public function testShouldNotHaveExtraPluginsByDefault()
{
    $extraPlugins = $this->element->getExtraPlugins();
    $this->assertTrue(empty($extraPlugins));
}

public function testExtraPluginAccessorsShouldProxyToDijitParams()
{
    $this->element->setExtraPlugins(array('undo', 'bold', 'italic'));
    $this->assertTrue($this->element->hasDijitParam('extraPlugins'));
    $this->assertTrue($this->element->hasExtraPlugin('bold'));
    $this->assertEquals($this->element->getDijitParam('extraPlugins'), $this->element->getExtraPlugins());

    $this->element->removeExtraPlugin('bold');
    $this->assertFalse($this->element->hasExtraPlugin('bold'), var_export($this->element->getExtraPlugins(), 1));
    $extraPlugins = $this->element->getDijitParam('extraPlugins');
    $this->assertNotContains('bold', $extraPlugins, var_export($extraPlugins, 1));
}