michael@0: /* Any copyright is dedicated to the Public Domain.
michael@0:    http://creativecommons.org/publicdomain/zero/1.0/ */
michael@0: 
michael@0: function test() {
michael@0:   let ss = Cc["@mozilla.org/browser/sessionstore;1"]
michael@0:                      .getService(Ci.nsISessionStore);
michael@0: 
michael@0:   let assertVisibilityDataEquals = function (val, msg) {
michael@0:     is(ss.getWindowValue(window, TabView.VISIBILITY_IDENTIFIER), val, msg);
michael@0:   }
michael@0: 
michael@0:   waitForExplicitFinish();
michael@0: 
michael@0:   ss.setWindowValue(window, window.TabView.VISIBILITY_IDENTIFIER, "null");
michael@0:   assertVisibilityDataEquals("null", "we start with <null>");
michael@0: 
michael@0:   showTabView(function () {
michael@0:     assertVisibilityDataEquals("true", "after showing visibility data is <true>");
michael@0: 
michael@0:     hideTabView(function () {
michael@0:       assertVisibilityDataEquals("false", "after hiding visibility data is <false>");
michael@0:       finish();
michael@0:     });
michael@0:   });
michael@0: }