diff --git a/phpunit.xml b/phpunit.xml
new file mode 100644
index 0000000..9dacde5
--- /dev/null
+++ b/phpunit.xml
@@ -0,0 +1,15 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<phpunit xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:noNamespaceSchemaLocation="vendor/phpunit/phpunit/phpunit.xsd"
+         bootstrap="vendor/autoload.php"
+         colors="true"
+>
+    <testsuites>
+        <testsuite name="Unit">
+            <directory>tests/Unit</directory>
+        </testsuite>
+    </testsuites>
+    <php>
+        <const name="ARE_TESTS_RUNNING" value="true"/>
+    </php>
+</phpunit>
\ No newline at end of file
diff --git a/src/Treblle.php b/src/Treblle.php
index 678b760..ece6062 100644
--- a/src/Treblle.php
+++ b/src/Treblle.php
@@ -149,7 +149,7 @@ public function onShutdown(): void
             $payload = '{}';
         }
 
-        if (!\function_exists('pcntl_fork')) {
+        if (!\function_exists('pcntl_fork') || (\defined('ARE_TESTS_RUNNING') && ARE_TESTS_RUNNING)) {
             $this->collectData($payload);
 
             return;