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author | Matt A. Tobin <email@mattatobin.com> | 2020-02-22 17:32:39 -0500 |
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committer | Matt A. Tobin <email@mattatobin.com> | 2020-02-22 17:32:39 -0500 |
commit | 4e2e9be6abed3225406b466099e397acc0f914d2 (patch) | |
tree | 023551018892b8e76ae80e63a08d9d6a27c21a77 /dom/heapsnapshot/tests/unit/test_HeapAnalyses_takeCensusDiff_01.js | |
parent | a7888b8cf20691a4090715ab9b055ec3cb75f5e8 (diff) | |
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Reclassify heapsnapshot and nsJSInspector as not part of devtools
This resolves Issue #316
Diffstat (limited to 'dom/heapsnapshot/tests/unit/test_HeapAnalyses_takeCensusDiff_01.js')
-rw-r--r-- | dom/heapsnapshot/tests/unit/test_HeapAnalyses_takeCensusDiff_01.js | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/dom/heapsnapshot/tests/unit/test_HeapAnalyses_takeCensusDiff_01.js b/dom/heapsnapshot/tests/unit/test_HeapAnalyses_takeCensusDiff_01.js new file mode 100644 index 000000000..6f22cbad3 --- /dev/null +++ b/dom/heapsnapshot/tests/unit/test_HeapAnalyses_takeCensusDiff_01.js @@ -0,0 +1,54 @@ +/* Any copyright is dedicated to the Public Domain. + http://creativecommons.org/publicdomain/zero/1.0/ */ + +// Test that the HeapAnalyses{Client,Worker} can take diffs between censuses. + +function run_test() { + run_next_test(); +} + +const BREAKDOWN = { + by: "objectClass", + then: { by: "count", count: true, bytes: false }, + other: { by: "count", count: true, bytes: false }, +}; + +add_task(function* () { + const client = new HeapAnalysesClient(); + + const markers = [allocationMarker()]; + + const firstSnapshotFilePath = saveNewHeapSnapshot(); + + // Allocate and hold an additional AllocationMarker object so we can see it in + // the next heap snapshot. + markers.push(allocationMarker()); + + const secondSnapshotFilePath = saveNewHeapSnapshot(); + + yield client.readHeapSnapshot(firstSnapshotFilePath); + yield client.readHeapSnapshot(secondSnapshotFilePath); + ok(true, "Should have read both heap snapshot files"); + + const { delta } = yield client.takeCensusDiff(firstSnapshotFilePath, + secondSnapshotFilePath, + { breakdown: BREAKDOWN }); + + equal(delta.AllocationMarker.count, 1, + "There exists one new AllocationMarker in the second heap snapshot"); + + const { delta: deltaTreeNode } = yield client.takeCensusDiff(firstSnapshotFilePath, + secondSnapshotFilePath, + { breakdown: BREAKDOWN }, + { asTreeNode: true }); + + // Have to manually set these because symbol properties aren't structured + // cloned. + delta[CensusUtils.basisTotalBytes] = deltaTreeNode.totalBytes; + delta[CensusUtils.basisTotalCount] = deltaTreeNode.totalCount; + + compareCensusViewData(BREAKDOWN, delta, deltaTreeNode, + "Returning delta-census as a tree node represents same data as the report"); + + client.destroy(); +}); |