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diff --git a/vendor/mikey179/vfsStream/src/test/php/org/bovigo/vfs/DirectoryIterationTestCase.php b/vendor/mikey179/vfsStream/src/test/php/org/bovigo/vfs/DirectoryIterationTestCase.php
new file mode 100644
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+++ b/vendor/mikey179/vfsStream/src/test/php/org/bovigo/vfs/DirectoryIterationTestCase.php
@@ -0,0 +1,318 @@
+<?php
+/**
+ * This file is part of vfsStream.
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ *
+ * @package  org\bovigo\vfs
+ */
+namespace org\bovigo\vfs;
+require_once __DIR__ . '/vfsStreamWrapperBaseTestCase.php';
+/**
+ * Test for directory iteration.
+ *
+ * @group  dir
+ * @group  iteration
+ */
+class DirectoryIterationTestCase extends vfsStreamWrapperBaseTestCase
+{
+    /**
+     * clean up test environment
+     */
+    public function tearDown()
+    {
+        vfsStream::enableDotfiles();
+    }
+
+    /**
+     * @return  array
+     */
+    public function provideSwitchWithExpectations()
+    {
+        return array(array(function() { vfsStream::disableDotfiles(); }, array('bar', 'baz2')),
+                     array(function() { vfsStream::enableDotfiles(); }, array('.', '..', 'bar', 'baz2'))
+        );
+    }
+
+    /**
+     * assertion for directoy count
+     *
+     * @param  int  $expectedCount
+     * @param  int  $actualCount
+     */
+    private function assertDirectoryCount($expectedCount, $actualCount)
+    {
+        $this->assertEquals($expectedCount,
+                            $actualCount,
+                            'Directory foo contains ' . $expectedCount . ' children, but got ' . $actualCount . ' children while iterating over directory contents'
+        );
+    }
+
+    /**
+     * @param  \Closure  $dotFilesSwitch
+     * @param  string[]  $expectedDirectories
+     * @test
+     * @dataProvider  provideSwitchWithExpectations
+     */
+    public function directoryIteration(\Closure $dotFilesSwitch, array $expectedDirectories)
+    {
+        $dotFilesSwitch();
+        $dir = dir($this->fooURL);
+        $i   = 0;
+        while (false !== ($entry = $dir->read())) {
+            $i++;
+            $this->assertTrue(in_array($entry, $expectedDirectories));
+        }
+
+        $this->assertDirectoryCount(count($expectedDirectories), $i);
+        $dir->rewind();
+        $i   = 0;
+        while (false !== ($entry = $dir->read())) {
+            $i++;
+            $this->assertTrue(in_array($entry, $expectedDirectories));
+        }
+
+        $this->assertDirectoryCount(count($expectedDirectories), $i);
+        $dir->close();
+    }
+
+    /**
+     * @param  \Closure  $dotFilesSwitch
+     * @param  string[]  $expectedDirectories
+     * @test
+     * @dataProvider  provideSwitchWithExpectations
+     */
+    public function directoryIterationWithDot(\Closure $dotFilesSwitch, array $expectedDirectories)
+    {
+        $dotFilesSwitch();
+        $dir = dir($this->fooURL . '/.');
+        $i   = 0;
+        while (false !== ($entry = $dir->read())) {
+            $i++;
+            $this->assertTrue(in_array($entry, $expectedDirectories));
+        }
+
+        $this->assertDirectoryCount(count($expectedDirectories), $i);
+        $dir->rewind();
+        $i   = 0;
+        while (false !== ($entry = $dir->read())) {
+            $i++;
+            $this->assertTrue(in_array($entry, $expectedDirectories));
+        }
+
+        $this->assertDirectoryCount(count($expectedDirectories), $i);
+        $dir->close();
+    }
+
+    /**
+     * assure that a directory iteration works as expected
+     *
+     * @param  \Closure  $dotFilesSwitch
+     * @param  string[]  $expectedDirectories
+     * @test
+     * @dataProvider  provideSwitchWithExpectations
+     * @group  regression
+     * @group  bug_2
+     */
+    public function directoryIterationWithOpenDir_Bug_2(\Closure $dotFilesSwitch, array $expectedDirectories)
+    {
+        $dotFilesSwitch();
+        $handle = opendir($this->fooURL);
+        $i   = 0;
+        while (false !== ($entry = readdir($handle))) {
+            $i++;
