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<?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Component\Process\Tests;
use Symfony\Component\Process\Exception\ProcessTimedOutException;
use Symfony\Component\Process\Process;
use Symfony\Component\Process\Exception\RuntimeException;
use Symfony\Component\Process\ProcessPipes;
/**
* @author Robert Schönthal <seroscho@googlemail.com>
*/
abstract class AbstractProcessTest extends \PHPUnit_Framework_TestCase
{
public function testThatProcessDoesNotThrowWarningDuringRun()
{
@trigger_error('Test Error', E_USER_NOTICE);
$process = $this->getProcess("php -r 'sleep(3)'");
$process->run();
$actualError = error_get_last();
$this->assertEquals('Test Error', $actualError['message']);
$this->assertEquals(E_USER_NOTICE, $actualError['type']);
}
/**
* @expectedException \Symfony\Component\Process\Exception\InvalidArgumentException
*/
public function testNegativeTimeoutFromConstructor()
{
$this->getProcess('', null, null, null, -1);
}
/**
* @expectedException \Symfony\Component\Process\Exception\InvalidArgumentException
*/
public function testNegativeTimeoutFromSetter()
{
$p = $this->getProcess('');
$p->setTimeout(-1);
}
public function testFloatAndNullTimeout()
{
$p = $this->getProcess('');
$p->setTimeout(10);
$this->assertSame(10.0, $p->getTimeout());
$p->setTimeout(null);
$this->assertNull($p->getTimeout());
$p->setTimeout(0.0);
$this->assertNull($p->getTimeout());
}
public function testStopWithTimeoutIsActuallyWorking()
{
$this->verifyPosixIsEnabled();
// exec is mandatory here since we send a signal to the process
// see https://github.com/symfony/symfony/issues/5030 about prepending
// command with exec
$p = $this->getProcess('exec php '.__DIR__.'/NonStopableProcess.php 3');
$p->start();
usleep(100000);
$start = microtime(true);
$p->stop(1.1, SIGKILL);
while ($p->isRunning()) {
usleep(1000);
}
$duration = microtime(true) - $start;
$this->assertLessThan(1.8, $duration);
}
public function testAllOutputIsActuallyReadOnTermination()
{
// this code will result in a maximum of 2 reads of 8192 bytes by calling
// start() and isRunning(). by the time getOutput() is called the process
// has terminated so the internal pipes array is already empty. normally
// the call to start() will not read any data as the process will not have
// generated output, but this is non-deterministic so we must count it as
// a possibility. therefore we need 2 * ProcessPipes::CHUNK_SIZE plus
// another byte which will never be read.
$expectedOutputSize = ProcessPipes::CHUNK_SIZE * 2 + 2;
$code = sprintf('echo str_repeat(\'*\', %d);', $expectedOutputSize);
$p = $this->getProcess(sprintf('php -r %s', escapeshellarg($code)));
$p->start();
// Let's wait enough time for process to finish...
