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Test Info:
/* Any copyright is dedicated to the Public Domain.
/* global ChromeUtils, HeapSnapshot */
// Test that we can save a heap snapshot and transfer it over the RDP in e10s
// where the child process is sandboxed and so we have to use
// HeapSnapshotFileActor to get the heap snapshot file.
"use strict";
const TEST_URL = "data:text/html,<html><body></body></html>";
this.test = makeMemoryTest(TEST_URL, async function ({ panel }) {
const memoryFront = panel.panelWin.gStore.getState().front;
ok(memoryFront, "Should get the MemoryFront");
const snapshotFilePath = await memoryFront.saveHeapSnapshot({
// Force a copy so that we go through the HeapSnapshotFileActor's
// transferHeapSnapshot request and exercise this code path on e10s.
forceCopy: true,
});
ok(
!!(await IOUtils.stat(snapshotFilePath)),
"Should have the heap snapshot file"
);
const snapshot = ChromeUtils.readHeapSnapshot(snapshotFilePath);
ok(
HeapSnapshot.isInstance(snapshot),
"And we should be able to read a HeapSnapshot instance from the file"
);
});