From f38c05cb932dd7aba7a2aee2b3d4023700307c72 Mon Sep 17 00:00:00 2001
From: Simen Bekkhus <sbekkhus91@gmail.com>
Date: Wed, 20 Sep 2023 13:26:38 +0200
Subject: [PATCH] fix(jest-util): make sure `isInteractive` works in a browser
 (#14552)

---
 CHANGELOG.md                            |  1 +
 packages/jest-util/src/isInteractive.ts | 21 ++++++++++++++++++++-
 2 files changed, 21 insertions(+), 1 deletion(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 15c7ced02dc3..0d8bf5a32883 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -15,6 +15,7 @@
 - `[babel-plugin-jest-hoist]` Use `denylist` instead of the deprecated `blacklist` for Babel 8 support ([#14109](https://github.com/jestjs/jest/pull/14109))
 - `[@jest/expect-utils]` Fix comparison of `DataView` ([#14408](https://github.com/jestjs/jest/pull/14408))
 - `[jest-leak-detector]` Make leak-detector more aggressive when running GC ([#14526](https://github.com/jestjs/jest/pull/14526))
+- `[jest-util]` Make sure `isInteractive` works in a browser ([#14552](https://github.com/jestjs/jest/pull/14552))
 - `[pretty-format]` [**BREAKING**] Print `ArrayBuffer` and `DataView` correctly ([#14290](https://github.com/facebook/jest/pull/14290))
 
 ### Performance
diff --git a/packages/jest-util/src/isInteractive.ts b/packages/jest-util/src/isInteractive.ts
index 0cdfbb2a9f15..67023b0a2146 100644
--- a/packages/jest-util/src/isInteractive.ts
+++ b/packages/jest-util/src/isInteractive.ts
@@ -7,4 +7,23 @@
 
 import {isCI} from 'ci-info';
 
-export default !!process.stdout.isTTY && process.env.TERM !== 'dumb' && !isCI;
+function checkIsInteractive(): boolean {
+  if (isCI) {
+    return false;
+  }
+
+  // this can happen in a browser with polyfills: https://github.com/defunctzombie/node-process/issues/41
+  if (process.stdout == null) {
+    return false;
+  }
+
+  if (process.stdout.isTTY) {
+    return process.env.TERM !== 'dumb';
+  }
+
+  return false;
+}
+
+const isInteractive = checkIsInteractive();
+
+export default isInteractive;