// Here we don't call Process::run or Process::wait to avoid any read of pipes
usleep(500000);
if ($p->isRunning()) {
$this->markTestSkipped('Process execution did not complete in the required time frame');
}
$o = $p->getOutput();
$this->assertEquals($expectedOutputSize, strlen($o));
}
public function testCallbacksAreExecutedWithStart()
{
$data = '';
$process = $this->getProcess('echo foo && php -r "sleep(1);" && echo foo');
$process->start(function ($type, $buffer) use (&$data) {
$data .= $buffer;
});
while ($process->isRunning()) {
usleep(10000);
}
$this->assertEquals(2, preg_match_all('/foo/', $data, $matches));
}
/**
* tests results from sub processes
*
* @dataProvider responsesCodeProvider
*/
public function testProcessResponses($expected, $getter, $code)
{
$p = $this->getProcess(sprintf('php -r %s', escapeshellarg($code)));
$p->run();
$this->assertSame($expected, $p->$getter());
}
/**
* tests results from sub processes
*
* @dataProvider pipesCodeProvider
*/
public function testProcessPipes($code, $size)
{
$expected = str_repeat(str_repeat('*', 1024), $size) . '!';
$expectedLength = (1024 * $size) + 1;
$p = $this->getProcess(sprintf('php -r %s', escapeshellarg($code)));
$p->setStdin($expected);
$p->run();
$this->assertEquals($expectedLength, strlen($p->getOutput()));
$this->assertEquals($expectedLength, strlen($p->getErrorOutput()));
}
public function chainedCommandsOutputProvider()
{
if (defined('PHP_WINDOWS_VERSION_BUILD')) {
return array(
array("2 \r\n2\r\n", '&&', '2')
);
}
return array(
array("1\n1\n", ';', '1'),
array("2\n2\n", '&&', '2'),
);
}
/**
*
* @dataProvider chainedCommandsOutputProvider
*/
public function testChainedCommandsOutput($expected, $operator, $input)
{
$process = $this->getProcess(sprintf('echo %s %s echo %s', $input, $operator, $input));
$process->run();
$this->assertEquals($expected, $process->getOutput());
}
public function testCallbackIsExecutedForOutput()
{
$p = $this->getProcess(sprintf('php -r %s', escapeshellarg('echo \'foo\';')));
$called = false;
$p->run(function ($type, $buffer) use (&$called) {
$called = $buffer === 'foo';
});
$this->assertTrue($called, 'The callback should be executed with the output');
}
public function testGetErrorOutput()
{
$p = $this->getProcess(sprintf('php -r %s', escapeshellarg('$n = 0; while ($n < 3) { file_put_contents(\'php://stderr\', \'ERROR\'); $n++; }')));
$p->run();
$this->assertEquals(3, preg_match_all('/ERROR/', $p->getErrorOutput(), $matches));
}
public function testGetIncrementalErrorOutput()
{
$p = $this->getProcess(sprintf('php -r %s', escapeshellarg('$n = 0; while ($n < 3) { usleep(100000); file_put_contents(\'php://stderr\', \'ERROR\'); $n++; }')));
$p->start();
while ($p->isRunning()) {
$this->assertLessThanOrEqual(1, preg_match_all('/ERROR/', $p->getIncrementalErrorOutput(), $matches));
usleep(20000);
}
}
public function testFlushErrorOutput()
{
$p = $this->getProcess(sprintf('php -r %s', escapeshellarg('$n = 0; while ($n < 3) { file_put_contents(\'php://stderr\', \'ERROR\'); $n++; }')));
$p->run();
$p->clearErrorOutput();
$this->assertEmpty($p->getErrorOutput());
}
public function testGetOutput()
{
$p = $this->getProcess(sprintf('php -r %s', escapeshellarg('$n=0;while ($n<3) {echo \' foo \';$n++; usleep(500); }')));
$p->run();
$this->assertEquals(3, preg_match_all('/foo/', $p->getOutput(), $matches));
}
public function testGetIncrementalOutput()
{
$p = $this->getProcess(sprintf('php -r %s', escapeshellarg('$n=0;while ($n<3) { echo \' foo \'; usleep(50000); $n++; }')));
$p->start();
while ($p->isRunning()) {
$this->assertLessThanOrEqual(1, preg_match_all('/foo/', $p->getIncrementalOutput(), $matches));
usleep(20000);
}
}
