From c6221eb4fe29ddf8a09f7fdb4277758716269bd6 Mon Sep 17 00:00:00 2001
From: Asko Nõmm <asko@nth.ee>
Date: Fri, 15 Nov 2024 17:36:55 +0200
Subject: Improve tests.

---
 tests/FormatTest.php | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

(limited to 'tests/FormatTest.php')

diff --git a/tests/FormatTest.php b/tests/FormatTest.php
index 06f30a3..4d9dde0 100644
--- a/tests/FormatTest.php
+++ b/tests/FormatTest.php
@@ -43,6 +43,21 @@ class FormatTest extends MockeryTestCase
         $this->assertEquals($expectedJson, $serializedMessage);
     }
 
+    public function testJsonFails(): void
+    {
+        $message = new Message(
+            level: Level::Info,
+            trace: debug_backtrace()[0],
+            context: NAN,
+        );
+
+        $format = Format::JSON;
+        $serializedMessage = $format->serialize($message);
+        $expectedJson = '';
+
+        $this->assertEquals($expectedJson, $serializedMessage);
+    }
+
     public function testIntelliJ(): void
     {
         $message = new Message(
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