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Test Info: Warnings
- This test gets skipped with pattern: os == 'android'
- Manifest: devtools/shared/heapsnapshot/tests/xpcshell/xpcshell.toml
/* Any copyright is dedicated to the Public Domain.
"use strict";
// Test other dominatorTrees can still be retrieved after deleting a snapshot
const breakdown = {
by: "coarseType",
objects: { by: "count", count: true, bytes: true },
scripts: { by: "count", count: true, bytes: true },
strings: { by: "count", count: true, bytes: true },
other: { by: "count", count: true, bytes: true },
domNode: { by: "count", count: true, bytes: true },
};
async function createSnapshotAndDominatorTree(client) {
const snapshotFilePath = saveNewHeapSnapshot();
await client.readHeapSnapshot(snapshotFilePath);
const dominatorTreeId = await client.computeDominatorTree(snapshotFilePath);
return { dominatorTreeId, snapshotFilePath };
}
add_task(async function () {
const client = new HeapAnalysesClient();
const savedSnapshots = [
await createSnapshotAndDominatorTree(client),
await createSnapshotAndDominatorTree(client),
await createSnapshotAndDominatorTree(client),
];
ok(true, "Create 3 snapshots and dominator trees");
await client.deleteHeapSnapshot(savedSnapshots[1].snapshotFilePath);
ok(true, "Snapshot deleted");
let tree = await client.getDominatorTree({
dominatorTreeId: savedSnapshots[0].dominatorTreeId,
breakdown,
});
ok(tree, "Should get a valid tree for first snapshot");
let threw = false;
try {
await client.getDominatorTree({
dominatorTreeId: savedSnapshots[1].dominatorTreeId,
breakdown,
});
} catch (_) {
threw = true;
}
ok(threw, "getDominatorTree on a deleted snapshot should throw an error");
tree = await client.getDominatorTree({
dominatorTreeId: savedSnapshots[2].dominatorTreeId,
breakdown,
});
ok(tree, "Should get a valid tree for third snapshot");
client.destroy();
});