public function testFlushOutput()
{
$p = $this->getProcess(sprintf('php -r %s', escapeshellarg('$n=0;while ($n<3) {echo \' foo \';$n++;}')));
$p->run();
$p->clearOutput();
$this->assertEmpty($p->getOutput());
}
public function testExitCodeCommandFailed()
{
if (defined('PHP_WINDOWS_VERSION_BUILD')) {
$this->markTestSkipped('Windows does not support POSIX exit code');
}
// such command run in bash return an exitcode 127
$process = $this->getProcess('nonexistingcommandIhopeneversomeonewouldnameacommandlikethis');
$process->run();
$this->assertGreaterThan(0, $process->getExitCode());
}
public function testTTYCommand()
{
if (defined('PHP_WINDOWS_VERSION_BUILD')) {
$this->markTestSkipped('Windows does have /dev/tty support');
}
$process = $this->getProcess('echo "foo" >> /dev/null && php -r "usleep(100000);"');
$process->setTTY(true);
$process->start();
$this->assertTrue($process->isRunning());
$process->wait();
$this->assertSame(Process::STATUS_TERMINATED, $process->getStatus());
}
public function testTTYCommandExitCode()
{
if (defined('PHP_WINDOWS_VERSION_BUILD')) {
$this->markTestSkipped('Windows does have /dev/tty support');
}
$process = $this->getProcess('echo "foo" >> /dev/null');
$process->setTTY(true);
$process->run();
$this->assertTrue($process->isSuccessful());
}
public function testExitCodeTextIsNullWhenExitCodeIsNull()
{
$process = $this->getProcess('');
$this->assertNull($process->getExitCodeText());
}
public function testExitCodeText()
{
$process = $this->getProcess('');
$r = new \ReflectionObject($process);
$p = $r->getProperty('exitcode');
$p->setAccessible(true);
$p->setValue($process, 2);
$this->assertEquals('Misuse of shell builtins', $process->getExitCodeText());
}
public function testStartIsNonBlocking()
{
$process = $this->getProcess('php -r "usleep(500000);"');
$start = microtime(true);
$process->start();
$end = microtime(true);
$this->assertLessThan(0.2, $end-$start);
$process->wait();
}
public function testUpdateStatus()
{
$process = $this->getProcess('php -h');
$process->run();
$this->assertTrue(strlen($process->getOutput()) > 0);
}
public function testGetExitCodeIsNullOnStart()
{
$process = $this->getProcess('php -r "usleep(200000);"');
$this->assertNull($process->getExitCode());
$process->start();
$this->assertNull($process->getExitCode());
$process->wait();
$this->assertEquals(0, $process->getExitCode());
}
public function testGetExitCodeIsNullOnWhenStartingAgain()
{
$process = $this->getProcess('php -r "usleep(200000);"');
$process->run();
$this->assertEquals(0, $process->getExitCode());
$process->start();
$this->assertNull($process->getExitCode());
$process->wait();
$this->assertEquals(0, $process->getExitCode());
}
public function testGetExitCode()
{
$process = $this->getProcess('php -m');
$process->run();
$this->assertSame(0, $process->getExitCode());
}
public function testStatus()
{
$process = $this->getProcess('php -r "usleep(500000);"');
$this->assertFalse($process->isRunning());
$this->assertFalse($process->isStarted());
$this->assertFalse($process->isTerminated());
$this->assertSame(Process::STATUS_READY, $process->getStatus());
$process->start();
$this->assertTrue($process->isRunning());
$this->assertTrue($process->isStarted());
$this->assertFalse($process->isTerminated());
$this->assertSame(Process::STATUS_STARTED, $process->getStatus());
$process->wait();
$this->assertFalse($process->isRunning());
$this->assertTrue($process->isStarted());
$this->assertTrue($process->isTerminated());
$this->assertSame(Process::STATUS_TERMINATED, $process->getStatus());
}
public function testStop()
{
$process = $this->getProcess('php -r "sleep(4);"');
$process->start();
$this->assertTrue($process->isRunning());
