Toggle left diff on Shift+A

Feature: Issue 3926
Change-Id: Ia52334f2aefeae4b3f115e5779da3b61af25ba11

polygerrit-ui/app/elements/diff/gr-diff-view/gr-diff-view_test.html

diff --git a/polygerrit-ui/app/elements/diff/gr-diff-view/gr-diff-view_test.html b/polygerrit-ui/app/elements/diff/gr-diff-view/gr-diff-view_test.html
index ede18f6..0a4d6b6 100644
--- a/polygerrit-ui/app/elements/diff/gr-diff-view/gr-diff-view_test.html
+++ b/polygerrit-ui/app/elements/diff/gr-diff-view/gr-diff-view_test.html
@@ -47,6 +47,13 @@
       element = fixture('basic');
     });
 
+    test('toggle left diff with a hotkey', function() {
+      var toggleLeftDiffStub = sinon.stub(element.$.diff, 'toggleLeftDiff');
+      MockInteractions.pressAndReleaseKeyOn(element, 65, 'shift');  // 'a'
+      assert.isTrue(toggleLeftDiffStub.calledOnce);
+      toggleLeftDiffStub.restore();
+    });
+
     test('keyboard shortcuts', function() {
       element._changeNum = '42';
       element._patchRange = {