/**
* Test succeeds when no warnings are emitted externally, and original level is restored.
*/
public function testSilencer()
{
$before = error_reporting();
// Check warnings are suppressed correctly
Silencer::suppress();
@trigger_error('Test', E_USER_WARNING);
Silencer::restore();
// Check all parameters and return values are passed correctly in a silenced call.
$result = Silencer::call(function ($a, $b, $c) {
@trigger_error('Test', E_USER_WARNING);
return $a * $b * $c;
}, 2, 3, 4);
$this->assertEquals(24, $result);
// Check the error reporting setting was restored correctly
$this->assertEquals($before, error_reporting());
}
/**
* {@inheritDoc}
*/
private function hintCommonErrors($exception)
{
$io = $this->getIO();
Silencer::suppress();
try {
$composer = $this->getComposer(false, true);
if ($composer) {
$config = $composer->getConfig();
$minSpaceFree = 1024 * 1024;
if (($df = disk_free_space($dir = $config->get('home'))) !== false && $df < $minSpaceFree || ($df = disk_free_space($dir = $config->get('vendor-dir'))) !== false && $df < $minSpaceFree || ($df = disk_free_space($dir = sys_get_temp_dir())) !== false && $df < $minSpaceFree) {
$io->writeError('<error>The disk hosting ' . $dir . ' is full, this may be the cause of the following exception</error>', true, IOInterface::QUIET);
}
}
} catch (\Exception $e) {
}
Silencer::restore();
if (Platform::isWindows() && false !== strpos($exception->getMessage(), 'The system cannot find the path specified')) {
$io->writeError('<error>The following exception may be caused by a stale entry in your cmd.exe AutoRun</error>', true, IOInterface::QUIET);
$io->writeError('<error>Check https://getcomposer.org/doc/articles/troubleshooting.md#-the-system-cannot-find-the-path-specified-windows- for details</error>', true, IOInterface::QUIET);
}
if (false !== strpos($exception->getMessage(), 'fork failed - Cannot allocate memory')) {
$io->writeError('<error>The following exception is caused by a lack of memory and not having swap configured</error>', true, IOInterface::QUIET);
$io->writeError('<error>Check https://getcomposer.org/doc/articles/troubleshooting.md#proc-open-fork-failed-errors for details</error>', true, IOInterface::QUIET);
}
}