$process->stop();
$this->assertFalse($process->isRunning());
}
public function testIsSuccessful()
{
$process = $this->getProcess('php -m');
$process->run();
$this->assertTrue($process->isSuccessful());
}
public function testIsSuccessfulOnlyAfterTerminated()
{
$process = $this->getProcess('php -r "sleep(1);"');
$process->start();
while ($process->isRunning()) {
$this->assertFalse($process->isSuccessful());
usleep(300000);
}
$this->assertTrue($process->isSuccessful());
}
public function testIsNotSuccessful()
{
$process = $this->getProcess('php -r "usleep(500000);throw new \Exception(\'BOUM\');"');
$process->start();
$this->assertTrue($process->isRunning());
$process->wait();
$this->assertFalse($process->isSuccessful());
}
public function testProcessIsNotSignaled()
{
if (defined('PHP_WINDOWS_VERSION_BUILD')) {
$this->markTestSkipped('Windows does not support POSIX signals');
}
$process = $this->getProcess('php -m');
$process->run();
$this->assertFalse($process->hasBeenSignaled());
}
public function testProcessWithoutTermSignalIsNotSignaled()
{
if (defined('PHP_WINDOWS_VERSION_BUILD')) {
$this->markTestSkipped('Windows does not support POSIX signals');
}
$process = $this->getProcess('php -m');
$process->run();
$this->assertFalse($process->hasBeenSignaled());
}
public function testProcessWithoutTermSignal()
{
if (defined('PHP_WINDOWS_VERSION_BUILD')) {
$this->markTestSkipped('Windows does not support POSIX signals');
}
$process = $this->getProcess('php -m');
$process->run();
$this->assertEquals(0, $process->getTermSignal());
}
public function testProcessIsSignaledIfStopped()
{
if (defined('PHP_WINDOWS_VERSION_BUILD')) {
$this->markTestSkipped('Windows does not support POSIX signals');
}
$process = $this->getProcess('php -r "sleep(4);"');
$process->start();
$process->stop();
$this->assertTrue($process->hasBeenSignaled());
}
public function testProcessWithTermSignal()
{
if (defined('PHP_WINDOWS_VERSION_BUILD')) {
$this->markTestSkipped('Windows does not support POSIX signals');
}
// SIGTERM is only defined if pcntl extension is present
$termSignal = defined('SIGTERM') ? SIGTERM : 15;
$process = $this->getProcess('php -r "sleep(4);"');
$process->start();
$process->stop();
$this->assertEquals($termSignal, $process->getTermSignal());
}
public function testProcessThrowsExceptionWhenExternallySignaled()
{
if (defined('PHP_WINDOWS_VERSION_BUILD')) {
$this->markTestSkipped('Windows does not support POSIX signals');
}
if (!function_exists('posix_kill')) {
$this->markTestSkipped('posix_kill is required for this test');
}
$termSignal = defined('SIGKILL') ? SIGKILL : 9;
$process = $this->getProcess('exec php -r "while (true) {}"');
$process->start();
posix_kill($process->getPid(), $termSignal);
$this->setExpectedException('Symfony\Component\Process\Exception\RuntimeException', 'The process has been signaled with signal "9".');
$process->wait();
}
public function testRestart()
{
$process1 = $this->getProcess('php -r "echo getmypid();"');
$process1->run();
$process2 = $process1->restart();
$process2->wait(); // wait for output
// Ensure that both processed finished and the output is numeric
$this->assertFalse($process1->isRunning());
$this->assertFalse($process2->isRunning());
$this->assertTrue(is_numeric($process1->getOutput()));
$this->assertTrue(is_numeric($process2->getOutput()));
// Ensure that restart returned a new process by check that the output is different
$this->assertNotEquals($process1->getOutput(), $process2->getOutput());
}
public function testPhpDeadlock()
{
$this->markTestSkipped('Can course PHP to hang');
// Sleep doesn't work as it will allow the process to handle signals and close
// file handles from the other end.
