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-rw-r--r--devtools/client/performance/test/browser_perf-options-show-idle-blocks-02.js45
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diff --git a/devtools/client/performance/test/browser_perf-options-show-idle-blocks-02.js b/devtools/client/performance/test/browser_perf-options-show-idle-blocks-02.js
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+++ b/devtools/client/performance/test/browser_perf-options-show-idle-blocks-02.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 memory flamegraphs get rerendered when toggling `show-idle-blocks`.
+ */
+
+const { SIMPLE_URL } = require("devtools/client/performance/test/helpers/urls");
+const { UI_ENABLE_ALLOCATIONS_PREF, UI_SHOW_IDLE_BLOCKS_PREF } = require("devtools/client/performance/test/helpers/prefs");
+const { initPerformanceInNewTab, teardownToolboxAndRemoveTab } = require("devtools/client/performance/test/helpers/panel-utils");
+const { startRecording, stopRecording } = require("devtools/client/performance/test/helpers/actions");
+const { once } = require("devtools/client/performance/test/helpers/event-utils");
+
+add_task(function* () {
+ let { panel } = yield initPerformanceInNewTab({
+ url: SIMPLE_URL,
+ win: window
+ });
+
+ let { EVENTS, DetailsView, MemoryFlameGraphView } = panel.panelWin;
+
+ // Enable allocations to test.
+ Services.prefs.setBoolPref(UI_ENABLE_ALLOCATIONS_PREF, true);
+ Services.prefs.setBoolPref(UI_SHOW_IDLE_BLOCKS_PREF, true);
+
+ yield startRecording(panel);
+ yield stopRecording(panel);
+
+ let rendered = once(MemoryFlameGraphView, EVENTS.UI_MEMORY_FLAMEGRAPH_RENDERED);
+ yield DetailsView.selectView("memory-flamegraph");
+ yield rendered;
+
+ rendered = once(MemoryFlameGraphView, EVENTS.UI_MEMORY_FLAMEGRAPH_RENDERED);
+ Services.prefs.setBoolPref(UI_SHOW_IDLE_BLOCKS_PREF, false);
+ yield rendered;
+ ok(true, "MemoryFlameGraphView rerendered when toggling show-idle-blocks.");
+
+ rendered = once(MemoryFlameGraphView, EVENTS.UI_MEMORY_FLAMEGRAPH_RENDERED);
+ Services.prefs.setBoolPref(UI_SHOW_IDLE_BLOCKS_PREF, true);
+ yield rendered;
+ ok(true, "MemoryFlameGraphView rerendered when toggling back show-idle-blocks.");
+
+ yield teardownToolboxAndRemoveTab(panel);
+});