psalm/tests/ForeachTest.php

<?php
namespace Psalm\Tests;

class ForeachTest extends TestCase
{
    use Traits\FileCheckerInvalidCodeParseTestTrait;

    /**
     * @return array
     */
    public function providerFileCheckerInvalidCodeParse()
    {
        return [
            'continueOutsideLoop' => [
                '<?php
                    continue;',
                'error_message' => 'ContinueOutsideLoop',
            ],
            'invalidIterator' => [
                '<?php
                    foreach (5 as $a) {

                    }',
                'error_message' => 'InvalidIterator',
            ],
            'rawObjectIteration' => [
                '<?php
                    class A {
                        /** @var ?string */
                        public $foo;
                    }

                    class B extends A {}

                    function bar(A $a) : void {}

                    $arr = [];

                    if (rand(0, 10) > 5) {
                        $arr[] = new A;
                    } else {
                        $arr = new B;
                    }

                    foreach ($arr as $a) {
                        bar($a);
                    }',
                'error_message' => 'RawObjectIteration',
            ],
        ];
    }
}