+            $this->assertTrue(in_array($entry, $expectedDirectories));
+        }
+
+        $this->assertDirectoryCount(count($expectedDirectories), $i);
+
+        rewinddir($handle);
+        $i   = 0;
+        while (false !== ($entry = readdir($handle))) {
+            $i++;
+            $this->assertTrue(in_array($entry, $expectedDirectories));
+        }
+
+        $this->assertDirectoryCount(count($expectedDirectories), $i);
+        closedir($handle);
+    }
+
+    /**
+     * assure that a directory iteration works as expected
+     *
+     * @author  Christoph Bloemer
+     * @param  \Closure  $dotFilesSwitch
+     * @param  string[]  $expectedDirectories
+     * @test
+     * @dataProvider  provideSwitchWithExpectations
+     * @group  regression
+     * @group  bug_4
+     */
+    public function directoryIteration_Bug_4(\Closure $dotFilesSwitch, array $expectedDirectories)
+    {
+        $dotFilesSwitch();
+        $dir   = $this->fooURL;
+        $list1 = array();
+        if ($handle = opendir($dir)) {
+            while (false !== ($listItem = readdir($handle))) {
+                if ('.'  != $listItem && '..' != $listItem) {
+                    if (is_file($dir . '/' . $listItem) === true) {
+                        $list1[] = 'File:[' . $listItem . ']';
+                    } elseif (is_dir($dir . '/' . $listItem) === true) {
+                        $list1[] = 'Folder:[' . $listItem . ']';
+                    }
+                }
+            }
+
+            closedir($handle);
+        }
+
+        $list2 = array();
+        if ($handle = opendir($dir)) {
+            while (false !== ($listItem = readdir($handle))) {
+                if ('.'  != $listItem && '..' != $listItem) {
+                    if (is_file($dir . '/' . $listItem) === true) {
+                        $list2[] = 'File:[' . $listItem . ']';
+                    } elseif (is_dir($dir . '/' . $listItem) === true) {
+                        $list2[] = 'Folder:[' . $listItem . ']';
+                    }
+                }
+            }
+
+            closedir($handle);
+        }
+
+        $this->assertEquals($list1, $list2);
+        $this->assertEquals(2, count($list1));
+        $this->assertEquals(2, count($list2));
+    }
+
+    /**
+     * assure that a directory iteration works as expected
+     *
+     * @param  \Closure  $dotFilesSwitch
+     * @param  string[]  $expectedDirectories
+     * @test
+     * @dataProvider  provideSwitchWithExpectations
+     */
+    public function directoryIterationShouldBeIndependent(\Closure $dotFilesSwitch, array $expectedDirectories)
+    {
+        $dotFilesSwitch();
+        $list1   = array();
+        $list2   = array();
+        $handle1 = opendir($this->fooURL);
+        if (false !== ($listItem = readdir($handle1))) {
+            $list1[] = $listItem;
+        }
+
+        $handle2 = opendir($this->fooURL);
+        if (false !== ($listItem = readdir($handle2))) {
+            $list2[] = $listItem;
+        }
+
+        if (false !== ($listItem = readdir($handle1))) {
+            $list1[] = $listItem;
+        }
+
+        if (false !== ($listItem = readdir($handle2))) {
+            $list2[] = $listItem;
+        }
+
+        closedir($handle1);
+        closedir($handle2);
+        $this->assertEquals($list1, $list2);
+        $this->assertEquals(2, count($list1));
+        $this->assertEquals(2, count($list2));
+    }
+
+    /**
+     * @test
+     * @group  issue_50
+     */
+    public function recursiveDirectoryIterationWithDotsEnabled()
+    {
+        vfsStream::enableDotfiles();
+        vfsStream::setup();
+        $structure = array(
+          'Core' => array(
+            'AbstractFactory' => array(
+              'test.php'    => 'some text content',
+              'other.php'   => 'Some more text content',
+              'Invalid.csv' => 'Something else',
+             ),
+            'AnEmptyFolder'   => array(),
+            'badlocation.php' => 'some bad content',
+          )
+        );
+        $root     = vfsStream::create($structure);
+        $rootPath = vfsStream::url($root->getName());
+
+        $iterator = new \RecursiveIteratorIterator(new \RecursiveDirectoryIterator($rootPath),
