public function testExecute()
{
$application = new Application();
$application->add(new ProviderCommand());
$command = $application->find('provider');
$commandTester = new CommandTester($command);
$commandTester->execute(['command' => $command->getName(), 'provider' => 'Acacha\\AdminLTETemplateLaravel\\app\\Providers\\AdminLTETemplateServiceProvider::class']);
$this->assertFileExists('config/app.php');
$this->assertTrue($this->laravelConfigFileHasContent('#llum_providers'));
$this->assertTrue($this->laravelConfigFileHasContent('#llum_aliases'));
$this->assertTrue($this->laravelConfigFileHasContent('Acacha\\AdminLTETemplateLaravel\\app\\Providers\\AdminLTETemplateServiceProvider::class'));
}