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Diffstat (limited to 'dom/heapsnapshot/tests/unit/test_HeapAnalyses_getDominatorTree_01.js')
-rw-r--r-- | dom/heapsnapshot/tests/unit/test_HeapAnalyses_getDominatorTree_01.js | 69 |
1 files changed, 69 insertions, 0 deletions
diff --git a/dom/heapsnapshot/tests/unit/test_HeapAnalyses_getDominatorTree_01.js b/dom/heapsnapshot/tests/unit/test_HeapAnalyses_getDominatorTree_01.js new file mode 100644 index 000000000..cedea5375 --- /dev/null +++ b/dom/heapsnapshot/tests/unit/test_HeapAnalyses_getDominatorTree_01.js @@ -0,0 +1,69 @@ +/* Any copyright is dedicated to the Public Domain. + http://creativecommons.org/publicdomain/zero/1.0/ */ + +// Test the HeapAnalyses{Client,Worker} "getDominatorTree" request. + +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 }, +}; + +add_task(function* () { + const client = new HeapAnalysesClient(); + + const snapshotFilePath = saveNewHeapSnapshot(); + yield client.readHeapSnapshot(snapshotFilePath); + ok(true, "Should have read the heap snapshot"); + + const dominatorTreeId = yield client.computeDominatorTree(snapshotFilePath); + equal(typeof dominatorTreeId, "number", + "should get a dominator tree id, and it should be a number"); + + const partialTree = yield client.getDominatorTree({ + dominatorTreeId, + breakdown + }); + ok(partialTree, "Should get a partial tree"); + equal(typeof partialTree, "object", + "partialTree should be an object"); + + function checkTree(node) { + equal(typeof node.nodeId, "number", "each node should have an id"); + + if (node === partialTree) { + equal(node.parentId, undefined, "the root has no parent"); + } else { + equal(typeof node.parentId, "number", "each node should have a parent id"); + } + + equal(typeof node.retainedSize, "number", + "each node should have a retained size"); + + ok(node.children === undefined || Array.isArray(node.children), + "each node either has a list of children, or undefined meaning no children loaded"); + equal(typeof node.moreChildrenAvailable, "boolean", + "each node should indicate if there are more children available or not"); + + equal(typeof node.shortestPaths, "object", + "Should have shortest paths"); + equal(typeof node.shortestPaths.nodes, "object", + "Should have shortest paths' nodes"); + equal(typeof node.shortestPaths.edges, "object", + "Should have shortest paths' edges"); + + if (node.children) { + node.children.forEach(checkTree); + } + } + + checkTree(partialTree); + + client.destroy(); +}); |