php – 无法测试Symfony2控制台命令
作者:互联网
作为学习Symfony2的一部分,我正在尝试编写一个非常简单的控制台命令,它只运行phpcs(PHP Code Sniffer).
这是执行函数,它在扩展ContainerAwareCommand的类中:
protected function execute(InputInterface $input, OutputInterface $output)
{
$output->writeln('<info>Generating PHP Code Sniffer report...</info>');
exec('phpcs ./src > ./app/logs/phpcs.log');
if ($input->getOption('noprompt') == null) {
$dialog = $this->getHelperSet()->get('dialog');
if ($dialog->askConfirmation($output, '<question>Open report in TextMate? (y/n)?</question>', false)) {
exec('mate ./app/logs/phpcs.log');
}
}
$output->writeln('<info>...done</info>');
}
我可以通过运行来执行控制台命令
app/console mynamespace:ci:phpcs
它完美无缺.输出文件按预期生成.
我正在尝试使用以下函数(它是PHPUnit_Framework_TestCase的一部分)来测试mynamespace:ci:phpcs命令:
public function testExecute()
{
$kernel = new \AppKernel("test", true);
$kernel->boot();
$application = new Application($kernel);
$application->add(new PhpCodeSnifferCommand());
$command = $application->find('mynamespace:ci:phpcs');
$commandTester = new CommandTester($command);
$commandTester->execute(array('command' => $command->getName()));
// ... Test if output file was created here ... ommitted for brevity ... //
}
但是,当尝试通过单元测试执行它时,它会失败并显示以下输出:
sh: phpcs: command not found
有谁知道为什么会这样?
PS:我确实观察过的一件事是,当我在命令中注释掉调用’exec’的行时,测试会通过(不通过,但不会抱怨phpcs不存在),所以问题肯定是exec命令.
PHPUnit测试是作为不同的用户运行的,phpcs不可用吗?
解决方法:
对于单元测试,您应该考虑模拟对exec()的调用.这将加速您的测试并避免诸如此类的环境问题.对于这种情况,您只需添加调用exec()的方法到您可以模拟测试的类.
class PhpCodeSnifferCommand extends ...
{
protected function execute(InputInterface $input, OutputInterface $output)
{
// ...
runReport();
// ...
viewReport();
// ...
}
protected function runReport() {
exec('phpcs ./src > ./app/logs/phpcs.log');
}
protected function viewReport() {
exec('mate ./app/logs/phpcs.log');
}
}
Mocking可以更轻松地验证三种可能的路径:
>该命令被告知不提示用户查看报告.
>命令被告知提示;用户说没有.
>命令被告知提示;用户说是的.
将每个路径放在自己的测试中.您可以将公共代码放入测试助手方法中,以使其更短.
public function testRunsReportWithoutAskingToView()
{
// ...
$application = new Application($kernel);
$phpcs = $this->getMock('PhpCodeSnifferCommand', array('runReport', 'viewReport'));
$phpcs->expects($this->once())->method('runReport');
$phpcs->expects($this->never())->method('viewReport');
$application->add($phpcs);
// Tell the command not to prompt to view the report ...
}
public function testRunsAndViewsReport()
{
// ...
$application = new Application($kernel);
$phpcs = $this->getMock('PhpCodeSnifferCommand', array('runReport', 'viewReport'));
$phpcs->expects($this->once())->method('runReport');
$phpcs->expects($this->once())->method('viewReport');
$application->add($phpcs);
// Tell the command to prompt to view and the dialog to hit "Y" for you ...
}
public function testRunsReportButDoesntViewIt()
{
// ...
$application = new Application($kernel);
$phpcs = $this->getMock('PhpCodeSnifferCommand', array('runReport', 'viewReport'));
$phpcs->expects($this->once())->method('runReport');
$phpcs->expects($this->never())->method('viewReport');
$application->add($phpcs);
// Tell the command to prompt to view and the dialog to hit "N" for you ...
}
标签:php,phpunit,symfony,codesniffer 来源: https://codeday.me/bug/20190621/1251447.html