public function testCommandWithConfigCorrectConfig()
{
$this->assertAttributeEquals(['config_key' => 'config_value'], 'config', $this->command_stub_with_config);
$this->assertEquals(['config_key' => 'config_value'], $this->command_stub_with_config->getConfig(null));
$this->assertEquals(['config_key' => 'config_value'], $this->command_stub_with_config->getConfig());
$this->assertEquals('config_value', $this->command_stub_with_config->getConfig('config_key'));
$this->assertEquals(null, $this->command_stub_with_config->getConfig('not_config_key'));
}