fix client request immutability

Author: Triplkrypl

src/Model/Client/Request.php

@@ -50,7 +50,7 @@ public function __construct(string $method, string $url, array $query = [], ?Str
      */
     public function withBaseUrl(string $baseUrl): self
     {
-        $request = new self($this->method, $this->url, $this->headers);
+        $request = new self($this->method, $this->url, [], $this->body, $this->headers);
         $request->baseUrl = StringRule::make($baseUrl, '$baseUrl')->parseHttpUrl([], [PHP_URL_QUERY, PHP_URL_FRAGMENT])->notNull();
         return $request;
     }
@@ -69,7 +69,7 @@ public function withJson($jsonData, ?Transformer $transformer): self
         $headers = $this->headers;
         $headers['Content-Type'] = 'application/json';
         $stream = Utils::streamFor(\GuzzleHttp\Utils::jsonEncode($jsonData));
-        $request = new self($this->method, $this->url, $headers, $stream);
+        $request = new self($this->method, $this->url, [], $stream, $headers);
         $request->baseUrl = $this->baseUrl;
         return $request;
     }

test/Model/Client/RequestTest.php

@@ -0,0 +1,36 @@
+<?php
+
+declare(strict_types=1);
+
+use GuzzleHttp\Psr7\HttpFactory;
+use PHPUnit\Framework\TestCase;
+use SimpleAsFuck\ApiToolkit\Model\Client\Request;
+
+final class RequestTest extends TestCase
+{
+    public function testWithJson(): void
+    {
+        $request = new Request('POST', '/test');
+        $request = $request->withBaseUrl('http://host');
+        $requestWithJson = $request->withJson(['test' => 'test'], null);
+
+        $factory = new HttpFactory();
+
+        self::assertSame('', $request->createPsr($factory)->getBody()->getContents());
+        self::assertSame('{"test":"test"}', $requestWithJson->createPsr($factory)->getBody()->getContents());
+    }
+
+    public function testWithBaseUrl(): void
+    {
+        $request = new Request('GET', '/test', ['test' => 'test'], null, ['test' => 'test']);
+        $requestWithBaseUrl = $request->withBaseUrl('http://host');
+        $psrRequest = $requestWithBaseUrl->createPsr(new HttpFactory());
+
+        self::assertSame(false, $request->hasBaseUrl());
+        self::assertSame(true, $requestWithBaseUrl->hasBaseUrl());
+        self::assertSame('GET', $psrRequest->getMethod());
+        self::assertSame('http://host/test?test=test', (string) $psrRequest->getUri());
+        self::assertSame('', $psrRequest->getBody()->getContents());
+        self::assertSame(['test'], $psrRequest->getHeader('test'));
+    }
+}