From 65654928865317782536e55c0004b3e0296dfa62 Mon Sep 17 00:00:00 2001
From: Vladimir <sheremet.va@icloud.com>
Date: Thu, 3 Feb 2022 05:14:49 +0300
Subject: [PATCH] fix(types): augment jest matchers (#665)

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

diff --git a/packages/vitest/src/index.ts b/packages/vitest/src/index.ts
index 0c0e68d1dbe8..0801dd93bc38 100644
--- a/packages/vitest/src/index.ts
+++ b/packages/vitest/src/index.ts
@@ -41,6 +41,12 @@ type Promisify<O> = {
 }
 
 declare global {
+  // support augmenting jest.Matchers by other libraries
+  namespace jest {
+    // eslint-disable-next-line @typescript-eslint/no-unused-vars
+    interface Matchers<R, T = {}> {}
+  }
+
   namespace Vi {
     interface ExpectStatic extends Chai.ExpectStatic, AsymmetricMatchersContaining {
       <T>(actual: T, message?: string): Vi.Assertion<T>
@@ -56,7 +62,7 @@ declare global {
       not: AsymmetricMatchersContaining
     }
 
-    interface JestAssertion<T = any> {
+    interface JestAssertion<T = any> extends jest.Matchers<void, T> {
       // Snapshot
       toMatchSnapshot<U extends { [P in keyof T]: any }>(snapshot: Partial<U>, message?: string): void
       toMatchSnapshot(message?: string): void