Chris@0: <?php
Chris@0: 
Chris@0: /*
Chris@0:  * This file is part of Psy Shell.
Chris@0:  *
Chris@0:  * (c) 2012-2017 Justin Hileman
Chris@0:  *
Chris@0:  * For the full copyright and license information, please view the LICENSE
Chris@0:  * file that was distributed with this source code.
Chris@0:  */
Chris@0: 
Chris@0: namespace Psy\Test\CodeCleaner;
Chris@0: 
Chris@0: use PhpParser\NodeTraverser;
Chris@0: use Psy\CodeCleaner\LoopContextPass;
Chris@0: 
Chris@0: class LoopContextPassTest extends CodeCleanerTestCase
Chris@0: {
Chris@0:     public function setUp()
Chris@0:     {
Chris@0:         $this->pass      = new LoopContextPass();
Chris@0:         $this->traverser = new NodeTraverser();
Chris@0:         $this->traverser->addVisitor($this->pass);
Chris@0:     }
Chris@0: 
Chris@0:     /**
Chris@0:      * @dataProvider invalidStatements
Chris@0:      * @expectedException \Psy\Exception\FatalErrorException
Chris@0:      */
Chris@0:     public function testProcessStatementFails($code)
Chris@0:     {
Chris@0:         $stmts = $this->parse($code);
Chris@0:         $this->traverser->traverse($stmts);
Chris@0:     }
Chris@0: 
Chris@0:     public function invalidStatements()
Chris@0:     {
Chris@0:         return array(
Chris@0:             array('continue'),
Chris@0:             array('break'),
Chris@0:             array('if (true) { continue; }'),
Chris@0:             array('if (true) { break; }'),
Chris@0:             array('if (false) { continue; }'),
Chris@0:             array('if (false) { break; }'),
Chris@0:             array('function foo() { break; }'),
Chris@0:             array('function foo() { continue; }'),
Chris@0: 
Chris@0:             // actually enforce break/continue depth argument
Chris@0:             array('do { break 2; } while (true)'),
Chris@0:             array('do { continue 2; } while (true)'),
Chris@0:             array('for ($a; $b; $c) { break 2; }'),
Chris@0:             array('for ($a; $b; $c) { continue 2; }'),
Chris@0:             array('foreach ($a as $b) { break 2; }'),
Chris@0:             array('foreach ($a as $b) { continue 2; }'),
Chris@0:             array('switch (true) { default: break 2; }'),
Chris@0:             array('switch (true) { default: continue 2; }'),
Chris@0:             array('while (true) { break 2; }'),
Chris@0:             array('while (true) { continue 2; }'),
Chris@0: 
Chris@0:             // invalid in 5.4+ because they're floats
Chris@0:             // ... in 5.3 because the number is too big
Chris@0:             array('while (true) { break 2.0; }'),
Chris@0:             array('while (true) { continue 2.0; }'),
Chris@0: 
Chris@0:             // and once with nested loops, just for good measure
Chris@0:             array('while (true) { while (true) { break 3; } }'),
Chris@0:             array('while (true) { while (true) { continue 3; } }'),
Chris@0:         );
Chris@0:     }
Chris@0: 
Chris@0:     /**
Chris@0:      * @dataProvider invalidPHP54Statements
Chris@0:      * @expectedException \Psy\Exception\FatalErrorException
Chris@0:      */
Chris@0:     public function testPHP54ProcessStatementFails($code)
Chris@0:     {
Chris@0:         if (version_compare(PHP_VERSION, '5.4.0', '<')) {
Chris@0:             $this->markTestSkipped();
Chris@0:         }
Chris@0: 
Chris@0:         $stmts = $this->parse($code);
Chris@0:         $this->traverser->traverse($stmts);
Chris@0:     }
Chris@0: 
Chris@0:     public function invalidPHP54Statements()
Chris@0:     {
Chris@0:         return array(
Chris@0:             // In PHP 5.4+, only positive literal integers are allowed
Chris@0:             array('while (true) { break $n; }'),
Chris@0:             array('while (true) { continue $n; }'),
Chris@0:             array('while (true) { break N; }'),
Chris@0:             array('while (true) { continue N; }'),
Chris@0:             array('while (true) { break 0; }'),
Chris@0:             array('while (true) { continue 0; }'),
Chris@0:             array('while (true) { break -1; }'),
Chris@0:             array('while (true) { continue -1; }'),
Chris@0:             array('while (true) { break 1.0; }'),
Chris@0:             array('while (true) { continue 1.0; }'),
Chris@0:         );
Chris@0:     }
Chris@0: 
Chris@0:     /**
Chris@0:      * @dataProvider validStatements
Chris@0:      */
Chris@0:     public function testProcessStatementPasses($code)
Chris@0:     {
Chris@0:         $stmts = $this->parse($code);
Chris@0:         $this->traverser->traverse($stmts);
Chris@0:     }
Chris@0: 
Chris@0:     public function validStatements()
Chris@0:     {
Chris@0:         return array(
Chris@0:             array('do { break; } while (true)'),
Chris@0:             array('do { continue; } while (true)'),
Chris@0:             array('for ($a; $b; $c) { break; }'),
Chris@0:             array('for ($a; $b; $c) { continue; }'),
Chris@0:             array('foreach ($a as $b) { break; }'),
Chris@0:             array('foreach ($a as $b) { continue; }'),
Chris@0:             array('switch (true) { default: break; }'),
Chris@0:             array('switch (true) { default: continue; }'),
Chris@0:             array('while (true) { break; }'),
Chris@0:             array('while (true) { continue; }'),
Chris@0: 
Chris@0:             // `break 1` is redundant, but not invalid
Chris@0:             array('while (true) { break 1; }'),
Chris@0:             array('while (true) { continue 1; }'),
Chris@0: 
Chris@0:             // and once with nested loops just for good measure
Chris@0:             array('while (true) { while (true) { break 2; } }'),
Chris@0:             array('while (true) { while (true) { continue 2; } }'),
Chris@0:         );
Chris@0:     }
Chris@0: }