1 files changed, 102 insertions, 0 deletions
diff --git a/devtools/client/performance/test/browser_perf-states.js b/devtools/client/performance/test/browser_perf-states.js
new file mode 100644
index 000000000..c01fb3121
--- /dev/null
+++ b/devtools/client/performance/test/browser_perf-states.js
@@ -0,0 +1,102 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+"use strict";
+
+/**
+ * Tests that view states and lazy component intialization works.
+ */
+
+const { SIMPLE_URL } = require("devtools/client/performance/test/helpers/urls");
+const { UI_ENABLE_MEMORY_PREF, UI_ENABLE_ALLOCATIONS_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");
+
+add_task(function* () {
+  let { panel } = yield initPerformanceInNewTab({
+    url: SIMPLE_URL,
+    win: window
+  });
+
+  let { PerformanceView, OverviewView, DetailsView } = panel.panelWin;
+
+  is(PerformanceView.getState(), "empty",
+    "The intial state of the performance panel view is correct.");
+
+  ok(!(OverviewView.graphs.get("timeline")),
+    "The markers graph should not have been created yet.");
+  ok(!(OverviewView.graphs.get("memory")),
+    "The memory graph should not have been created yet.");
+  ok(!(OverviewView.graphs.get("framerate")),
+    "The framerate graph should not have been created yet.");
+
+  ok(!DetailsView.components.waterfall.initialized,
+    "The waterfall detail view should not have been created yet.");
+  ok(!DetailsView.components["js-calltree"].initialized,
+    "The js-calltree detail view should not have been created yet.");
+  ok(!DetailsView.components["js-flamegraph"].initialized,
+    "The js-flamegraph detail view should not have been created yet.");
+  ok(!DetailsView.components["memory-calltree"].initialized,
+    "The memory-calltree detail view should not have been created yet.");
+  ok(!DetailsView.components["memory-flamegraph"].initialized,
+    "The memory-flamegraph detail view should not have been created yet.");
+
+  Services.prefs.setBoolPref(UI_ENABLE_MEMORY_PREF, true);
+  Services.prefs.setBoolPref(UI_ENABLE_ALLOCATIONS_PREF, true);
+
+  ok(!(OverviewView.graphs.get("timeline")),
+    "The markers graph should still not have been created yet.");
+  ok(!(OverviewView.graphs.get("memory")),
+    "The memory graph should still not have been created yet.");
+  ok(!(OverviewView.graphs.get("framerate")),
+    "The framerate graph should still not have been created yet.");
+
+  yield startRecording(panel);
+
+  is(PerformanceView.getState(), "recording",
+    "The current state of the performance panel view is 'recording'.");
+  ok(OverviewView.graphs.get("memory"),
+    "The memory graph should have been created now.");
+  ok(OverviewView.graphs.get("framerate"),
+    "The framerate graph should have been created now.");
+
+  yield stopRecording(panel);
+
+  is(PerformanceView.getState(), "recorded",
+    "The current state of the performance panel view is 'recorded'.");
+  ok(!DetailsView.components["js-calltree"].initialized,
+    "The js-calltree detail view should still not have been created yet.");
+  ok(!DetailsView.components["js-flamegraph"].initialized,
+    "The js-flamegraph detail view should still not have been created yet.");
+  ok(!DetailsView.components["memory-calltree"].initialized,
+    "The memory-calltree detail view should still not have been created yet.");
+  ok(!DetailsView.components["memory-flamegraph"].initialized,
+    "The memory-flamegraph detail view should still not have been created yet.");
+
+  yield DetailsView.selectView("js-calltree");
+
+  is(PerformanceView.getState(), "recorded",
+    "The current state of the performance panel view is still 'recorded'.");
+  ok(DetailsView.components["js-calltree"].initialized,
+    "The js-calltree detail view should still have been created now.");
+  ok(!DetailsView.components["js-flamegraph"].initialized,
+    "The js-flamegraph detail view should still not have been created yet.");
+  ok(!DetailsView.components["memory-calltree"].initialized,
+    "The memory-calltree detail view should still not have been created yet.");
+  ok(!DetailsView.components["memory-flamegraph"].initialized,
+    "The memory-flamegraph detail view should still not have been created yet.");
+
+  yield DetailsView.selectView("memory-calltree");
+
+  is(PerformanceView.getState(), "recorded",
+    "The current state of the performance panel view is still 'recorded'.");
+  ok(DetailsView.components["js-calltree"].initialized,
+    "The js-calltree detail view should still register as being created.");
+  ok(!DetailsView.components["js-flamegraph"].initialized,
+    "The js-flamegraph detail view should still not have been created yet.");
+  ok(DetailsView.components["memory-calltree"].initialized,
+    "The memory-calltree detail view should still have been created now.");
+  ok(!DetailsView.components["memory-flamegraph"].initialized,
+    "The memory-flamegraph detail view should still not have been created yet.");
+
+  yield teardownToolboxAndRemoveTab(panel);
+});