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Test Info:
/* Any copyright is dedicated to the Public Domain.
"use strict";
const { assertUpdate, createSessionDataUpdate, getUpdates } =
SessionDataUpdateHelpers;
// Test various session data update scenarios against a single browsing context.
add_task(async function test_session_data_update() {
const tab1 = gBrowser.selectedTab;
await loadURL(tab1.linkedBrowser, TEST_PAGE);
const browsingContext1 = tab1.linkedBrowser.browsingContext;
const root = createRootMessageHandler("session-data-update");
info("Add a new session data item, expect one return value");
await root.updateSessionData([
createSessionDataUpdate(["text-1"], "add", "category1"),
]);
let processedUpdates = await getUpdates(root, browsingContext1);
is(processedUpdates.length, 1);
assertUpdate(processedUpdates.at(-1), ["text-1"], "category1");
info("Add two session data items, expect one return value with both items");
await root.updateSessionData([
createSessionDataUpdate(["text-2"], "add", "category1"),
createSessionDataUpdate(["text-3"], "add", "category1"),
]);
processedUpdates = await getUpdates(root, browsingContext1);
is(processedUpdates.length, 2);
assertUpdate(
processedUpdates.at(-1),
["text-1", "text-2", "text-3"],
"category1"
);
info("Try to add an existing data item, expect no update broadcast");
await root.updateSessionData([
createSessionDataUpdate(["text-1"], "add", "category1"),
]);
processedUpdates = await getUpdates(root, browsingContext1);
is(processedUpdates.length, 2);
info("Add an existing and a new item");
await root.updateSessionData([
createSessionDataUpdate(["text-2", "text-4"], "add", "category1"),
]);
processedUpdates = await getUpdates(root, browsingContext1);
is(processedUpdates.length, 3);
assertUpdate(
processedUpdates.at(-1),
["text-1", "text-2", "text-3", "text-4"],
"category1"
);
info("Remove an item, expect only the new item to return");
await root.updateSessionData([
createSessionDataUpdate(["text-3"], "remove", "category1"),
]);
processedUpdates = await getUpdates(root, browsingContext1);
is(processedUpdates.length, 4);
assertUpdate(
processedUpdates.at(-1),
["text-1", "text-2", "text-4"],
"category1"
);
info("Remove a unknown item, expect no return value");
await root.updateSessionData([
createSessionDataUpdate(["text-unknown"], "remove", "category1"),
]);
processedUpdates = await getUpdates(root, browsingContext1);
is(processedUpdates.length, 4);
assertUpdate(
processedUpdates.at(-1),
["text-1", "text-2", "text-4"],
"category1"
);
info("Remove an existing and a unknown item");
await root.updateSessionData([
createSessionDataUpdate(["text-2"], "remove", "category1"),
createSessionDataUpdate(["text-unknown"], "remove", "category1"),
]);
processedUpdates = await getUpdates(root, browsingContext1);
is(processedUpdates.length, 5);
assertUpdate(processedUpdates.at(-1), ["text-1", "text-4"], "category1");
info("Add and remove at once");
await root.updateSessionData([
createSessionDataUpdate(["text-5"], "add", "category1"),
createSessionDataUpdate(["text-4"], "remove", "category1"),
]);
processedUpdates = await getUpdates(root, browsingContext1);
is(processedUpdates.length, 6);
assertUpdate(processedUpdates.at(-1), ["text-1", "text-5"], "category1");
info("Adding and removing an item does not trigger any update");
await root.updateSessionData([
createSessionDataUpdate(["text-6"], "add", "category1"),
createSessionDataUpdate(["text-6"], "remove", "category1"),
]);
processedUpdates = await getUpdates(root, browsingContext1);
// TODO: We could detect transactions which can't have any impact and fully
todo_is(processedUpdates.length, 6);
assertUpdate(processedUpdates.at(-1), ["text-1", "text-5"], "category1");
root.destroy();
});