From 9317925f1afa556a00990930025a0ca9cc069c0f Mon Sep 17 00:00:00 2001
From: chentsulin <chentsulin@gmail.com>
Date: Sun, 23 Jan 2022 14:15:58 +0800
Subject: [PATCH] fix(toHaveProperty): add a fix for .toHaveProperty('')

---
 packages/expect/src/utils.ts | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/packages/expect/src/utils.ts b/packages/expect/src/utils.ts
index 725289ebb3a4..9e546c303c26 100644
--- a/packages/expect/src/utils.ts
+++ b/packages/expect/src/utils.ts
@@ -373,9 +373,15 @@ export const partition = <T>(
 };
 
 export const pathAsArray = (propertyPath: string): Array<any> => {
+  const properties: Array<string> = [];
+
+  if (propertyPath === '') {
+    properties.push('');
+    return properties;
+  }
+
   // will match everything that's not a dot or a bracket, and "" for consecutive dots.
   const pattern = RegExp('[^.[\\]]+|(?=(?:\\.)(?:\\.|$))', 'g');
-  const properties: Array<string> = [];
 
   // Because the regex won't match a dot in the beginning of the path, if present.
   if (propertyPath[0] === '.') {