Fix unit tests on Nodejs prior 16

csstree · Jan 30, 2023 · 031f6ae · 031f6ae
1 parent a4f76aa
commit 031f6ae
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/test/utils/tester.js b/test/utils/tester.js
@@ -1,9 +1,10 @@
 // Reworked stylelint-rule-tester
 
 import assert, { deepStrictEqual } from 'assert';
-import { isRegExp } from 'util/types';
 import postcss from 'postcss';
 
+const isRegExp = value => toString.call(value) === '[object RegExp]';
+
 /**
  * Create a ruleTester for a specified rule.
  *