upgrade

vendor/szymach/c-pchart/tests/_support/Helper/Unit.php

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+<?php
+
+namespace Test\CpChart\Helper;
+
+use Codeception\Module;
+use Codeception\Module\Filesystem;
+
+class Unit extends Module
+{
+    public function _beforeSuite($settings = [])
+    {
+        $chartDir = $this->getChartDirectoryPath();
+        if (!is_dir($chartDir)) {
+            mkdir($chartDir);
+        }
+
+        $this->clearOutputDirectory();
+    }
+
+    public function _afterSuite($settings = [])
+    {
+        $this->clearOutputDirectory();
+    }
+
+    private function clearOutputDirectory()
+    {
+        $this->getFileSystem()->cleanDir($this->getChartDirectoryPath());
+    }
+
+    private function getChartDirectoryPath()
+    {
+        return sprintf(__DIR__."/../../_output/charts");
+    }
+
+    /**
+     * @return Filesystem
+     */
+    private function getFileSystem()
+    {
+        return $this->getModule('Filesystem');
+    }
+}