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/* Any copyright is dedicated to the Public Domain.
http://creativecommons.org/publicdomain/zero/1.0/ */
"use strict";
/**
* Tests the async reducer responding to the action `takeSnapshot(front)`
*/
const actions = require("resource://devtools/client/memory/actions/snapshot.js");
const {
snapshotState: states,
} = require("resource://devtools/client/memory/constants.js");
add_task(async function () {
const front = new StubbedMemoryFront();
await front.attach();
const store = Store();
const unsubscribe = store.subscribe(checkState);
let foundPendingState = false;
let foundDoneState = false;
function checkState() {
const { snapshots } = store.getState();
const lastSnapshot = snapshots[snapshots.length - 1];
if (lastSnapshot.state === states.SAVING) {
foundPendingState = true;
ok(
foundPendingState,
"Got state change for pending heap snapshot request"
);
ok(!lastSnapshot.path, "Snapshot does not yet have a path");
ok(!lastSnapshot.census, "Has no census data when loading");
} else if (lastSnapshot.state === states.SAVED) {
foundDoneState = true;
ok(
foundDoneState,
"Got state change for completed heap snapshot request"
);
ok(foundPendingState, "SAVED state occurs after SAVING state");
ok(lastSnapshot.path, "Snapshot fetched with a path");
ok(
snapshots.every(s => s.selected === (s.id === lastSnapshot.id)),
"Only recent snapshot is selected"
);
}
}
for (let i = 0; i < 4; i++) {
store.dispatch(actions.takeSnapshot(front));
await waitUntilState(store, () => foundPendingState && foundDoneState);
// reset state trackers
foundDoneState = foundPendingState = false;
}
unsubscribe();
});
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