From 4e2e9be6abed3225406b466099e397acc0f914d2 Mon Sep 17 00:00:00 2001 From: "Matt A. Tobin" Date: Sat, 22 Feb 2020 17:32:39 -0500 Subject: Reclassify heapsnapshot and nsJSInspector as not part of devtools This resolves Issue #316 --- .../unit/test_HeapSnapshot_creationTime_01.js | 30 ++++++++++++++++++++++ 1 file changed, 30 insertions(+) create mode 100644 dom/heapsnapshot/tests/unit/test_HeapSnapshot_creationTime_01.js (limited to 'dom/heapsnapshot/tests/unit/test_HeapSnapshot_creationTime_01.js') diff --git a/dom/heapsnapshot/tests/unit/test_HeapSnapshot_creationTime_01.js b/dom/heapsnapshot/tests/unit/test_HeapSnapshot_creationTime_01.js new file mode 100644 index 000000000..0d08fea16 --- /dev/null +++ b/dom/heapsnapshot/tests/unit/test_HeapSnapshot_creationTime_01.js @@ -0,0 +1,30 @@ +/* Any copyright is dedicated to the Public Domain. + http://creativecommons.org/publicdomain/zero/1.0/ */ + +// HeapSnapshot.prototype.creationTime returns the expected time. + +function waitForThirtyMilliseconds() { + const start = Date.now(); + while (Date.now() - start < 30) ; +} + +function run_test() { + const start = Date.now() * 1000; + do_print("start = " + start); + + // Because Date.now() is less precise than the snapshot's time stamp, give it + // a little bit of head room. Additionally, WinXP's timer only has granularity + // of +/- 15ms. + waitForThirtyMilliseconds(); + const path = ChromeUtils.saveHeapSnapshot({ runtime: true }); + waitForThirtyMilliseconds(); + + const end = Date.now() * 1000; + do_print("end = " + end); + + const snapshot = ChromeUtils.readHeapSnapshot(path); + do_print("snapshot.creationTime = " + snapshot.creationTime); + + ok(snapshot.creationTime >= start); + ok(snapshot.creationTime <= end); +} -- cgit v1.2.3