Source code
Revision control
Copy as Markdown
Other Tools
Test Info: Warnings
- This test gets skipped with pattern: os == 'android'
- Manifest: devtools/client/memory/test/xpcshell/xpcshell.toml
/* Any copyright is dedicated to the Public Domain.
"use strict";
/**
* Tests the task creator `takeSnapshotAndCensus()` for the whole flow of
* taking a snapshot, and its sub-actions.
*/
const {
snapshotState: states,
treeMapState,
add_task(async function () {
const front = new StubbedMemoryFront();
const heapWorker = new HeapAnalysesClient();
await front.attach();
const store = Store();
let snapshotI = 0;
let censusI = 0;
const snapshotStates = ["SAVING", "SAVED", "READING", "READ"];
const censusStates = ["SAVING", "SAVED"];
const expectStates = () => {
const snapshot = store.getState().snapshots[0];
if (!snapshot) {
return;
}
if (snapshotI < snapshotStates.length) {
const isCorrectState =
snapshot.state === states[snapshotStates[snapshotI]];
if (isCorrectState) {
ok(true, `Found expected snapshot state ${snapshotStates[snapshotI]}`);
snapshotI++;
}
}
if (snapshot.treeMap && censusI < censusStates.length) {
if (snapshot.treeMap.state === treeMapState[censusStates[censusI]]) {
ok(true, `Found expected census state ${censusStates[censusI]}`);
censusI++;
}
}
};
const unsubscribe = store.subscribe(expectStates);
store.dispatch(actions.takeSnapshotAndCensus(front, heapWorker));
await waitUntilState(store, () => {
return (
snapshotI === snapshotStates.length && censusI === censusStates.length
);
});
unsubscribe();
ok(
true,
"takeSnapshotAndCensus() produces the correct sequence of states in a snapshot"
);
const snapshot = store.getState().snapshots[0];
ok(snapshot.treeMap, "snapshot has tree map census data");
ok(snapshot.selected, "snapshot is selected");
});