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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_DominatorTree_04.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_DominatorTree_04.js')
-rw-r--r-- | dom/heapsnapshot/tests/unit/test_DominatorTree_04.js | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/dom/heapsnapshot/tests/unit/test_DominatorTree_04.js b/dom/heapsnapshot/tests/unit/test_DominatorTree_04.js new file mode 100644 index 000000000..e5aef3fec --- /dev/null +++ b/dom/heapsnapshot/tests/unit/test_DominatorTree_04.js @@ -0,0 +1,22 @@ +/* Any copyright is dedicated to the Public Domain. + http://creativecommons.org/publicdomain/zero/1.0/ */ + +// Test that we can get the retained sizes of dominator trees. + +function run_test() { + const dominatorTree = saveHeapSnapshotAndComputeDominatorTree(); + equal(typeof dominatorTree.getRetainedSize, "function", + "getRetainedSize should be a function"); + + const size = dominatorTree.getRetainedSize(dominatorTree.root); + ok(size, "should get a size for the root"); + equal(typeof size, "number", "retained sizes should be a number"); + equal(Math.floor(size), size, "size should be an integer"); + ok(size > 0, "size should be positive"); + ok(size <= Math.pow(2, 64), "size should be less than or equal to 2^64"); + + const bad = dominatorTree.getRetainedSize(1); + equal(bad, null, "null is returned for unknown node ids"); + + do_test_finished(); +} |