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Test Info:
/* Any copyright is dedicated to the Public Domain.
"use strict";
const { isInitialDocument } = ChromeUtils.importESModule(
"chrome://remote/content/shared/messagehandler/transports/BrowsingContextUtils.sys.mjs"
);
// We are forcing the actors to shutdown while queries are unresolved.
const { PromiseTestUtils } = ChromeUtils.importESModule(
);
PromiseTestUtils.allowMatchingRejectionsGlobally(
/Actor 'MessageHandlerFrame' destroyed before query 'MessageHandlerFrameParent:sendCommand' was resolved/
);
// The tests in this file assert the fallback retry behavior for MessageHandler commands.
// We call "blocked" commands from resources/modules/windowglobal/retry.sys.mjs
// and then trigger reload and navigations to simulate AbortErrors and force the
// MessageHandler to retry the commands, when requested.
// If no retryOnAbort argument is provided, and the preference "remote.retry-on-abort"
// is set to false the framework should retry only if context is on the initial document.
add_task(async function test_default_fallback_retry_initial_document_only() {
let tab = BrowserTestUtils.addTab(
gBrowser,
);
let rootMessageHandler = createRootMessageHandler(
"session-id-retry-initial-document"
);
try {
const initialBrowsingContext = tab.linkedBrowser.browsingContext;
ok(
isInitialDocument(initialBrowsingContext),
"Module method needs to run in the initial document"
);
info("Call a module method which will throw");
const onBlockedOneTime = rootMessageHandler.handleCommand({
moduleName: "retry",
commandName: "blockedOneTime",
destination: {
type: WindowGlobalMessageHandler.type,
id: initialBrowsingContext.id,
},
});
await onBlockedOneTime;
ok(
!isInitialDocument(tab.linkedBrowser.browsingContext),
"module method to be successful"
);
} finally {
await cleanup(rootMessageHandler, tab, false);
}
// Now try again with a normal navigation which should not retry.
tab = BrowserTestUtils.addTab(
gBrowser,
);
await BrowserTestUtils.browserLoaded(tab.linkedBrowser);
try {
rootMessageHandler = createRootMessageHandler("session-id-no-retry");
const browsingContext = tab.linkedBrowser.browsingContext;
info("Call a module method which will throw");
const onBlockedOneTime = rootMessageHandler.handleCommand({
moduleName: "retry",
commandName: "blockedOneTime",
destination: {
type: WindowGlobalMessageHandler.type,
id: browsingContext.id,
},
});
// Reloading the tab will reject the pending query with an AbortError.
await BrowserTestUtils.reloadTab(tab);
await Assert.rejects(
onBlockedOneTime,
e => e.name == "DiscardedBrowsingContextError",
"Caught the expected abort error when reloading"
);
} finally {
await cleanup(rootMessageHandler, tab);
}
});
async function cleanup(rootMessageHandler, tab) {
const browsingContext = tab.linkedBrowser.browsingContext;
// Cleanup global JSM state in the test module.
await rootMessageHandler.handleCommand({
moduleName: "retry",
commandName: "cleanup",
destination: {
type: WindowGlobalMessageHandler.type,
id: browsingContext.id,
},
});
rootMessageHandler.destroy();
gBrowser.removeTab(tab);
}