$process = $this->getProcess('php -r "while (true) {}"');
$process->start();
// PHP will deadlock when it tries to cleanup $process
}
public function testRunProcessWithTimeout()
{
$timeout = 0.5;
$process = $this->getProcess('php -r "usleep(600000);"');
$process->setTimeout($timeout);
$start = microtime(true);
try {
$process->run();
$this->fail('A RuntimeException should have been raised');
} catch (RuntimeException $e) {
}
$duration = microtime(true) - $start;
$this->assertLessThan($timeout + Process::TIMEOUT_PRECISION, $duration);
}
public function testCheckTimeoutOnNonStartedProcess()
{
$process = $this->getProcess('php -r "sleep(3);"');
$process->checkTimeout();
}
public function testCheckTimeoutOnTerminatedProcess()
{
$process = $this->getProcess('php -v');
$process->run();
$process->checkTimeout();
}
public function testCheckTimeoutOnStartedProcess()
{
$timeout = 0.5;
$precision = 100000;
$process = $this->getProcess('php -r "sleep(3);"');
$process->setTimeout($timeout);
$start = microtime(true);
$process->start();
try {
while ($process->isRunning()) {
$process->checkTimeout();
usleep($precision);
}
$this->fail('A RuntimeException should have been raised');
} catch (RuntimeException $e) {
}
$duration = microtime(true) - $start;
$this->assertLessThan($timeout + $precision, $duration);
$this->assertFalse($process->isSuccessful());
}
/**
* @group idle-timeout
*/
public function testIdleTimeout()
{
$process = $this->getProcess('sleep 3');
$process->setTimeout(10);
$process->setIdleTimeout(1);
try {
$process->run();
$this->fail('A timeout exception was expected.');
} catch (ProcessTimedOutException $ex) {
$this->assertTrue($ex->isIdleTimeout());
$this->assertFalse($ex->isGeneralTimeout());
$this->assertEquals(1.0, $ex->getExceededTimeout());
}
}
/**
* @group idle-timeout
*/
public function testIdleTimeoutNotExceededWhenOutputIsSent()
{
$process = $this->getProcess('echo "foo" && sleep 1 && echo "foo" && sleep 1 && echo "foo" && sleep 1 && echo "foo" && sleep 5');
$process->setTimeout(5);
$process->setIdleTimeout(3);
try {
$process->run();
$this->fail('A timeout exception was expected.');
} catch (ProcessTimedOutException $ex) {
$this->assertTrue($ex->isGeneralTimeout());
$this->assertFalse($ex->isIdleTimeout());
$this->assertEquals(5.0, $ex->getExceededTimeout());
}
}
public function testStartAfterATimeout()
{
$process = $this->getProcess('php -r "$n = 1000; while ($n--) {echo \'\'; usleep(1000); }"');
$process->setTimeout(0.1);
try {
$process->run();
$this->fail('An exception should have been raised.');
} catch (\Exception $e) {
}
$process->start();
usleep(10000);
$process->stop();
}
public function testGetPid()
{
$process = $this->getProcess('php -r "usleep(500000);"');
$process->start();
$this->assertGreaterThan(0, $process->getPid());
$process->wait();
}
public function testGetPidIsNullBeforeStart()
{
$process = $this->getProcess('php -r "sleep(1);"');
$this->assertNull($process->getPid());
}
public function testGetPidIsNullAfterRun()
{
$process = $this->getProcess('php -m');
$process->run();
$this->assertNull($process->getPid());
}
public function testSignal()
{
$this->verifyPosixIsEnabled();
$process = $this->getProcess('exec php -f ' . __DIR__ . '/SignalListener.php');
$process->start();
usleep(500000);
$process->signal(SIGUSR1);
while ($process->isRunning() && false === strpos($process->getoutput(), 'Caught SIGUSR1')) {
usleep(10000);
}
$this->assertEquals('Caught SIGUSR1', $process->getOutput());
}
public function testExitCodeIsAvailableAfterSignal()
{
$this->verifyPosixIsEnabled();
$process = $this->getProcess('sleep 4');
$process->start();
$process->signal(SIGKILL);
while ($process->isRunning()) {
usleep(10000);
}
$this->assertFalse($process->isRunning());
$this->assertTrue($process->hasBeenSignaled());
$this->assertFalse($process->isSuccessful());
$this->assertEquals(137, $process->getExitCode());
