public function test_chdir()
{
try {
$shell = new Shell();
$dir = $shell->mktempdir();
$this->assertTrue(file_exists($dir), 'Temp dir was not created');
$success = $shell->chdir($dir);
$this->assertTrue($success, "Could not chdir {$dir}");
$non_existent_dir = "/a/non/existent/{$dir}";
// @ to prevent E_WARNING from being thrown
$failure = @$shell->chdir($non_existent_dir);
$this->assertFalse($failure, "chdir to {$non_existent_dir} should have failed");
@rmdir($dir);
// Clean up
} catch (\Exception $e) {
if ($dir) {
@rmdir($dir);
// Clean up
}
throw $e;
}
}