1 files changed, 60 insertions, 0 deletions
diff --git a/devtools/client/canvasdebugger/test/browser_canvas-frontend-record-01.js b/devtools/client/canvasdebugger/test/browser_canvas-frontend-record-01.js
new file mode 100644
index 000000000..cd0358d3c
--- /dev/null
+++ b/devtools/client/canvasdebugger/test/browser_canvas-frontend-record-01.js
@@ -0,0 +1,60 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+/**
+ * Tests whether the frontend behaves correctly while reording a snapshot.
+ */
+
+function* ifTestingSupported() {
+  let { target, panel } = yield initCanvasDebuggerFrontend(SIMPLE_CANVAS_URL);
+  let { window, EVENTS, $, SnapshotsListView } = panel.panelWin;
+
+  yield reload(target);
+
+  is($("#record-snapshot").hasAttribute("checked"), false,
+    "The 'record snapshot' button should initially be unchecked.");
+  is($("#record-snapshot").hasAttribute("disabled"), false,
+    "The 'record snapshot' button should initially be enabled.");
+  is($("#record-snapshot").hasAttribute("hidden"), false,
+    "The 'record snapshot' button should now be visible.");
+
+  is(SnapshotsListView.itemCount, 0,
+    "There should be no items available in the snapshots list view.");
+  is(SnapshotsListView.selectedIndex, -1,
+    "There should be no selected item in the snapshots list view.");
+
+  let recordingStarted = once(window, EVENTS.SNAPSHOT_RECORDING_STARTED);
+  let recordingFinished = once(window, EVENTS.SNAPSHOT_RECORDING_FINISHED);
+  SnapshotsListView._onRecordButtonClick();
+
+  yield recordingStarted;
+  ok(true, "Started recording a snapshot of the animation loop.");
+
+  is($("#record-snapshot").getAttribute("checked"), "true",
+    "The 'record snapshot' button should now be checked.");
+  is($("#record-snapshot").hasAttribute("hidden"), false,
+    "The 'record snapshot' button should still be visible.");
+
+  is(SnapshotsListView.itemCount, 1,
+    "There should be one item available in the snapshots list view now.");
+  is(SnapshotsListView.selectedIndex, -1,
+    "There should be no selected item in the snapshots list view yet.");
+
+  yield recordingFinished;
+  ok(true, "Finished recording a snapshot of the animation loop.");
+
+  is($("#record-snapshot").hasAttribute("checked"), false,
+    "The 'record snapshot' button should now be unchecked.");
+  is($("#record-snapshot").hasAttribute("disabled"), false,
+    "The 'record snapshot' button should now be re-enabled.");
+  is($("#record-snapshot").hasAttribute("hidden"), false,
+    "The 'record snapshot' button should still be visible.");
+
+  is(SnapshotsListView.itemCount, 1,
+    "There should still be only one item available in the snapshots list view.");
+  is(SnapshotsListView.selectedIndex, 0,
+    "There should be one selected item in the snapshots list view now.");
+
+  yield teardown(panel);
+  finish();
+}