1 files changed, 200 insertions, 0 deletions
diff --git a/dom/heapsnapshot/tests/unit/test_census-tree-node-07.js b/dom/heapsnapshot/tests/unit/test_census-tree-node-07.js
new file mode 100644
index 000000000..6bc085257
--- /dev/null
+++ b/dom/heapsnapshot/tests/unit/test_census-tree-node-07.js
@@ -0,0 +1,200 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+/**
+ * Test inverting CensusTreeNode with a non-allocation stack breakdown.
+ */
+
+function run_test() {
+  const BREAKDOWN = {
+    by: "coarseType",
+    objects: {
+      by: "objectClass",
+      then: { by: "count", count: true, bytes: true },
+      other: { by: "count", count: true, bytes: true },
+    },
+    scripts: {
+      by: "internalType",
+      then: { by: "count", count: true, bytes: true },
+    },
+    strings: {
+      by: "internalType",
+      then: { by: "count", count: true, bytes: true },
+    },
+    other:{
+      by: "internalType",
+      then: { by: "count", count: true, bytes: true },
+    },
+  };
+
+  const REPORT = {
+    objects: {
+      Array: { bytes: 50, count: 5 },
+      other: { bytes: 0, count: 0 },
+    },
+    scripts: {
+      "js::jit::JitScript": { bytes: 30, count: 3 },
+    },
+    strings: {
+      JSAtom: { bytes: 60, count: 6 },
+    },
+    other: {
+      "js::Shape": { bytes: 80, count: 8 },
+    }
+  };
+
+  const EXPECTED = {
+    name: null,
+    bytes: 0,
+    totalBytes: 220,
+    count: 0,
+    totalCount: 22,
+    children: [
+      {
+        name: "js::Shape",
+        bytes: 80,
+        totalBytes: 80,
+        count: 8,
+        totalCount: 8,
+        children: [
+          {
+            name: "other",
+            bytes: 0,
+            totalBytes: 80,
+            count: 0,
+            totalCount: 8,
+            children: [
+              {
+                name: null,
+                bytes: 0,
+                totalBytes: 220,
+                count: 0,
+                totalCount: 22,
+                children: undefined,
+                id: 14,
+                parent: 13,
+                reportLeafIndex: undefined,
+              }
+            ],
+            id: 13,
+            parent: 12,
+            reportLeafIndex: undefined,
+          }
+        ],
+        id: 12,
+        parent: 11,
+        reportLeafIndex: 9,
+      },
+      {
+        name: "JSAtom",
+        bytes: 60,
+        totalBytes: 60,
+        count: 6,
+        totalCount: 6,
+        children: [
+          {
+            name: "strings",
+            bytes: 0,
+            totalBytes: 60,
+            count: 0,
+            totalCount: 6,
+            children: [
+              {
+                name: null,
+                bytes: 0,
+                totalBytes: 220,
+                count: 0,
+                totalCount: 22,
+                children: undefined,
+                id: 17,
+                parent: 16,
+                reportLeafIndex: undefined,
+              }
+            ],
+            id: 16,
+            parent: 15,
+            reportLeafIndex: undefined,
+          }
+        ],
+        id: 15,
+        parent: 11,
+        reportLeafIndex: 7,
+      },
+      {
+        name: "Array",
+        bytes: 50,
+        totalBytes: 50,
+        count: 5,
+        totalCount: 5,
+        children: [
+          {
+            name: "objects",
+            bytes: 0,
+            totalBytes: 50,
+            count: 0,
+            totalCount: 5,
+            children: [
+              {
+                name: null,
+                bytes: 0,
+                totalBytes: 220,
+                count: 0,
+                totalCount: 22,
+                children: undefined,
+                id: 20,
+                parent: 19,
+                reportLeafIndex: undefined,
+              }
+            ],
+            id: 19,
+            parent: 18,
+            reportLeafIndex: undefined,
+          }
+        ],
+        id: 18,
+        parent: 11,
+        reportLeafIndex: 2,
+      },
+      {
+        name: "js::jit::JitScript",
+        bytes: 30,
+        totalBytes: 30,
+        count: 3,
+        totalCount: 3,
+        children: [
+          {
+            name: "scripts",
+            bytes: 0,
+            totalBytes: 30,
+            count: 0,
+            totalCount: 3,
+            children: [
+              {
+                name: null,
+                bytes: 0,
+                totalBytes: 220,
+                count: 0,
+                totalCount: 22,
+                children: undefined,
+                id: 23,
+                parent: 22,
+                reportLeafIndex: undefined,
+              }
+            ],
+            id: 22,
+            parent: 21,
+            reportLeafIndex: undefined,
+          }
+        ],
+        id: 21,
+        parent: 11,
+        reportLeafIndex: 5,
+      },
+    ],
+    id: 11,
+    parent: undefined,
+    reportLeafIndex: undefined,
+  };
+
+  compareCensusViewData(BREAKDOWN, REPORT, EXPECTED, { invert: true });
+}