diff --git a/lib/command/utils.js b/lib/command/utils.js
index afac49fe0..b7618f85d 100644
--- a/lib/command/utils.js
+++ b/lib/command/utils.js
@@ -16,7 +16,7 @@ module.exports.getConfig = function (configFile) {
 function getTestRoot(currentPath) {
   if (!currentPath) currentPath = '.';
   if (!path.isAbsolute(currentPath)) currentPath = path.join(process.cwd(), currentPath);
-  return currentPath = !path.extname(currentPath) ? currentPath : path.dirname(currentPath);
+  return currentPath = fs.lstatSync(currentPath).isDirectory() || !path.extname(currentPath) ? currentPath : path.dirname(currentPath);
 }
 module.exports.getTestRoot = getTestRoot;