}
/**
* @expectedException \Symfony\Component\Process\Exception\LogicException
*/
public function testSignalProcessNotRunning()
{
$this->verifyPosixIsEnabled();
$process = $this->getProcess('php -m');
$process->signal(SIGHUP);
}
/**
* @dataProvider provideMethodsThatNeedARunningProcess
*/
public function testMethodsThatNeedARunningProcess($method)
{
$process = $this->getProcess('php -m');
$this->setExpectedException('Symfony\Component\Process\Exception\LogicException', sprintf('Process must be started before calling %s.', $method));
call_user_func(array($process, $method));
}
public function provideMethodsThatNeedARunningProcess()
{
return array(
array('getOutput'),
array('getIncrementalOutput'),
array('getErrorOutput'),
array('getIncrementalErrorOutput'),
array('wait'),
);
}
/**
* @dataProvider provideMethodsThatNeedATerminatedProcess
*/
public function testMethodsThatNeedATerminatedProcess($method)
{
$process = $this->getProcess('php -r "sleep(1);"');
$process->start();
try {
call_user_func(array($process, $method));
$process->stop(0);
$this->fail('A LogicException must have been thrown');
} catch (\Exception $e) {
$this->assertInstanceOf('Symfony\Component\Process\Exception\LogicException', $e);
$this->assertEquals(sprintf('Process must be terminated before calling %s.', $method), $e->getMessage());
}
$process->stop(0);
}
public function provideMethodsThatNeedATerminatedProcess()
{
return array(
array('hasBeenSignaled'),
array('getTermSignal'),
array('hasBeenStopped'),
array('getStopSignal'),
);
}
private function verifyPosixIsEnabled()
{
if (defined('PHP_WINDOWS_VERSION_BUILD')) {
$this->markTestSkipped('POSIX signals do not work on Windows');
}
if (!defined('SIGUSR1')) {
$this->markTestSkipped('The pcntl extension is not enabled');
}
}
/**
* @expectedException \Symfony\Component\Process\Exception\RuntimeException
*/
public function testSignalWithWrongIntSignal()
{
if (defined('PHP_WINDOWS_VERSION_BUILD')) {
$this->markTestSkipped('POSIX signals do not work on Windows');
}
$process = $this->getProcess('php -r "sleep(3);"');
$process->start();
$process->signal(-4);
}
/**
* @expectedException \Symfony\Component\Process\Exception\RuntimeException
*/
public function testSignalWithWrongNonIntSignal()
{
if (defined('PHP_WINDOWS_VERSION_BUILD')) {
$this->markTestSkipped('POSIX signals do not work on Windows');
}
$process = $this->getProcess('php -r "sleep(3);"');
$process->start();
$process->signal('Céphalopodes');
}
public function responsesCodeProvider()
{
return array(
//expected output / getter / code to execute
//array(1,'getExitCode','exit(1);'),
//array(true,'isSuccessful','exit();'),
array('output', 'getOutput', 'echo \'output\';'),
);
}
public function pipesCodeProvider()
{
$variations = array(
'fwrite(STDOUT, $in = file_get_contents(\'php://stdin\')); fwrite(STDERR, $in);',
'include \''.__DIR__.'/PipeStdinInStdoutStdErrStreamSelect.php\';',
);
if (defined('PHP_WINDOWS_VERSION_BUILD')) {
// Avoid XL buffers on Windows because of https://bugs.php.net/bug.php?id=65650
$sizes = array(1, 2, 4, 8);
} else {
$sizes = array(1, 16, 64, 1024, 4096);
}
$codes = array();
foreach ($sizes as $size) {
foreach ($variations as $code) {
$codes[] = array($code, $size);
}
}
return $codes;
}
/**
* provides default method names for simple getter/setter
*/
public function methodProvider()
{
$defaults = array(
array('CommandLine'),
array('Timeout'),
array('WorkingDirectory'),
array('Env'),
array('Stdin'),
array('Options')
);
return $defaults;
}
/**
* @param string $commandline
* @param null $cwd
* @param array $env
* @param null $stdin
* @param integer $timeout
* @param array $options
*
* @return Process
*/
abstract protected function getProcess($commandline, $cwd = null, array $env = null, $stdin = null, $timeout = 60, array $options = array());
}
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