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-rw-r--r--devtools/shared/heapsnapshot/tests/unit/test_census-tree-node-04.js159
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diff --git a/devtools/shared/heapsnapshot/tests/unit/test_census-tree-node-04.js b/devtools/shared/heapsnapshot/tests/unit/test_census-tree-node-04.js
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+++ b/devtools/shared/heapsnapshot/tests/unit/test_census-tree-node-04.js
@@ -0,0 +1,159 @@
+/* Any copyright is dedicated to the Public Domain.
+ http://creativecommons.org/publicdomain/zero/1.0/ */
+
+/**
+ * Tests CensusTreeNode with `allocationStack` breakdown.
+ */
+
+function run_test() {
+ const countBreakdown = { by: "count", count: true, bytes: true };
+
+ const BREAKDOWN = {
+ by: "allocationStack",
+ then: countBreakdown,
+ noStack: countBreakdown,
+ };
+
+ let stack1, stack2, stack3, stack4, stack5;
+
+ (function a() {
+ (function b() {
+ (function c() {
+ stack1 = saveStack(3);
+ }());
+ (function d() {
+ stack2 = saveStack(3);
+ stack3 = saveStack(3);
+ }());
+ stack4 = saveStack(2);
+ }());
+ }());
+
+ stack5 = saveStack(1);
+
+ const REPORT = new Map([
+ [stack1, { bytes: 10, count: 1 }],
+ [stack2, { bytes: 20, count: 2 }],
+ [stack3, { bytes: 30, count: 3 }],
+ [stack4, { bytes: 40, count: 4 }],
+ [stack5, { bytes: 50, count: 5 }],
+ ["noStack", { bytes: 60, count: 6 }],
+ ]);
+
+ const EXPECTED = {
+ name: null,
+ bytes: 0,
+ totalBytes: 210,
+ count: 0,
+ totalCount: 21,
+ children: [
+ {
+ name: stack4.parent,
+ bytes: 0,
+ totalBytes: 100,
+ count: 0,
+ totalCount: 10,
+ children: [
+ {
+ name: stack3.parent,
+ bytes: 0,
+ totalBytes: 50,
+ count: 0,
+ totalCount: 5,
+ children: [
+ {
+ name: stack3,
+ bytes: 30,
+ totalBytes: 30,
+ count: 3,
+ totalCount: 3,
+ children: undefined,
+ id: 7,
+ parent: 5,
+ reportLeafIndex: 3,
+ },
+ {
+ name: stack2,
+ bytes: 20,
+ totalBytes: 20,
+ count: 2,
+ totalCount: 2,
+ children: undefined,
+ id: 6,
+ parent: 5,
+ reportLeafIndex: 2,
+ }
+ ],
+ id: 5,
+ parent: 2,
+ reportLeafIndex: undefined,
+ },
+ {
+ name: stack4,
+ bytes: 40,
+ totalBytes: 40,
+ count: 4,
+ totalCount: 4,
+ children: undefined,
+ id: 8,
+ parent: 2,
+ reportLeafIndex: 4,
+ },
+ {
+ name: stack1.parent,
+ bytes: 0,
+ totalBytes: 10,
+ count: 0,
+ totalCount: 1,
+ children: [
+ {
+ name: stack1,
+ bytes: 10,
+ totalBytes: 10,
+ count: 1,
+ totalCount: 1,
+ children: undefined,
+ id: 4,
+ parent: 3,
+ reportLeafIndex: 1,
+ },
+ ],
+ id: 3,
+ parent: 2,
+ reportLeafIndex: undefined,
+ },
+ ],
+ id: 2,
+ parent: 1,
+ reportLeafIndex: undefined,
+ },
+ {
+ name: "noStack",
+ bytes: 60,
+ totalBytes: 60,
+ count: 6,
+ totalCount: 6,
+ children: undefined,
+ id: 10,
+ parent: 1,
+ reportLeafIndex: 6,
+ },
+ {
+ name: stack5,
+ bytes: 50,
+ totalBytes: 50,
+ count: 5,
+ totalCount: 5,
+ children: undefined,
+ id: 9,
+ parent: 1,
+ reportLeafIndex: 5
+ },
+ ],
+ id: 1,
+ parent: undefined,
+ reportLeafIndex: undefined,
+ };
+
+ compareCensusViewData(BREAKDOWN, REPORT, EXPECTED);
+}