bench: Empty index.php web requests overhead

tests/Benchmarks/Integrations/EmptyFileBench.php

@@ -0,0 +1,67 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Benchmarks\Integrations;
+
+use DDTrace\Tests\Common\WebFrameworkTestCase;
+use DDTrace\Tests\Frameworks\Util\Request\GetSpec;
+
+class EmptyFileBench extends WebFrameworkTestCase
+{
+    /**
+     * @BeforeMethods("disabledTracing")
+     * @AfterMethods("afterMethod")
+     * @Revs(10)
+     * @Iterations(10)
+     * @OutputTimeUnit("microseconds")
+     * @RetryThreshold(10.0)
+     */
+    public function benchEmptyFileBaseline()
+    {
+        $this->call(GetSpec::create(
+            'A web request to a framework not using auto loaders',
+            '/'
+        ));
+    }
+
+    /**
+     * @BeforeMethods("enableTracing")
+     * @AfterMethods("afterMethod")
+     * @Revs(10)
+     * @Iterations(10)
+     * @OutputTimeUnit("microseconds")
+     * @RetryThreshold(10.0)
+     */
+    public function benchEmptyFileOverhead()
+    {
+        $this->call(GetSpec::create(
+            'A web request to a framework not using auto loaders',
+            '/'
+        ));
+    }
+
+    public static function getAppIndexScript()
+    {
+        return __DIR__ . '/../../Frameworks/Custom/Version_Not_Autoloaded/index.php';
+    }
+
+    public function disabledTracing()
+    {
+        $this->setUpWebServer([
+            'DD_TRACE_ENABLED' => 0,
+        ]);
+    }
+
+    public function afterMethod()
+    {
+        $this->TearDownAfterClass();
+    }
+
+    public function enableTracing()
+    {
+        $this->setUpWebServer([
+            'DD_TRACE_ENABLED' => 1,
+        ]);
+    }
+}