+                                                   \RecursiveIteratorIterator::CHILD_FIRST);
+        $pathes = array();
+        foreach ($iterator as $fullFileName => $fileSPLObject) {
+            $pathes[] = $fullFileName;
+        }
+
+        $this->assertEquals(array('vfs://root'.DIRECTORY_SEPARATOR.'.',
+                                  'vfs://root'.DIRECTORY_SEPARATOR.'..',
+                                  'vfs://root'.DIRECTORY_SEPARATOR.'Core'.DIRECTORY_SEPARATOR.'.',
+                                  'vfs://root'.DIRECTORY_SEPARATOR.'Core'.DIRECTORY_SEPARATOR.'..',
+                                  'vfs://root'.DIRECTORY_SEPARATOR.'Core'.DIRECTORY_SEPARATOR.'AbstractFactory'.DIRECTORY_SEPARATOR.'.',
+                                  'vfs://root'.DIRECTORY_SEPARATOR.'Core'.DIRECTORY_SEPARATOR.'AbstractFactory'.DIRECTORY_SEPARATOR.'..',
+                                  'vfs://root'.DIRECTORY_SEPARATOR.'Core'.DIRECTORY_SEPARATOR.'AbstractFactory'.DIRECTORY_SEPARATOR.'test.php',
+                                  'vfs://root'.DIRECTORY_SEPARATOR.'Core'.DIRECTORY_SEPARATOR.'AbstractFactory'.DIRECTORY_SEPARATOR.'other.php',
+                                  'vfs://root'.DIRECTORY_SEPARATOR.'Core'.DIRECTORY_SEPARATOR.'AbstractFactory'.DIRECTORY_SEPARATOR.'Invalid.csv',
+                                  'vfs://root'.DIRECTORY_SEPARATOR.'Core'.DIRECTORY_SEPARATOR.'AbstractFactory',
+                                  'vfs://root'.DIRECTORY_SEPARATOR.'Core'.DIRECTORY_SEPARATOR.'AnEmptyFolder'.DIRECTORY_SEPARATOR.'.',
+                                  'vfs://root'.DIRECTORY_SEPARATOR.'Core'.DIRECTORY_SEPARATOR.'AnEmptyFolder'.DIRECTORY_SEPARATOR.'..',
+                                  'vfs://root'.DIRECTORY_SEPARATOR.'Core'.DIRECTORY_SEPARATOR.'AnEmptyFolder',
+                                  'vfs://root'.DIRECTORY_SEPARATOR.'Core'.DIRECTORY_SEPARATOR.'badlocation.php',
+                                  'vfs://root'.DIRECTORY_SEPARATOR.'Core'
+                            ),
+                            $pathes
+        );
+    }
+
+    /**
+     * @test
+     * @group  issue_50
+     */
+    public function recursiveDirectoryIterationWithDotsDisabled()
+    {
+        vfsStream::disableDotfiles();
+        vfsStream::setup();
+        $structure = array(
+          'Core' => array(
+            'AbstractFactory' => array(
+              'test.php'    => 'some text content',
+              'other.php'   => 'Some more text content',
+              'Invalid.csv' => 'Something else',
+             ),
+            'AnEmptyFolder'   => array(),
+            'badlocation.php' => 'some bad content',
+          )
+        );
+        $root     = vfsStream::create($structure);
+        $rootPath = vfsStream::url($root->getName());
+
+        $iterator = new \RecursiveIteratorIterator(new \RecursiveDirectoryIterator($rootPath),
+                                                   \RecursiveIteratorIterator::CHILD_FIRST);
+        $pathes = array();
+        foreach ($iterator as $fullFileName => $fileSPLObject) {
+            $pathes[] = $fullFileName;
+        }
+
+        $this->assertEquals(array('vfs://root'.DIRECTORY_SEPARATOR.'Core'.DIRECTORY_SEPARATOR.'AbstractFactory'.DIRECTORY_SEPARATOR.'test.php',
+                                  'vfs://root'.DIRECTORY_SEPARATOR.'Core'.DIRECTORY_SEPARATOR.'AbstractFactory'.DIRECTORY_SEPARATOR.'other.php',
+                                  'vfs://root'.DIRECTORY_SEPARATOR.'Core'.DIRECTORY_SEPARATOR.'AbstractFactory'.DIRECTORY_SEPARATOR.'Invalid.csv',
+                                  'vfs://root'.DIRECTORY_SEPARATOR.'Core'.DIRECTORY_SEPARATOR.'AbstractFactory',
+                                  'vfs://root'.DIRECTORY_SEPARATOR.'Core'.DIRECTORY_SEPARATOR.'AnEmptyFolder',
+                                  'vfs://root'.DIRECTORY_SEPARATOR.'Core'.DIRECTORY_SEPARATOR.'badlocation.php',
+                                  'vfs://root'.DIRECTORY_SEPARATOR.'Core'
+                            ),
+                            $pathes
+        );
+    }
+}
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