michael@0: // this automatically sets the test plugin to be enabled (not e.g. click-to-play)
michael@0: // and resets this afterwards
michael@0: 
michael@0: (function() {
michael@0:   function getTestPlugin(aPluginName) {
michael@0:     var ph = SpecialPowers.Cc["@mozilla.org/plugin/host;1"]
michael@0:                           .getService(SpecialPowers.Ci.nsIPluginHost);
michael@0:     var tags = ph.getPluginTags();
michael@0:     for (var tag of tags) {
michael@0:       if (tag.name == aPluginName) {
michael@0:        return tag;
michael@0:       }
michael@0:     }
michael@0: 
michael@0:     ok(false, "Could not find plugin tag with plugin name '" + name + "'");
michael@0:     return null;
michael@0:   }
michael@0: 
michael@0:   var plugin = getTestPlugin("Test Plug-in");
michael@0:   var oldEnabledState = plugin.enabledState;
michael@0:   plugin.enabledState = SpecialPowers.Ci.nsIPluginTag.STATE_ENABLED;
michael@0:   SimpleTest.registerCleanupFunction(function() {
michael@0:     getTestPlugin("Test Plug-in").enabledState = oldEnabledState;
michael@0:   });
michael@0: })();