public function assignAddsValueToInternalVariableCollection()
{
$view = $this->getAccessibleMock(Mvc\View\AbstractView::class, ['setControllerContext', 'render']);
$view->assign('foo', 'FooValue')->assign('bar', 'BarValue');
$expectedResult = ['foo' => 'FooValue', 'bar' => 'BarValue'];
$actualResult = $view->_get('variables');
$this->assertEquals($expectedResult, $actualResult);
}