Bug #61769 [Com]: Random failure of php_cli_server*phpt tests

From: Date: Fri, 04 May 2012 22:34:37 +0000
Subject: Bug #61769 [Com]: Random failure of php_cli_server*phpt tests
References: 1  Groups: php.bugs 
Request: Send a blank email to php-bugs+get-170194@lists.php.net to get a copy of this message
Edit report at https://bugs.php.net/bug.php?id=61769&edit=1

 ID:                 61769
 Comment by:         mattficken@php.net
 Reported by:        mattficken@php.net
 Summary:            Random failure of php_cli_server*phpt tests
 Status:             Open
 Type:               Bug
 Package:            Built-in web server
 PHP Version:        5.4.0
 Block user comment: N
 Private report:     N

 New Comment:

My newest patch fixes the remaining problems with these tests on Windows.

Using the attached script, I've run all the php_cli_server*phpt tests on Windows and Gentoo
Linux 500 times without any failure (using php-5.4 r31ab04e).


Previous Comments:
------------------------------------------------------------------------
[2012-05-04 22:31:47] mattficken@php.net

The following patch has been added/updated:

Patch Name: 61769.patch.txt
Revision:   1336170707
URL:        https://bugs.php.net/patch-display.php?bug=61769&patch=61769.patch.txt&revision=1336170707

------------------------------------------------------------------------
[2012-05-04 22:20:55] mattficken@php.net

<?php

// this script executes all 17 php_cli_server*phpt tests using run-tests.php
// 500 times and counts up the test failures

$php = "c:\php-sdk\php-src-PHP-5.4-31ab04e\Release_TS\php.exe";



// note: script assumes run from within test-pack root

$fh = fopen("cli_server_tests.txt", 'w');
fwrite($fh, "Sapi/cli/tests/php_cli_server_001.phpt".PHP_EOL);
fwrite($fh, "Sapi/cli/tests/php_cli_server_002.phpt".PHP_EOL);
fwrite($fh, "Sapi/cli/tests/php_cli_server_003.phpt".PHP_EOL);
fwrite($fh, "Sapi/cli/tests/php_cli_server_004.phpt".PHP_EOL);
fwrite($fh, "Sapi/cli/tests/php_cli_server_005.phpt".PHP_EOL);
fwrite($fh, "Sapi/cli/tests/php_cli_server_006.phpt".PHP_EOL);
fwrite($fh, "Sapi/cli/tests/php_cli_server_007.phpt".PHP_EOL);
fwrite($fh, "Sapi/cli/tests/php_cli_server_008.phpt".PHP_EOL);
fwrite($fh, "Sapi/cli/tests/php_cli_server_009.phpt".PHP_EOL);
fwrite($fh, "Sapi/cli/tests/php_cli_server_010.phpt".PHP_EOL);
fwrite($fh, "Sapi/cli/tests/php_cli_server_011.phpt".PHP_EOL);
fwrite($fh, "Sapi/cli/tests/php_cli_server_012.phpt".PHP_EOL);
fwrite($fh, "Sapi/cli/tests/php_cli_server_013.phpt".PHP_EOL);
fwrite($fh, "Sapi/cli/tests/php_cli_server_014.phpt".PHP_EOL);
fwrite($fh, "Sapi/cli/tests/php_cli_server_015.phpt".PHP_EOL);
fwrite($fh, "Sapi/cli/tests/php_cli_server_016.phpt".PHP_EOL);
fwrite($fh, "Sapi/cli/tests/php_cli_server_017.phpt".PHP_EOL);
fclose($fh);

function count_run_test_failures() {
	global $php;
	
	$lines = array();
	exec("set TEST_PHP_EXECUTABLE=$php & $php run-test.php -r cli_server_tests.txt &
exit", $lines);
	
	// parse $lines for
	$failure_count = 0;
	foreach ($lines as $line) {
		// "Tests failed    :    3 ( 17.6%) ( 17.6%)"
		preg_match("/Tests failed    : .+ (\d)+ .+/", $line, $m);
		
		if (count($m)==2) {
			$failure_count = $m[1] + 0; // to int
			break;
		}
	}
	//sleep(50);
	
	return $failure_count;
}

//var_dump(count_run_test_failures());
//exit;

$run_count = 0;
$total_failures = 0;
while ( $run_count < 500 ) {
	$failure_count = count_run_test_failures();
	$total_failures += $failure_count;
	
	if ($failure_count != 0) {
		echo "$failure_count fails $total_failures total" . PHP_EOL;
	} else {
		echo "pass $run_count run" . PHP_EOL;
	}

	$run_count++;
}

$avg_fails = $total_failures / $run_count;

echo "Total Failures $total_failures Runs $run_count Avg fails $avg_fails" . PHP_EOL;
echo " * 17 individual phpts for each run " . PHP_EOL;

?>

------------------------------------------------------------------------
[2012-04-20 09:14:52] ab@php.net

Matt, what i mean SO_REUSEADDR is defined on any Windows, see http://msdn.microsoft.com/en-us/library/windows/desktop/ms740621(v=vs.85).aspx
, as well as any other popular platform like gnu/bsd/solaris. And if it's defined, the piece of
code with setsockopt is compiled and the option is set disregarding it's compiled with or
without the wrapping #ifdef. Otherwise, if it were not defined, there were a compile error when you
remove the wrapping #ifdef. That's why i wonder it changes something, because there is really
no difference.

------------------------------------------------------------------------
[2012-04-19 23:26:33] mattficken@php.net

Setting SO_REUSEADDR socket option will not only make sure all the tests pass every time, but also
if user restarts the web server, it will make sure the web server can listen on that port when it
restarts.

Most TCP servers set SO_REUSEADDR option.

This is a real problem on Windows and Linux and probably *BSD. Fixing it for those platforms is
worth causing a minor compile problem for some weird os that doesn't have SO_REUSEADDR.

Alternatively, adding a sleep() call to the test after the web server exits should probably work,
but it would make the test very slow (might have to wait 60 seconds for each of 17 tests => 17
minutes).

------------------------------------------------------------------------
[2012-04-19 23:17:27] felipe@php.net

The test has been fixed in Git.

------------------------------------------------------------------------


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the rest of the comments, please view the bug report online at

    https://bugs.php.net/bug.php?id=61769


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