diff --git a/tests/TestEnvironmentTest.php b/tests/TestEnvironmentTest.php
new file mode 100644
index 000000000..5a1237912
--- /dev/null
+++ b/tests/TestEnvironmentTest.php
@@ -0,0 +1,19 @@
+<?php
+
+namespace Psalm\Tests;
+
+use PHPUnit\Framework\TestCase as PHPUnitTestCase;
+
+use function ini_get;
+
+class TestEnvironmentTest extends PHPUnitTestCase
+{
+    public function testIniSettings(): void
+    {
+        $this->assertSame(
+            '1',
+            ini_get('zend.assertions'),
+            'zend.assertions should be set to 1 to increase test strictness',
+        );
+    }
+}