Mypal/dom/heapsnapshot/tests/unit/test_HeapAnalyses_deleteHea...

63 lines
1.8 KiB
JavaScript

/* Any copyright is dedicated to the Public Domain.
http://creativecommons.org/publicdomain/zero/1.0/ */
// Test other dominatorTrees can still be retrieved after deleting a snapshot
function run_test() {
run_next_test();
}
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 },
};
function* createSnapshotAndDominatorTree(client) {
let snapshotFilePath = saveNewHeapSnapshot();
yield client.readHeapSnapshot(snapshotFilePath);
let dominatorTreeId = yield client.computeDominatorTree(snapshotFilePath);
return { dominatorTreeId, snapshotFilePath };
}
add_task(function* () {
const client = new HeapAnalysesClient();
let savedSnapshots = [
yield createSnapshotAndDominatorTree(client),
yield createSnapshotAndDominatorTree(client),
yield createSnapshotAndDominatorTree(client)
];
ok(true, "Create 3 snapshots and dominator trees");
yield client.deleteHeapSnapshot(savedSnapshots[1].snapshotFilePath);
ok(true, "Snapshot deleted");
let tree = yield client.getDominatorTree({
dominatorTreeId: savedSnapshots[0].dominatorTreeId,
breakdown
});
ok(tree, "Should get a valid tree for first snapshot");
let threw = false;
try {
yield client.getDominatorTree({
dominatorTreeId: savedSnapshots[1].dominatorTreeId,
breakdown
});
} catch (_) {
threw = true;
}
ok(threw, "getDominatorTree on a deleted snapshot should throw an error");
tree = yield client.getDominatorTree({
dominatorTreeId: savedSnapshots[2].dominatorTreeId,
breakdown
});
ok(tree, "Should get a valid tree for third snapshot");
client.destroy();
});