its own class, and add some logic to workaround a limitation of playwright which just hangs if a Python exception is raised inside it

* no need to use a hash, we can use the url as the key

* re-implement the retry logic. The old @retry decorator was nice but a bit too over-engineered and most importantly failed silently in case of exceptions. This new approach is less powerful but since we want to retry only two times, simple is better than complex -- and in case of exception, the exception is actually raised

* improve logging

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
Co-authored-by: Madhur Tandon <madhurtandon23@gmail.com>
Co-authored-by: Antonio Cuni <anto.cuni@gmail.com>

pyscriptjs/tests/integration/test_zz_examples.py

@@ -241,7 +241,7 @@ class TestExamples(PyScriptTest):
     def test_panel_kmeans(self):
         # XXX improve this test
         self.goto("examples/panel_kmeans.html")
-        self.wait_for_pyscript(timeout=120 * 1000)
+        self.wait_for_pyscript()
         assert self.page.title() == "Pyscript/Panel KMeans Demo"
         wait_for_render(self.page, "*", "<div.*?class=['\"]bk-root['\"].*?>")
 
@@ -339,7 +339,6 @@ class TestExamples(PyScriptTest):
         result = self.page.locator("#toga_c_input")
         assert "40.555" in result.input_value()
 
-    @pytest.mark.xfail(reason="it never finishes loading, issue #678")
     def test_webgl_raycaster_index(self):
         # XXX improve this test
         self.goto("examples/webgl/raycaster/index.html")