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<?php
/*
* This file is part of Psy Shell.
*
* (c) 2012-2015 Justin Hileman
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Psy\Test\CodeCleaner;
use PhpParser\NodeTraverser;
use Psy\CodeCleaner\FunctionReturnInWriteContextPass;
use Psy\Exception\FatalErrorException;
class FunctionReturnInWriteContextPassTest extends CodeCleanerTestCase
{
public function setUp()
{
$this->pass = new FunctionReturnInWriteContextPass();
$this->traverser = new NodeTraverser();
$this->traverser->addVisitor($this->pass);
}
/**
* @dataProvider invalidStatements
* @expectedException \Psy\Exception\FatalErrorException
* @expectedExceptionMessage Can't use function return value in write context
*/
public function testProcessStatementFails($code)
{
$stmts = $this->parse($code);
$this->traverser->traverse($stmts);
}
public function invalidStatements()
{
return array(
array('f(&g())'),
array('array(& $object->method())'),
array('$a->method(& $closure())'),
array('array(& A::b())'),
array('f() = 5'),
);
}
public function testIsset()
{
try {
$this->traverser->traverse($this->parse('isset(strtolower("A"))'));
$this->fail();
} catch (FatalErrorException $e) {
if (version_compare(PHP_VERSION, '5.5', '>=')) {
$this->assertContains(
'Cannot use isset() on the result of a function call (you can use "null !== func()" instead)',
$e->getMessage()
);
} else {
$this->assertContains("Can't use function return value in write context", $e->getMessage());
}
}
}
/**
* @expectedException \Psy\Exception\FatalErrorException
* @expectedExceptionMessage Can't use function return value in write context
*/
public function testEmpty()
{
if (version_compare(PHP_VERSION, '5.5', '>=')) {
$this->markTestSkipped();
}
$this->traverser->traverse($this->parse('empty(strtolower("A"))'));
}
}