Add test for SocketPost overriding siteVerifyUrl (#612)

Co-authored-by: google-labs-jules[bot] <161369871+google-labs-jules[bot]@users.noreply.github.com>
Co-authored-by: rowan-m <108052+rowan-m@users.noreply.github.com>

Author: rowan-m

tests/ReCaptcha/RequestMethod/SocketPostTest.php

@@ -161,6 +161,27 @@ public function testSubmit(): void
         $this->assertTrue(SocketPostGlobalState::$fcloseCalled);
     }
 
+    public function testOverrideSiteVerifyUrl(): void
+    {
+        SocketPostGlobalState::$fgetsResponses = [
+            "HTTP/1.0 200 OK\r\n",
+            "Content-Type: application/json\r\n",
+            "\r\n",
+            'RESPONSEBODY',
+        ];
+
+        $url = 'https://custom.recaptcha.net/recaptcha/api/siteverify';
+        $sp = new SocketPost($url);
+        $response = $sp->submit(new RequestParameters('secret', 'response'));
+
+        $this->assertEquals('ssl://custom.recaptcha.net', SocketPostGlobalState::$fsockopenHostname);
+        $this->assertStringContainsString('POST /recaptcha/api/siteverify HTTP/1.0', SocketPostGlobalState::$fwriteData);
+        $this->assertStringContainsString('secret=secret', SocketPostGlobalState::$fwriteData);
+        $this->assertStringContainsString('response=response', SocketPostGlobalState::$fwriteData);
+        $this->assertEquals('RESPONSEBODY', $response);
+        $this->assertTrue(SocketPostGlobalState::$fcloseCalled);
+    }
+
     public function testStreamTimeoutFailureReturnsError(): void
     {
         SocketPostGlobalState::$streamSetTimeoutSuccess = false;