From d9ed972563ff245f6c69fda1414761d0bde05445 Mon Sep 17 00:00:00 2001
From: Lenz Weber-Tronic <lorenz.weber-tronic@apollographql.com>
Date: Mon, 16 Oct 2023 11:47:34 +0200
Subject: [PATCH] MockedProvider: default `connectToDevTools: false`

---
 .changeset/lucky-coats-march.md      | 7 +++++++
 src/testing/react/MockedProvider.tsx | 3 +++
 2 files changed, 10 insertions(+)
 create mode 100644 .changeset/lucky-coats-march.md

diff --git a/.changeset/lucky-coats-march.md b/.changeset/lucky-coats-march.md
new file mode 100644
index 00000000000..e26c21c6cee
--- /dev/null
+++ b/.changeset/lucky-coats-march.md
@@ -0,0 +1,7 @@
+---
+"@apollo/client": patch
+---
+
+`MockedProvider`: default `connectToDevTools` to `false` in created `ApolloClient` instance.
+
+This will prevent the mocked `ApolloClient` instance from trying to connect to the DevTools, which would start a `setTimeout` that might keep running after a test has finished.
diff --git a/src/testing/react/MockedProvider.tsx b/src/testing/react/MockedProvider.tsx
index fcc3dfdb217..152be8ce8d1 100644
--- a/src/testing/react/MockedProvider.tsx
+++ b/src/testing/react/MockedProvider.tsx
@@ -20,6 +20,7 @@ export interface MockedProviderProps<TSerializedCache = {}> {
   children?: any;
   link?: ApolloLink;
   showWarnings?: boolean;
+  connectToDevTools?: boolean;
 }
 
 export interface MockedProviderState {
@@ -45,10 +46,12 @@ export class MockedProvider extends React.Component<
       resolvers,
       link,
       showWarnings,
+      connectToDevTools = false,
     } = this.props;
     const client = new ApolloClient({
       cache: cache || new Cache({ addTypename }),
       defaultOptions,
+      connectToDevTools,
       link: link || new MockLink(mocks || [], addTypename, { showWarnings }),
       resolvers,
     });