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87 lines (76 loc) · 2.42 KB
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<?php
declare(strict_types=1);
namespace GlobusStudio\QRCode\Tests\Unit\Encoder;
use GlobusStudio\QRCode\Encoder\BitBuffer;
use PHPUnit\Framework\TestCase;
final class BitBufferTest extends TestCase
{
public function testInitialState(): void
{
$buffer = new BitBuffer();
self::assertSame(0, $buffer->getLengthInBits());
self::assertSame([], $buffer->getBuffer());
}
public function testPutBitTrue(): void
{
$buffer = new BitBuffer();
$buffer->putBit(true);
self::assertSame(1, $buffer->getLengthInBits());
self::assertTrue($buffer->get(0));
}
public function testPutBitFalse(): void
{
$buffer = new BitBuffer();
$buffer->putBit(false);
self::assertSame(1, $buffer->getLengthInBits());
self::assertFalse($buffer->get(0));
}
public function testPutMultipleBits(): void
{
$buffer = new BitBuffer();
$buffer->putBit(true);
$buffer->putBit(false);
$buffer->putBit(true);
$buffer->putBit(true);
self::assertSame(4, $buffer->getLengthInBits());
self::assertTrue($buffer->get(0));
self::assertFalse($buffer->get(1));
self::assertTrue($buffer->get(2));
self::assertTrue($buffer->get(3));
}
public function testPutNumber(): void
{
$buffer = new BitBuffer();
$buffer->put(0b1010, 4);
self::assertSame(4, $buffer->getLengthInBits());
self::assertTrue($buffer->get(0));
self::assertFalse($buffer->get(1));
self::assertTrue($buffer->get(2));
self::assertFalse($buffer->get(3));
}
public function testPutLargeNumber(): void
{
$buffer = new BitBuffer();
$buffer->put(0xFF, 8);
self::assertSame(8, $buffer->getLengthInBits());
for ($i = 0; $i < 8; $i++) {
self::assertTrue($buffer->get($i));
}
}
public function testBufferSpansMultipleBytes(): void
{
$buffer = new BitBuffer();
$buffer->put(0xFF, 8);
$buffer->put(0x00, 8);
self::assertSame(16, $buffer->getLengthInBits());
self::assertSame([0xFF, 0x00], $buffer->getBuffer());
}
public function testGetBufferReturnsArray(): void
{
$buffer = new BitBuffer();
$buffer->put(0xAB, 8);
$result = $buffer->getBuffer();
self::assertIsArray($result);
self::assertSame([0xAB], $result);
}
}