Renamed JsonErrorHandler to JsonErrorResponseGenerator

module/Rest/test/ErrorHandler/JsonErrorResponseGeneratorTest.php

@@ -0,0 +1,44 @@
+<?php
+namespace ShlinkioTest\Shlink\Rest\ErrorHandler;
+
+use PHPUnit\Framework\TestCase;
+use Shlinkio\Shlink\Rest\ErrorHandler\JsonErrorResponseGenerator;
+use Zend\Diactoros\Response;
+use Zend\Diactoros\ServerRequestFactory;
+
+class JsonErrorResponseGeneratorTest extends TestCase
+{
+    /**
+     * @var JsonErrorResponseGenerator
+     */
+    protected $errorHandler;
+
+    public function setUp()
+    {
+        $this->errorHandler = new JsonErrorResponseGenerator();
+    }
+
+    /**
+     * @test
+     */
+    public function noErrorStatusReturnsInternalServerError()
+    {
+        $response = $this->errorHandler->__invoke(null, ServerRequestFactory::fromGlobals(), new Response());
+        $this->assertInstanceOf(Response\JsonResponse::class, $response);
+        $this->assertEquals(500, $response->getStatusCode());
+    }
+
+    /**
+     * @test
+     */
+    public function errorStatusReturnsThatStatus()
+    {
+        $response = $this->errorHandler->__invoke(
+            null,
+            ServerRequestFactory::fromGlobals(),
+            (new Response())->withStatus(405)
+        );
+        $this->assertInstanceOf(Response\JsonResponse::class, $response);
+        $this->assertEquals(405, $response->getStatusCode());
+    }
+}