From a9ff9c091884d8410dd095b155cd645279ccdd9e Mon Sep 17 00:00:00 2001
From: Richard Lau <rlau@redhat.com>
Date: Sun, 18 Apr 2021 14:56:24 -0400
Subject: [PATCH] test: add ancestor package.json checks for tmpdir

Policy tests can fail if a `package.json` exists in any of the parent
directories above the test. The existing checks are done for the
ancestors of the test directory but some tests execute from the tmpdir.

PR-URL: https://github.com/nodejs/node/pull/38285
Refs: https://github.com/nodejs/node/issues/38088
Refs: https://github.com/nodejs/node/issues/35600
Refs: https://github.com/nodejs/node/pull/35633
Reviewed-By: Rich Trott <rtrott@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
---
 test/common/README.md                | 8 +++++---
 test/common/index.js                 | 4 ++--
 test/pummel/test-policy-integrity.js | 1 +
 3 files changed, 8 insertions(+), 5 deletions(-)

diff --git a/test/common/README.md b/test/common/README.md
index f064ab6e7e14be..a737bca2de5e9f 100644
--- a/test/common/README.md
+++ b/test/common/README.md
@@ -377,10 +377,12 @@ const { spawn } = require('child_process');
 spawn(...common.pwdCommand, { stdio: ['pipe'] });
 ```
 
-### `requireNoPackageJSONAbove()`
+### `requireNoPackageJSONAbove([dir])`
 
-Throws an `AssertionError` if a `package.json` file is in any ancestor
-directory. Such files may interfere with proper test functionality.
+* `dir` [&lt;string>][] default = \_\_dirname
+
+Throws an `AssertionError` if a `package.json` file exists in any ancestor
+directory above `dir`. Such files may interfere with proper test functionality.
 
 ### `runWithInvalidFD(func)`
 
diff --git a/test/common/index.js b/test/common/index.js
index 7480368a55ebb3..ae18ee6a75f10c 100644
--- a/test/common/index.js
+++ b/test/common/index.js
@@ -699,8 +699,8 @@ function gcUntil(name, condition) {
   });
 }
 
-function requireNoPackageJSONAbove() {
-  let possiblePackage = path.join(__dirname, '..', 'package.json');
+function requireNoPackageJSONAbove(dir = __dirname) {
+  let possiblePackage = path.join(dir, '..', 'package.json');
   let lastPackage = null;
   while (possiblePackage !== lastPackage) {
     if (fs.existsSync(possiblePackage)) {
diff --git a/test/pummel/test-policy-integrity.js b/test/pummel/test-policy-integrity.js
index 15124aefd46904..c29bb7a7b3f90e 100644
--- a/test/pummel/test-policy-integrity.js
+++ b/test/pummel/test-policy-integrity.js
@@ -76,6 +76,7 @@ function newTestId() {
   return nextTestId++;
 }
 tmpdir.refresh();
+common.requireNoPackageJSONAbove(tmpdir.path);
 
 let spawned = 0;
 const toSpawn = [];