[Server] Feat: Add comprehensive HTTP inspector tests with improved framework (#125)

* feat: add comprehensive HTTP inspector tests and improve test framework

* chore: remove debug flag from server configuration

tests/Inspector/Stdio/StdioDiscoveryCalculatorTest.php

@@ -0,0 +1,50 @@
+<?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\Inspector\Stdio;
+
+final class StdioDiscoveryCalculatorTest extends StdioInspectorSnapshotTestCase
+{
+    public static function provideMethods(): array
+    {
+        return [
+            ...parent::provideMethods(),
+            'Calculate Sum' => [
+                'method' => 'tools/call',
+                'options' => [
+                    'toolName' => 'calculate',
+                    'toolArgs' => ['a' => 12.5, 'b' => 7.3, 'operation' => 'add'],
+                ],
+                'testName' => 'calculate_sum',
+            ],
+            'Update Setting' => [
+                'method' => 'tools/call',
+                'options' => [
+                    'toolName' => 'update_setting',
+                    'toolArgs' => ['setting' => 'precision', 'value' => 3],
+                ],
+                'testName' => 'update_setting',
+            ],
+            'Read Config' => [
+                'method' => 'resources/read',
+                'options' => [
+                    'uri' => 'config://calculator/settings',
+                ],
+                'testName' => 'read_config',
+            ],
+        ];
+    }
+
+    protected function getServerScript(): string
+    {
+        return \dirname(__DIR__, 3).'/examples/stdio-discovery-calculator/server.php';
+    }
+}