configurable csv/xlsx export templates (#5531)

tests/Export/Package/MemoryPackage.php

@@ -0,0 +1,71 @@
+<?php
+
+/*
+ * This file is part of the Kimai time-tracking app.
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace App\Tests\Export\Package;
+
+use App\Export\Package\Column;
+use App\Export\Package\SpreadsheetPackage;
+
+/**
+ * @covers \App\Export\Package\SpoutSpreadsheet
+ */
+class MemoryPackage implements SpreadsheetPackage
+{
+    private ?string $filename = null;
+    /** @var array<Column> */
+    private array $columns = [];
+    private array $rows = [];
+    private bool $saved = false;
+
+    public function open(string $filename): void
+    {
+        $this->filename = $filename;
+    }
+
+    public function save(): void
+    {
+        $this->saved = true;
+    }
+
+    /**
+     * @param array<Column> $columns
+     */
+    public function setColumns(array $columns): void
+    {
+        $this->columns = $columns;
+    }
+
+    public function addRow(array $columns, array $options = []): void
+    {
+        $this->rows[] = ['columns' => $columns, 'options' => $options];
+    }
+
+    public function getFilename(): ?string
+    {
+        return $this->filename;
+    }
+
+    /**
+     * @return Column[]
+     */
+    public function getColumns(): array
+    {
+        return $this->columns;
+    }
+
+    public function getRows(): array
+    {
+        return $this->rows;
+    }
+
+    public function isSaved(): bool
+    {
+        return $this->saved;
+    }
+}