diff options
Diffstat (limited to 'devtools/shared/heapsnapshot/tests/unit/test_DominatorTree_04.js')
-rw-r--r-- | devtools/shared/heapsnapshot/tests/unit/test_DominatorTree_04.js | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/devtools/shared/heapsnapshot/tests/unit/test_DominatorTree_04.js b/devtools/shared/heapsnapshot/tests/unit/test_DominatorTree_04.js new file mode 100644 index 000000000..e5aef3fec --- /dev/null +++ b/devtools/shared/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(); +} |