From 1e15a27553ad6bc8a039f566ca1e0772cdcf1ce4 Mon Sep 17 00:00:00 2001
From: Simen Bekkhus <sbekkhus91@gmail.com>
Date: Sat, 20 Mar 2021 09:59:36 +0100
Subject: [PATCH] use browser-version of source-map-support

---
 .../src/deepCyclicCopyReplaceable.ts          |  7 ++++--
 packages/jest-runner/src/runTest.ts           | 23 ++++++++++++++-----
 packages/jest-runtime/src/index.ts            | 13 +++++++----
 3 files changed, 30 insertions(+), 13 deletions(-)

diff --git a/packages/jest-matcher-utils/src/deepCyclicCopyReplaceable.ts b/packages/jest-matcher-utils/src/deepCyclicCopyReplaceable.ts
index 8928927b8d2d..9c3dd0ac9d26 100644
--- a/packages/jest-matcher-utils/src/deepCyclicCopyReplaceable.ts
+++ b/packages/jest-matcher-utils/src/deepCyclicCopyReplaceable.ts
@@ -7,9 +7,8 @@
 
 import {plugins} from 'pretty-format';
 
-const builtInObject = [
+const builtInObject: Array<unknown> = [
   Array,
-  Buffer,
   Date,
   Float32Array,
   Float64Array,
@@ -25,6 +24,10 @@ const builtInObject = [
   Uint8ClampedArray,
 ];
 
+if (typeof Buffer !== 'undefined') {
+  builtInObject.push(Buffer);
+}
+
 const isBuiltInObject = (object: any) =>
   builtInObject.includes(object.constructor);
 
diff --git a/packages/jest-runner/src/runTest.ts b/packages/jest-runner/src/runTest.ts
index 4e8237c283ec..1581461e7894 100644
--- a/packages/jest-runner/src/runTest.ts
+++ b/packages/jest-runner/src/runTest.ts
@@ -206,13 +206,24 @@ async function runTestInternal(
     },
   };
 
+  const isBrowserEnv = typeof environment.global?.document !== 'undefined';
+
   // For tests
-  runtime
-    .requireInternalModule<typeof import('source-map-support')>(
-      require.resolve('source-map-support'),
-      'source-map-support',
-    )
-    .install(sourcemapOptions);
+  if (isBrowserEnv) {
+    runtime.requireInternalModule(
+      require.resolve('source-map-support/browser-source-map-support'),
+    );
+    const sourceMapSupport = environment.global
+      .sourceMapSupport as typeof sourcemapSupport;
+
+    sourceMapSupport.install({...sourcemapOptions, environment: 'browser'});
+  } else {
+    runtime
+      .requireInternalModule<typeof sourcemapSupport>(
+        require.resolve('source-map-support'),
+      )
+      .install(sourcemapOptions);
+  }
 
   // For runtime errors
   sourcemapSupport.install(sourcemapOptions);
diff --git a/packages/jest-runtime/src/index.ts b/packages/jest-runtime/src/index.ts
index 04521637efc0..5e2b20cf20cc 100644
--- a/packages/jest-runtime/src/index.ts
+++ b/packages/jest-runtime/src/index.ts
@@ -652,12 +652,10 @@ export default class Runtime {
 
     if (options?.isInternalModule) {
       moduleRegistry = this._internalModuleRegistry;
+    } else if (this._isolatedModuleRegistry) {
+      moduleRegistry = this._isolatedModuleRegistry;
     } else {
-      if (this._isolatedModuleRegistry) {
-        moduleRegistry = this._isolatedModuleRegistry;
-      } else {
-        moduleRegistry = this._moduleRegistry;
-      }
+      moduleRegistry = this._moduleRegistry;
     }
 
     const module = moduleRegistry.get(modulePath);
@@ -1823,6 +1821,11 @@ export default class Runtime {
       throw moduleNotFoundError;
     }
 
+    e.message = `Jest: Got error evaluating ${path.relative(
+      this._config.rootDir,
+      module.filename,
+    )}.\n${e.message}`;
+
     throw e;
   }