Add dummy classes to TestAsset

Author: devanych

tests/TestAsset/DummyEmitter.php

@@ -0,0 +1,32 @@
+<?php
+
+declare(strict_types=1);
+
+namespace HttpSoft\Tests\Basis\TestAsset;
+
+use HttpSoft\Emitter\EmitterInterface;
+use Psr\Http\Message\ResponseInterface;
+
+class DummyEmitter implements EmitterInterface
+{
+    /**
+     * @var string
+     */
+    private string $body = '';
+
+    /**
+     * {@inheritDoc}
+     */
+    public function emit(ResponseInterface $response, bool $withoutBody = false): void
+    {
+        $this->body = (string) $response->getBody();
+    }
+
+    /**
+     * @return string
+     */
+    public function getBody(): string
+    {
+        return $this->body;
+    }
+}

tests/TestAsset/DummyHandler.php

@@ -0,0 +1,55 @@
+<?php
+
+declare(strict_types=1);
+
+namespace HttpSoft\Tests\Basis\TestAsset;
+
+use HttpSoft\Response\TextResponse;
+use Psr\Http\Message\ResponseInterface;
+use Psr\Http\Message\ServerRequestInterface;
+use Psr\Http\Server\RequestHandlerInterface;
+use StdClass;
+
+class DummyHandler implements RequestHandlerInterface
+{
+    /**
+     * @param ServerRequestInterface $request
+     * @return ResponseInterface
+     */
+    public function handle(ServerRequestInterface $request): ResponseInterface
+    {
+        return self::staticHandle();
+    }
+
+    /**
+     * @return ResponseInterface
+     */
+    public static function staticHandle()
+    {
+        return new TextResponse(self::body());
+    }
+
+    /**
+     * @return string
+     */
+    public static function body()
+    {
+        return 'Dummy Handler';
+    }
+
+    /**
+     * @return null
+     */
+    public static function invalidStaticHandle()
+    {
+        return new StdClass();
+    }
+
+    /**
+     * @return null
+     */
+    public function invalidHandle()
+    {
+        return null;
+    }
+}