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diff --git a/devtools/client/performance/test/browser_perf-tree-view-09.js b/devtools/client/performance/test/browser_perf-tree-view-09.js
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+++ b/devtools/client/performance/test/browser_perf-tree-view-09.js
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+/* Any copyright is dedicated to the Public Domain.
+ http://creativecommons.org/publicdomain/zero/1.0/ */
+"use strict";
+
+/**
+ * Tests that the profiler's tree view sorts inverted call trees by
+ * "self cost" and not "total cost".
+ */
+
+const { ThreadNode } = require("devtools/client/performance/modules/logic/tree-model");
+const { CallView } = require("devtools/client/performance/modules/widgets/tree-view");
+const RecordingUtils = require("devtools/shared/performance/recording-utils");
+
+add_task(function () {
+ let threadNode = new ThreadNode(gProfile.threads[0], { startTime: 0, endTime: 20,
+ invertTree: true });
+ let treeRoot = new CallView({ frame: threadNode, inverted: true });
+ let container = document.createElement("vbox");
+ treeRoot.attachTo(container);
+
+ is(treeRoot.getChild(0).frame.location, "B",
+ "The tree root's first child is the `B` function.");
+ is(treeRoot.getChild(1).frame.location, "A",
+ "The tree root's second child is the `A` function.");
+});
+
+const gProfile = RecordingUtils.deflateProfile({
+ meta: { version: 2 },
+ threads: [{
+ samples: [{
+ time: 1,
+ frames: [
+ { location: "(root)" },
+ { location: "A" },
+ { location: "B" },
+ ]
+ }, {
+ time: 2,
+ frames: [
+ { location: "(root)" },
+ { location: "A" },
+ { location: "B" }
+ ]
+ }, {
+ time: 3,
+ frames: [
+ { location: "(root)" },
+ { location: "A" },
+ { location: "B" },
+ ]
+ }, {
+ time: 4,
+ frames: [
+ { location: "(root)" },
+ { location: "A" }
+ ]
+ }]
+ }]
+});