fix(types): augment jest matchers (#665)

vitest-dev · Feb 3, 2022 · 6565492 · 6565492
1 parent ce68e2b
commit 6565492
Showing 1 changed file with 7 additions and 1 deletion.
diff --git 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