<?php

use Pdahal\Xmpp\Buffers\Response;
use PHPUnit\Framework\TestCase;

/**
 * @internal
 *
 * @coversNothing
 */
class ResponseBufferTest extends TestCase
{
    public Response $buffer;

    protected function setUp(): void
    {
        $this->buffer = new Response();
    }

    public function testWriteString(): void
    {
        $this->buffer->write('test');
        $this->assertEquals(['test'], $this->buffer->getCurrentBufferData());
    }

    public function testWriteNumber(): void
    {
        $this->buffer->write(123);
        $this->assertEquals(['123'], $this->buffer->getCurrentBufferData());
    }

    public function testWriteEmpty(): void
    {
        $this->buffer->write('');
        $this->assertEquals([], $this->buffer->getCurrentBufferData());
    }

    public function testWriteNull(): void
    {
        $this->buffer->write(null);
        $this->assertEquals([], $this->buffer->getCurrentBufferData());
    }

    public function testRead(): void
    {
        $this->buffer->write('test');
        $response = $this->buffer->read();
        $this->assertEquals('test', $response);
    }

    public function testReadNullInput(): void
    {
        $this->buffer->write(null);
        $response = $this->buffer->read();
        $this->assertEquals('', $response);
    }

    public function testFlushWithInput(): void
    {
        $this->buffer->write('test');
        $this->buffer->read();
        $this->assertEquals([], $this->buffer->getCurrentBufferData());
    }

    public function testFlushWithoutInput(): void
    {
        $this->buffer->read();
        $this->assertEquals([], $this->buffer->getCurrentBufferData());
    }
}