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Try to improve stability of history test

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Tests cannot navigate away from the page page. If they do, the testRunner will
crash, as it tries to access `assertOk` on a page that no longer exists. This
commit hacks the history test, using an iframe, to try to test the history API
without navigating off the main page.
This commit is contained in:
Karl Seguin
2026-03-17 08:15:49 +08:00
parent b0b1f755ea
commit deb08b7880
3 changed files with 46 additions and 34 deletions
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42
src/browser/tests/history.html
View File

@@ -2,37 +2,17 @@
<script src="testing.js"></script>
<script id=history>
testing.expectEqual('auto', history.scrollRestoration);
history.scrollRestoration = 'manual';
testing.expectEqual('manual', history.scrollRestoration);
history.scrollRestoration = 'auto';
testing.expectEqual('auto', history.scrollRestoration);
testing.expectEqual(null, history.state)
history.pushState({ testInProgress: true }, null, 'http://127.0.0.1:9582/src/browser/tests/history_after_nav.skip.html');
testing.expectEqual({ testInProgress: true }, history.state);
history.pushState({ testInProgress: false }, null, 'http://127.0.0.1:9582/xhr/json');
history.replaceState({ "new": "field", testComplete: true }, null);
let state = { "new": "field", testComplete: true };
testing.expectEqual(state, history.state);
let popstateEventFired = false;
let popstateEventState = null;
window.addEventListener('popstate', (event) => {
popstateEventFired = true;
popstateEventState = event.state;
});
// This test is a bit wonky. But it's trying to test navigation, which is
// something we can't do in the main page (we can't navigate away from this
// page and still assertOk in the test runner).
// If support/history.html has a failed assertion, it'll log the error and
// stop the script. If it succeeds, it'll set support_history_completed
// which we can use here to assume everything passed.
testing.eventually(() => {
testing.expectEqual(true, popstateEventFired);
testing.expectEqual({testInProgress: true }, popstateEventState);
})
history.back();
testing.expectEqual(true, window.support_history_completed);
testing.expectEqual(true, window.support_history_popstateEventFired);
testing.expectEqual({testInProgress: true }, window.support_history_popstateEventState);
});
</script>
<iframe id=frame src="support/history.html"></iframe>

33
src/browser/tests/support/history.html Normal file
View File

@@ -0,0 +1,33 @@
<!DOCTYPE html>
<script src="../testing.js"></script>
<script id=history>
testing.expectEqual('auto', history.scrollRestoration);
history.scrollRestoration = 'manual';
testing.expectEqual('manual', history.scrollRestoration);
history.scrollRestoration = 'auto';
testing.expectEqual('auto', history.scrollRestoration);
testing.expectEqual(null, history.state)
history.pushState({ testInProgress: true }, null, testing.BASE_URL + 'history_after_nav.skip.html');
testing.expectEqual({ testInProgress: true }, history.state);
history.pushState({ testInProgress: false }, null, testing.ORIGIN + '/xhr/json');
history.replaceState({ "new": "field", testComplete: true }, null);
let state = { "new": "field", testComplete: true };
testing.expectEqual(state, history.state);
let popstateEventFired = false;
let popstateEventState = null;
window.top.support_history_completed = true;
window.addEventListener('popstate', (event) => {
window.top.window.support_history_popstateEventFired = true;
window.top.window.support_history_popstateEventState = event.state;
});
history.back();
</script>

5
src/browser/tests/testing.js
View File

@@ -99,8 +99,7 @@
}
}
// our test runner sets this to true
const IS_TEST_RUNNER = window._lightpanda_skip_auto_assert === true;
const IS_TEST_RUNNER = window.navigator.userAgent.startsWith("Lightpanda/");
window.testing = {
fail: fail,
@@ -118,7 +117,7 @@
BASE_URL: 'http://127.0.0.1:9582/src/browser/tests/',
};
if (window.navigator.userAgent.startsWith("Lightpanda/") == false) {
if (IS_TEST_RUNNER === false) {
// The page is running in a different browser. Probably a developer making sure
// a test is correct. There are a few tweaks we need to do to make this a
// seemless, namely around adapting paths/urls.