From 17f09bc1d6f8e782546f5f5151a0f33d72596a0f Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Leosvel=20P=C3=A9rez=20Espinosa?=
 <leosvel.perez.espinosa@gmail.com>
Date: Wed, 14 Aug 2024 16:48:43 +0200
Subject: [PATCH] fix(testing): resolve jest utils in plugin from the
 @jest/core package location that jest uses (#27422)

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## Current Behavior
<!-- This is the behavior we have today -->

In the `@nx/jest/plugin` some jest utils are imported from the location
of the `jest` package to ensure the plugin uses the same utils the
`jest` package would use. This is not entirely correct because the
`jest` package doesn't directly depend on those utils, so they might not
be resolved correctly.

## Expected Behavior
<!-- This is the behavior we should expect with the changes in this PR
-->

The `@nx/jest/plugin` should import those jest utils from the location
of the `@jest/core` package resolved from the `jest` package location,
to ensure the plugin uses the same utils the `jest` package would use.

## Related Issue(s)
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merged. -->

Fixes #
---
 packages/jest/src/plugins/plugin.ts | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

diff --git a/packages/jest/src/plugins/plugin.ts b/packages/jest/src/plugins/plugin.ts
index fdcb33388b..4311cd2ae2 100644
--- a/packages/jest/src/plugins/plugin.ts
+++ b/packages/jest/src/plugins/plugin.ts
@@ -436,6 +436,7 @@ function resolveJestPath(projectRoot: string, workspaceRoot: string): string {
   return resolvedJestPaths[projectRoot];
 }
 
+let resolvedJestCorePaths: Record<string, string>;
 /**
  * Resolves a jest util package version that `jest` is using.
  */
@@ -446,5 +447,15 @@ function requireJestUtil<T>(
 ): T {
   const jestPath = resolveJestPath(projectRoot, workspaceRoot);
 
-  return require(require.resolve(packageName, { paths: [dirname(jestPath)] }));
+  resolvedJestCorePaths ??= {};
+  if (!resolvedJestCorePaths[jestPath]) {
+    // nx-ignore-next-line
+    resolvedJestCorePaths[jestPath] = require.resolve('@jest/core', {
+      paths: [dirname(jestPath)],
+    });
+  }
+
+  return require(require.resolve(packageName, {
+    paths: [dirname(resolvedJestCorePaths[jestPath])],
+  }));
 }