added phpunit

tests/BitBufferTest.php

@@ -0,0 +1,48 @@
+<?php
+/**
+ * @filesource   BitBufferTest.php
+ * @created      08.02.2016
+ * @author       Smiley <smiley@chillerlan.net>
+ * @copyright    2015 Smiley
+ * @license      MIT
+ */
+
+use chillerlan\QRCode\BitBuffer;
+use chillerlan\QRCode\QRConst;
+
+class BitBufferTest extends PHPUnit_Framework_TestCase{
+
+	/**
+	 * @var \chillerlan\QRCode\BitBuffer
+	 */
+	protected $bitBuffer;
+
+	protected function setUp(){
+		$this->bitBuffer = new BitBuffer;
+	}
+
+	public function bitProvider(){
+		return [
+			[QRConst::MODE_NUMBER,    16],
+			[QRConst::MODE_ALPHANUM,  32],
+			[QRConst::MODE_BYTE,      64],
+			[QRConst::MODE_KANJI,    128],
+		];
+	}
+
+	/**
+	 * @dataProvider bitProvider
+	 */
+	public function testPut($data, $value){
+		$this->bitBuffer->put($data, 4);
+		$this->assertEquals($value, $this->bitBuffer->buffer[0]);
+		$this->assertEquals(4, $this->bitBuffer->length);
+	}
+
+	public function testClear(){
+		$this->bitBuffer->clear();
+		$this->assertEquals([], $this->bitBuffer->buffer);
+		$this->assertEquals(0, $this->bitBuffer->length);
+	}
+
+}