diff --git a/tests/DependencyCompilerTest.php b/tests/DependencyCompilerTest.php
index 98f2cd3..be9c852 100644
--- a/tests/DependencyCompilerTest.php
+++ b/tests/DependencyCompilerTest.php
@@ -143,9 +143,10 @@ public function testDependencyObjectInstanceCompile(): void
     public function testDomainException(): void
     {
         $this->expectException(DomainException::class);
-        assert(class_exists(FakeInvalidDependency::class));
+        assert(class_exists(FakeInvalidDependency::class)); // to suppress phpstan false-positive
         $fake = new FakeInvalidDependency();
         assert($fake instanceof DependencyInterface); // @phpstan-ignore-line
+        // FakeInvalidDependency is not a valid dependency, so the DomainException is thrown.
         (new DependencyCode(new Container()))->getCode($fake);
     }