Add CountWrapper

tests/CountWrapperTest.php

@@ -0,0 +1,65 @@
+<?php
+/**
+ * @copyright Copyright (c) 2018 Robin Appelman <robin@icewind.nl>
+ *
+ * @license GNU AGPL version 3 or any later version
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+namespace Icewind\Streams\Tests;
+
+
+use Icewind\Streams\CountWrapper;
+
+class CountWrapperTest extends WrapperTest {
+	protected function wrapSource($source, $callback = null) {
+		if (is_null($callback)) {
+			$callback = function () {
+			};
+		}
+		return CountWrapper::wrap($source, $callback);
+	}
+
+	public function testReadCount() {
+		$count = 0;
+
+		$source = fopen('php://temp', 'r+');
+		fwrite($source, 'foobar');
+		rewind($source);
+
+		$wrapped = CountWrapper::wrap($source, function ($readCount) use (&$count) {
+			$count = $readCount;
+		});
+
+		stream_get_contents($wrapped);
+		fclose($wrapped);
+		$this->assertEquals(6, $count);
+	}
+
+	public function testWriteCount() {
+		$count = 0;
+
+		$source = fopen('php://temp', 'r+');
+
+		$wrapped = CountWrapper::wrap($source, function ($readCount, $writeCount) use (&$count) {
+			$count = $writeCount;
+		});
+
+		fwrite($wrapped, 'foobar');
+		fclose($wrapped);
+		$this->assertEquals(6, $count);
+	}
+}