From 9c31042c1a0772d795ead298186d5998b21f4cd5 Mon Sep 17 00:00:00 2001
From: Dennis Eichhorn <spl1nnes.com@googlemail.com>
Date: Tue, 17 Oct 2023 00:13:58 +0000
Subject: [PATCH] fix jsonSerialize function call

---
 tests/Models/NullInvestmentTest.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tests/Models/NullInvestmentTest.php b/tests/Models/NullInvestmentTest.php
index 9c85b5e..6479ee7 100644
--- a/tests/Models/NullInvestmentTest.php
+++ b/tests/Models/NullInvestmentTest.php
@@ -47,6 +47,6 @@ final class NullInvestmentTest extends \PHPUnit\Framework\TestCase
     public function testJsonSerialize() : void
     {
         $null = new NullInvestment(2);
-        self::assertEquals(['id' => 2], $null);
+        self::assertEquals(['id' => 2], $null->jsonSerialize());
     }
 }