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