www.aleph1.co.uk Git - yaffs-website/blob - vendor/psy/psysh/test/CodeCleaner/ListPassTest.php

   1 <?php
   2
   3 /*
   4  * This file is part of Psy Shell.
   5  *
   6  * (c) 2012-2018 Justin Hileman
   7  *
   8  * For the full copyright and license information, please view the LICENSE
   9  * file that was distributed with this source code.
  10  */
  11
  12 namespace Psy\Test\CodeCleaner;
  13
  14 use Psy\CodeCleaner\ListPass;
  15
  16 class ListPassTest extends CodeCleanerTestCase
  17 {
  18     public function setUp()
  19     {
  20         $this->setPass(new ListPass());
  21     }
  22
  23     /**
  24      * @dataProvider invalidStatements
  25      * @expectedException \Psy\Exception\ParseErrorException
  26      */
  27     public function testProcessInvalidStatement($code, $expectedMessage)
  28     {
  29         if (\method_exists($this, 'setExpectedException')) {
  30             $this->setExpectedException('Psy\Exception\ParseErrorException', $expectedMessage);
  31         } else {
  32             $this->expectExceptionMessage($expectedMessage);
  33         }
  34
  35         $stmts = $this->parse($code);
  36         $this->traverser->traverse($stmts);
  37     }
  38
  39     public function invalidStatements()
  40     {
  41         // Not typo.  It is ambiguous whether "Syntax" or "syntax".
  42         $errorShortListAssign = "yntax error, unexpected '='";
  43         $errorEmptyList = 'Cannot use empty list';
  44         $errorAssocListAssign = 'Syntax error, unexpected T_CONSTANT_ENCAPSED_STRING, expecting \',\' or \')\'';
  45         $errorNonVariableAssign = 'Assignments can only happen to writable values';
  46         $errorPhpParserSyntax = 'PHP Parse error: Syntax error, unexpected';
  47
  48         $invalidExpr = [
  49             ['list() = array()', $errorEmptyList],
  50             ['list("a") = array(1)', $errorPhpParserSyntax],
  51         ];
  52
  53         if (\version_compare(PHP_VERSION, '7.1', '<')) {
  54             return \array_merge($invalidExpr, [
  55                 ['list("a" => _) = array("a" => 1)', $errorPhpParserSyntax],
  56                 ['[] = []', $errorShortListAssign],
  57                 ['[$a] = [1]', $errorShortListAssign],
  58                 ['list("a" => $a) = array("a" => 1)', $errorAssocListAssign],
  59                 ['[$a[0], $a[1]] = [1, 2]', $errorShortListAssign],
  60                 ['[$a->b, $a->c] = [1, 2]', $errorShortListAssign],
  61             ]);
  62         }
  63
  64         return \array_merge($invalidExpr, [
  65             ['list("a" => _) = array("a" => 1)', $errorPhpParserSyntax],
  66             ['["a"] = [1]', $errorNonVariableAssign],
  67             ['[] = []', $errorEmptyList],
  68             ['[,] = [1,2]', $errorEmptyList],
  69             ['[,,] = [1,2,3]', $errorEmptyList],
  70         ]);
  71     }
  72
  73     /**
  74      * @dataProvider validStatements
  75      */
  76     public function testProcessValidStatement($code)
  77     {
  78         $stmts = $this->parse($code);
  79         $this->traverser->traverse($stmts);
  80         $this->assertTrue(true);
  81     }
  82
  83     public function validStatements()
  84     {
  85         $validExpr = [
  86             ['list($a) = array(1)'],
  87             ['list($x, $y) = array(1, 2)'],
  88         ];
  89
  90         if (\version_compare(PHP_VERSION, '7.1', '>=')) {
  91             return \array_merge($validExpr, [
  92                 ['[$a] = array(1)'],
  93                 ['list($b) = [2]'],
  94                 ['[$x, $y] = array(1, 2)'],
  95                 ['[$a] = [1]'],
  96                 ['[$x, $y] = [1, 2]'],
  97                 ['["_" => $v] = ["_" => 1]'],
  98                 ['[$a,] = [1,2,3]'],
  99                 ['[,$b] = [1,2,3]'],
 100                 ['[$a,,$c] = [1,2,3]'],
 101                 ['[$a,,,] = [1,2,3]'],
 102                 ['[$a[0], $a[1]] = [1, 2]'],
 103                 ['[$a[0][0][0], $a[0][0][1]] = [1, 2]'],
 104                 ['[$a->b, $a->c] = [1, 2]'],
 105                 ['[$a->b[0], $a->c[1]] = [1, 2]'],
 106                 ['[$a[0]->b[0], $a[0]->c[1]] = [1, 2]'],
 107                 ['[$a[$b->c + $b->d]] = [1]'],
 108                 ['[$a->c()->d, $a->c()->e] = [1, 2]'],
 109                 ['[x()->a, x()->b] = [1, 2]'],
 110             ]);
 111         }
 112
 113         return $validExpr;
 114     }
 115 }