diff --git a/tests/src/Core/Logger/AbstractLoggerTest.php b/tests/src/Core/Logger/AbstractLoggerTest.php
index 2734158b5..d85e754c3 100644
--- a/tests/src/Core/Logger/AbstractLoggerTest.php
+++ b/tests/src/Core/Logger/AbstractLoggerTest.php
@@ -157,7 +157,7 @@ abstract class AbstractLoggerTest extends MockedTest
 
 		self::assertLogline($text);
 
-		self::assertStringContainsString(@json_encode($context), $text);
+		self::assertStringContainsString(@json_encode($context, JSON_UNESCAPED_SLASHES | JSON_UNESCAPED_UNICODE), $text);
 	}
 
 	/**
@@ -176,7 +176,7 @@ abstract class AbstractLoggerTest extends MockedTest
 
 		self::assertLogline($text);
 
-		self::assertStringContainsString(@json_encode($assertion), $this->getContent());
+		self::assertStringContainsString(@json_encode($assertion, JSON_UNESCAPED_SLASHES | JSON_UNESCAPED_UNICODE), $this->getContent());
 	}
 
 	public function testNoObjectHandling()