summaryrefslogtreecommitdiffstats
path: root/dom/heapsnapshot/tests/unit/test_census-tree-node-10.js
diff options
context:
space:
mode:
Diffstat (limited to 'dom/heapsnapshot/tests/unit/test_census-tree-node-10.js')
-rw-r--r--dom/heapsnapshot/tests/unit/test_census-tree-node-10.js43
1 files changed, 43 insertions, 0 deletions
diff --git a/dom/heapsnapshot/tests/unit/test_census-tree-node-10.js b/dom/heapsnapshot/tests/unit/test_census-tree-node-10.js
new file mode 100644
index 000000000..b7798f23f
--- /dev/null
+++ b/dom/heapsnapshot/tests/unit/test_census-tree-node-10.js
@@ -0,0 +1,43 @@
+/* Any copyright is dedicated to the Public Domain.
+ http://creativecommons.org/publicdomain/zero/1.0/ */
+"use strict";
+
+/**
+ * Test when multiple leaves in the census report map to the same node in an
+ * inverted CensusReportTree.
+ */
+
+function run_test() {
+ const BREAKDOWN = {
+ by: "coarseType",
+ objects: {
+ by: "objectClass",
+ then: { by: "count", count: true, bytes: true },
+ },
+ other: {
+ by: "internalType",
+ then: { by: "count", count: true, bytes: true },
+ },
+ strings: { by: "count", count: true, bytes: true },
+ scripts: { by: "count", count: true, bytes: true },
+ };
+
+ const REPORT = {
+ objects: {
+ Array: { count: 1, bytes: 10 },
+ },
+ other: {
+ Array: { count: 1, bytes: 10 },
+ },
+ strings: { count: 0, bytes: 0 },
+ scripts: { count: 0, bytes: 0 },
+ };
+
+ const node = censusReportToCensusTreeNode(BREAKDOWN, REPORT, { invert: true });
+
+ equal(node.children[0].name, "Array");
+ equal(node.children[0].reportLeafIndex.size, 2);
+ dumpn(`node.children[0].reportLeafIndex = ${[...node.children[0].reportLeafIndex]}`);
+ ok(node.children[0].reportLeafIndex.has(2));
+ ok(node.children[0].reportLeafIndex.has(6));
+}