1 files changed, 35 insertions, 0 deletions
diff --git a/toolkit/devtools/timeline/test/browser_timeline_overview-initial-selection-02.js b/toolkit/devtools/timeline/test/browser_timeline_overview-initial-selection-02.js
new file mode 100644
index 000000000..8a7675c0f
--- /dev/null
+++ b/toolkit/devtools/timeline/test/browser_timeline_overview-initial-selection-02.js
@@ -0,0 +1,35 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+/**
+ * Tests if the overview has no initial selection when recording has finished
+ * and there is no data available.
+ */
+
+add_task(function*() {
+  let { target, panel } = yield initTimelinePanel(SIMPLE_URL);
+  let { $, EVENTS, TimelineView, TimelineController } = panel.panelWin;
+  let { OVERVIEW_INITIAL_SELECTION_RATIO: selectionRatio } = panel.panelWin;
+
+  $("#memory-checkbox").checked = true;
+  yield TimelineController.updateMemoryRecording();
+
+  yield TimelineController.toggleRecording();
+  ok(true, "Recording has started.");
+
+  yield TimelineController._stopRecordingAndDiscardData();
+  ok(true, "Recording has ended.");
+
+  let markers = TimelineController.getMarkers();
+  let memory = TimelineController.getMemory();
+  let selection = TimelineView.markersOverview.getSelection();
+
+  is(markers.length, 0,
+    "There are no markers available.");
+  is(memory.length, 0,
+    "There are no memory measurements available.");
+  is(selection.start, null,
+    "The initial selection start is correct.");
+  is(selection.end, null,
+    "The initial selection end is correct.");
+});