node-api,test: use local files for instanceof tests

[vmoroz]

Make Node-API instanceof tests independent from V8 code.

Currently test/js-native-api/test_general/testInstanceOf.js test file depends on two files from the V8 code:

• deps/v8/test/mjsunit/instanceof.js
• deps/v8/test/mjsunit/instanceof-2.js

While it works for the Node.js project, it makes it difficult to reuse these tests for other JS engines and JS runtimes.

In this PR we copy and adapt contents of these two V8 files to testV8Instanceof.js and testV8Instanceof2.js files.
These are exactly the same tests as before, but they are now local to the test/js-native-api/test_general test.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 88.58%. Comparing base (bfc81ca) to head (c3de100).
⚠️ Report is 132 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main   #60190      +/-   ##
==========================================
+ Coverage   88.55%   88.58%   +0.02%     
==========================================
  Files         704      704              
  Lines      208087   207774     -313     
  Branches    40019    40025       +6     
==========================================
- Hits       184266   184048     -218     
+ Misses      15818    15783      -35     
+ Partials     8003     7943      -60     

see 152 files with indirect coverage changes

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.
• 📦 JS Bundle Analysis: Save yourself from yourself by tracking and limiting bundle sizes in JS merges.

[nodejs-github-bot]

CI: https://ci.nodejs.org/job/node-test-pull-request/69888/

[nodejs-github-bot]

CI: https://ci.nodejs.org/job/node-test-pull-request/69899/

[nodejs-github-bot]

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----------------------------------- PR info ------------------------------------
Title      node-api,test: use local files for `instanceof` tests (#60190)
Author     Vladimir Morozov <[email protected]> (@vmoroz)
Branch     vmoroz:pr/update-instanceof-test -> nodejs:main
Labels     test, node-api, author ready, needs-ci
Commits    3
 - node-api: use local files for instanceof test
 - fix linter issues
 - use Node.js assert API directly
Committers 1
 - Vladimir Morozov <[email protected]>
PR-URL: https://github.com/nodejs/node/pull/60190
Reviewed-By: Chengzhong Wu <[email protected]>
------------------------------ Generated metadata ------------------------------
PR-URL: https://github.com/nodejs/node/pull/60190
Reviewed-By: Chengzhong Wu <[email protected]>
--------------------------------------------------------------------------------
   ℹ  This PR was created on Fri, 10 Oct 2025 05:20:06 GMT
   ✔  Approvals: 1
   ✔  - Chengzhong Wu (@legendecas) (TSC): https://github.com/nodejs/node/pull/60190#pullrequestreview-3381131414
   ✔  Last GitHub CI successful
   ℹ  Last Full PR CI on 2025-10-27T10:37:01Z: https://ci.nodejs.org/job/node-test-pull-request/69899/
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From https://github.com/nodejs/node
 * branch                  main       -> FETCH_HEAD
   eea19fa03c..d9cf867a9d  main       -> origin/main
✔  origin/main is now up-to-date
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 - d9cf867a9d lib: fix typo in createBlobReaderStream
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 * branch                  refs/pull/60190/merge -> FETCH_HEAD
✔  Fetched commits as fd7b33e763e7..c3de10078c6a
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[main 44247bff55] node-api: use local files for instanceof test
 Author: Vladimir Morozov <[email protected]>
 Date: Thu Oct 9 20:27:11 2025 -0700
 3 files changed, 462 insertions(+), 49 deletions(-)
 create mode 100644 test/js-native-api/test_general/testV8Instanceof.js
 create mode 100644 test/js-native-api/test_general/testV8Instanceof2.js
[main c3c835a6b0] fix linter issues
 Author: Vladimir Morozov <[email protected]>
 Date: Fri Oct 10 07:17:38 2025 -0700
 2 files changed, 295 insertions(+), 292 deletions(-)
[main 7aa7ea5532] use Node.js assert API directly
 Author: Vladimir Morozov <[email protected]>
 Date: Fri Oct 24 12:10:13 2025 -0700
 2 files changed, 28 insertions(+), 53 deletions(-)
   ✔  Patches applied
There are 3 commits in the PR. Attempting autorebase.
Rebasing (2/6)
Executing: git node land --amend --yes
--------------------------------- New Message ----------------------------------
node-api: use local files for instanceof test
PR-URL: #60190

Reviewed-By: Chengzhong Wu <[email protected]>
[detached HEAD dd225eef83] node-api: use local files for instanceof test

Author: Vladimir Morozov <[email protected]>

Date: Thu Oct 9 20:27:11 2025 -0700

3 files changed, 462 insertions(+), 49 deletions(-)

create mode 100644 test/js-native-api/test_general/testV8Instanceof.js

create mode 100644 test/js-native-api/test_general/testV8Instanceof2.js

Rebasing (3/6)

Rebasing (4/6)

Executing: git node land --amend --yes

--------------------------------- New Message ----------------------------------

fix linter issues
PR-URL: #60190

Reviewed-By: Chengzhong Wu <[email protected]>
[detached HEAD b17b84f6f9] fix linter issues

Author: Vladimir Morozov <[email protected]>

Date: Fri Oct 10 07:17:38 2025 -0700

2 files changed, 295 insertions(+), 292 deletions(-)

Rebasing (5/6)

Rebasing (6/6)

Executing: git node land --amend --yes

--------------------------------- New Message ----------------------------------

use Node.js assert API directly
PR-URL: #60190

Reviewed-By: Chengzhong Wu <[email protected]>
[detached HEAD c475cf8916] use Node.js assert API directly

Author: Vladimir Morozov <[email protected]>

Date: Fri Oct 24 12:10:13 2025 -0700

2 files changed, 28 insertions(+), 53 deletions(-)

Successfully rebased and updated refs/heads/main.
ℹ  Add commit-queue-squash label to land the PR as one commit, or commit-queue-rebase to land as separate commits.

https://github.com/nodejs/node/actions/runs/18843829559

[nodejs-github-bot]

Landed in 77d8197