Test that it cannot read variables

Author: Bellangelo

tests/PHPStan/Rules/Keywords/RequireFileExistsRuleTest.php

@@ -87,4 +87,9 @@ public function testFileDoesNotExistButUsesClassProperties(): void
 	{
 		$this->analyse([__DIR__ . '/data/file-does-not-exist-but-uses-a-class-property.php'], []);
 	}
+
+	public function testFileDoesNotExistButUsesVariables(): void
+	{
+		$this->analyse([__DIR__ . '/data/file-does-not-exist-but-uses-a-variable.php'], []);
+	}
 }

tests/PHPStan/Rules/Keywords/data/file-does-not-exist-but-uses-a-variable.php

@@ -0,0 +1,8 @@
+<?php declare(strict_types=1);
+
+$includedFile = 'a-file-that-does-not-exist.php';
+
+include $includedFile;
+include_once $includedFile;
+require $includedFile;
+require_once $includedFile;