diff --git a/Magento2/Tests/Less/ImportantPropertyUnitTest.less b/Magento2/Tests/Less/ImportantPropertyUnitTest.less
new file mode 100644
index 00000000..0a0783ba
--- /dev/null
+++ b/Magento2/Tests/Less/ImportantPropertyUnitTest.less
@@ -0,0 +1,12 @@
+// /**
+//  * Copyright © Magento, Inc. All rights reserved.
+//  * See COPYING.txt for license details.
+//  */
+
+.correct-important-property {
+  background-color: green !important;
+}
+
+.incorrect-important-property {
+  background-color: red!important;
+}
diff --git a/Magento2/Tests/Less/ImportantPropertyUnitTest.php b/Magento2/Tests/Less/ImportantPropertyUnitTest.php
new file mode 100644
index 00000000..c3044415
--- /dev/null
+++ b/Magento2/Tests/Less/ImportantPropertyUnitTest.php
@@ -0,0 +1,27 @@
+<?php
+/**
+ * Copyright © Magento. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+namespace Magento2\Tests\Less;
+
+class ImportantPropertyUnitTest extends AbstractLessSniffUnitTestCase
+{
+    /**
+     * @inheritdoc
+     */
+    public function getErrorList()
+    {
+        return [
+            11 => 1
+        ];
+    }
+
+    /**
+     * @inheritdoc
+     */
+    public function getWarningList()
+    {
+        return [];
+    }
+}