[ticket/16141] Add tests for plupload's get_chunk_size()

PHPBB3-16141

tests/plupload/plupload_test.php

@@ -54,4 +54,72 @@ class phpbb_plupload_test extends phpbb_test_case
 
 		$this->assertEquals($expected, $plupload->generate_resize_string());
 	}
+
+	public function data_get_chunk_size()
+	{
+		return [
+			[[
+				'memory_limit' => -1,
+				'upload_max_filesize' => 0,
+				'post_max_size' => 0,
+			], 0],
+			[[
+				'memory_limit' => -1,
+				'upload_max_filesize' => 500,
+				'post_max_size' => 400,
+			], 200],
+			[[
+				'memory_limit' => 100,
+				'upload_max_filesize' => 0,
+				'post_max_size' => 300,
+			], 50],
+			[[
+				'memory_limit' => 300,
+				'upload_max_filesize' => 200,
+				'post_max_size' => 0,
+			], 100],
+			[[
+				'memory_limit' => 3000,
+				'upload_max_filesize' => 800,
+				'post_max_size' => 900,
+			], 400],
+			[[
+				'memory_limit' => 2000,
+				'upload_max_filesize' => 1000,
+				'post_max_size' => 600,
+			], 300],
+		];
+	}
+
+	/**
+	 * @dataProvider data_get_chunk_size
+	 */
+	public function test_get_chunk_size($limits_ary, $expected)
+	{
+		global $phpbb_root_path, $phpEx;
+
+		$lang = new \phpbb\language\language(new \phpbb\language\language_file_loader($phpbb_root_path, $phpEx));
+		$config = new \phpbb\config\config([]);
+
+		$ini_wrapper = $this->getMockBuilder('\bantu\IniGetWrapper\IniGetWrapper')
+			->setMethods(['getBytes'])
+			->getMock();
+		$ini_wrapper->method('getBytes')
+			->will($this->returnValueMap([
+				['memory_limit', $limits_ary['memory_limit']],
+				['upload_max_filesize', $limits_ary['upload_max_filesize']],
+				['post_max_size', $limits_ary['post_max_size']]
+			]));
+
+		$plupload = new \phpbb\plupload\plupload(
+			'',
+			$config,
+			new phpbb_mock_request,
+			new \phpbb\user($lang, '\phpbb\datetime'),
+			$ini_wrapper,
+			new \phpbb\mimetype\guesser(array(new \phpbb\mimetype\extension_guesser))
+		);
+
+		$this->assertEquals($expected, $plupload->get_chunk_size());
+	}
 }