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vendor/psy/psysh/test/CodeCleaner/ListPassTest.php

@@ -0,0 +1,115 @@
+<?php
+
+/*
+ * This file is part of Psy Shell.
+ *
+ * (c) 2012-2018 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 Psy\CodeCleaner\ListPass;
+
+class ListPassTest extends CodeCleanerTestCase
+{
+    public function setUp()
+    {
+        $this->setPass(new ListPass());
+    }
+
+    /**
+     * @dataProvider invalidStatements
+     * @expectedException \Psy\Exception\ParseErrorException
+     */
+    public function testProcessInvalidStatement($code, $expectedMessage)
+    {
+        if (\method_exists($this, 'setExpectedException')) {
+            $this->setExpectedException('Psy\Exception\ParseErrorException', $expectedMessage);
+        } else {
+            $this->expectExceptionMessage($expectedMessage);
+        }
+
+        $stmts = $this->parse($code);
+        $this->traverser->traverse($stmts);
+    }
+
+    public function invalidStatements()
+    {
+        // Not typo.  It is ambiguous whether "Syntax" or "syntax".
+        $errorShortListAssign = "yntax error, unexpected '='";
+        $errorEmptyList = 'Cannot use empty list';
+        $errorAssocListAssign = 'Syntax error, unexpected T_CONSTANT_ENCAPSED_STRING, expecting \',\' or \')\'';
+        $errorNonVariableAssign = 'Assignments can only happen to writable values';
+        $errorPhpParserSyntax = 'PHP Parse error: Syntax error, unexpected';
+
+        $invalidExpr = [
+            ['list() = array()', $errorEmptyList],
+            ['list("a") = array(1)', $errorPhpParserSyntax],
+        ];
+
+        if (\version_compare(PHP_VERSION, '7.1', '<')) {
+            return \array_merge($invalidExpr, [
+                ['list("a" => _) = array("a" => 1)', $errorPhpParserSyntax],
+                ['[] = []', $errorShortListAssign],
+                ['[$a] = [1]', $errorShortListAssign],
+                ['list("a" => $a) = array("a" => 1)', $errorAssocListAssign],
+                ['[$a[0], $a[1]] = [1, 2]', $errorShortListAssign],
+                ['[$a->b, $a->c] = [1, 2]', $errorShortListAssign],
+            ]);
+        }
+
+        return \array_merge($invalidExpr, [
+            ['list("a" => _) = array("a" => 1)', $errorPhpParserSyntax],
+            ['["a"] = [1]', $errorNonVariableAssign],
+            ['[] = []', $errorEmptyList],
+            ['[,] = [1,2]', $errorEmptyList],
+            ['[,,] = [1,2,3]', $errorEmptyList],
+        ]);
+    }
+
+    /**
+     * @dataProvider validStatements
+     */
+    public function testProcessValidStatement($code)
+    {
+        $stmts = $this->parse($code);
+        $this->traverser->traverse($stmts);
+        $this->assertTrue(true);
+    }
+
+    public function validStatements()
+    {
+        $validExpr = [
+            ['list($a) = array(1)'],
+            ['list($x, $y) = array(1, 2)'],
+        ];
+
+        if (\version_compare(PHP_VERSION, '7.1', '>=')) {
+            return \array_merge($validExpr, [
+                ['[$a] = array(1)'],
+                ['list($b) = [2]'],
+                ['[$x, $y] = array(1, 2)'],
+                ['[$a] = [1]'],
+                ['[$x, $y] = [1, 2]'],
+                ['["_" => $v] = ["_" => 1]'],
+                ['[$a,] = [1,2,3]'],
+                ['[,$b] = [1,2,3]'],
+                ['[$a,,$c] = [1,2,3]'],
+                ['[$a,,,] = [1,2,3]'],
+                ['[$a[0], $a[1]] = [1, 2]'],
+                ['[$a[0][0][0], $a[0][0][1]] = [1, 2]'],
+                ['[$a->b, $a->c] = [1, 2]'],
+                ['[$a->b[0], $a->c[1]] = [1, 2]'],
+                ['[$a[0]->b[0], $a[0]->c[1]] = [1, 2]'],
+                ['[$a[$b->c + $b->d]] = [1]'],
+                ['[$a->c()->d, $a->c()->e] = [1, 2]'],
+                ['[x()->a, x()->b] = [1, 2]'],
+            ]);
+        }
+
+        return $validExpr;
+    }
+}