Split testsuite for unit and inspector based tests (#82)

tests/Unit/ServerTest.php

@@ -0,0 +1,47 @@
+<?php
+
+/*
+ * This file is part of the official PHP MCP SDK.
+ *
+ * A collaboration between Symfony and the PHP Foundation.
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Mcp\Tests\Unit;
+
+use Mcp\JsonRpc\Handler;
+use Mcp\Server;
+use Mcp\Server\Transport\InMemoryTransport;
+use PHPUnit\Framework\TestCase;
+
+class ServerTest extends TestCase
+{
+    public function testJsonExceptions()
+    {
+        $handler = $this->getMockBuilder(Handler::class)
+            ->disableOriginalConstructor()
+            ->onlyMethods(['process'])
+            ->getMock();
+
+        $handler->expects($this->exactly(2))->method('process')->willReturnOnConsecutiveCalls(
+            [['{"jsonrpc":"2.0","id":0,"error":{"code":-32700,"message":"Parse error"}}', []]],
+            [['success', []]]
+        );
+
+        $transport = $this->getMockBuilder(InMemoryTransport::class)
+            ->setConstructorArgs([['foo', 'bar']])
+            ->onlyMethods(['send'])
+            ->getMock();
+        $transport->expects($this->exactly(2))->method('send')->willReturnOnConsecutiveCalls(
+            null,
+            null
+        );
+
+        $server = new Server($handler);
+        $server->connect($transport);
+
+        $transport->listen();
+    }
+}