Test that it cannot read constants from the analyzing file

Author: Bellangelo

tests/PHPStan/Rules/Keywords/RequireFileExistsRuleTest.php

@@ -0,0 +1,24 @@
+<?php declare(strict_types=1);
+
+namespace PHPStan\Rules\Keywords;
+
+use PHPStan\Testing\RuleTestCase;
+use PHPStan\Rules\Keywords\RequireFileExistsRule;
+use PHPStan\Rules\Rule;
+
+
+/**
+ * @extends RuleTestCase<RequireFileExistsRule>
+ */
+class RequireFileExistsRuleTest extends RuleTestCase
+{
+	protected function getRule(): Rule
+	{
+		return new RequireFileExistsRule($this->createReflectionProvider());
+	}
+
+	public function testItCannotReadConstantsDefinedInTheAnalysedFile(): void
+	{
+		$this->analyse([__DIR__ . '/data/file-does-not-exist-but-const-is-defined-in-the-same-file.php'], []);
+	}
+}

tests/PHPStan/Rules/Keywords/data/file-does-not-exist-but-const-is-defined-in-the-same-file.php

@@ -0,0 +1,8 @@
+<?php declare(strict_types=1);
+
+define('FILE_DOES_NOT_EXIST_INLINE', 'a_file_that_does_not_exist.txt');
+
+include __DIR__ . '/' . FILE_DOES_NOT_EXIST_INLINE;
+include_once __DIR__ . '/' . FILE_DOES_NOT_EXIST_INLINE;
+require __DIR__ . '/' . FILE_DOES_NOT_EXIST_INLINE;
+require_once __DIR__ . '/' . FILE_DOES_NOT_EXIST_INLINE;