lib: ensure FORCE_COLOR forces color output in non-TTY environments #55404

pmarchini · 2024-10-16T12:28:24Z

This PR should address #55383.

nodejs-github-bot · 2024-10-16T12:28:29Z

Review requested:

@nodejs/test_runner

RedYetiDev · 2024-10-16T12:29:26Z

The subsystem here shouldn't be test, it should be lib

pmarchini · 2024-10-16T12:30:29Z

Thanks @RedYetiDev, I was not sure about this, gonna change it!

RedYetiDev · 2024-10-16T12:30:45Z

test/parallel/test-runner-output.mjs

+  {
+    name: 'test-runner/output/non-tty-forced-color-output.js',
+    flags: ['--test-reporter=spec'],
+  },


Instead of testing the test runner, IMO add a test where a non-TTY FORCE_COLOR is used.

This change isn't specific to the test runner

Although, I had some weird test failures when doing that (unrelated to the change, more how the test was setup), so if that's not possible, this works.

You’re right, I added the test to cover the fix for the specific issue.
We should add tests to cover every use.
But does it make sense, considering we would be adding tests to parts of the codebase that are "out of scope"? Also, I wouldn't feel confident about the quality of the tests I’d add in this way.

Also, should this change be considered a breaking change since it changes the evident behaviour?

IMO it's not breaking, it's a bug fix

codecov · 2024-10-16T14:58:13Z

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 88.41%. Comparing base (b0ffe9e) to head (dd82e49).
Report is 261 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main   #55404      +/-   ##
==========================================
- Coverage   88.42%   88.41%   -0.01%     
==========================================
  Files         653      653              
  Lines      187498   187496       -2     
  Branches    36100    36103       +3     
==========================================
- Hits       165791   165783       -8     
- Misses      14957    14960       +3     
- Partials     6750     6753       +3

Files with missing lines	Coverage Δ
lib/internal/util/colors.js	`100.00% <100.00%> (ø)`

... and 24 files with indirect coverage changes

RedYetiDev · 2024-10-16T15:04:39Z

Fixes #55383
Fixes #52249

nodejs-github-bot · 2024-10-16T20:03:23Z

CI: https://ci.nodejs.org/job/node-test-pull-request/63147/

nodejs-github-bot · 2024-10-16T21:06:34Z

CI: https://ci.nodejs.org/job/node-test-pull-request/63148/

nodejs-github-bot · 2024-10-17T06:11:09Z

CI: https://ci.nodejs.org/job/node-test-pull-request/63154/

pmarchini · 2024-10-17T09:43:50Z

Fixes #55383 Fixes #52249

Regarding #52249, I would say we have two ways to ensure the fix:

Add a test in this PR to confirm that the issue is indeed resolved.
After this PR gets merged, open another PR with a test to ensure the fix and close the issue.

Given

node/lib/internal/test_runner/harness.js

Lines 66 to 69 in e2242b4

    
           counters: null, 
        
           shouldColorizeTestFiles: shouldColorizeTestFiles(globalOptions.destinations), 
        
           teardown: null, 
        
           snapshotManager: null,

I believe this PR should resolve both issues, as you suggest 😁.

Personally, I would go with option 1.

WDYT @RedYetiDev @cjihrig

RedYetiDev · 2024-10-17T10:58:23Z

I'd go with 1

mcollina

lgtm

cjihrig · 2024-10-17T13:00:35Z

Option 1 sounds good.

pmarchini · 2024-10-17T19:21:47Z

test/parallel/test-runner-output.mjs

+  },
+  {
+    name: 'test-runner/output/assertion-color-tty.mjs',
+    flags: ['--test', '--stack-trace-limit=0'],


Hey @cjihrig, I had to add the --stack-trace-limit=0 flag because modifying

node/test/common/assertSnapshot.js

Lines 7 to 9 in 4d6d7d6

const stackFramesRegexp = /(?<=\n)(\s+)((.+?)\s+$)?(?:\(?(.+?):(\d+)(?::(\d+))?)$?(\s+\{)?(\[\d+m)?(\n|$)/g;

const windowNewlineRegexp = /\r/g;

to match colored stack traces also seems a little painful.

Do you think it's acceptable?

Yes, that's fine IMO.

pmarchini · 2024-10-17T21:43:25Z

While working on the tests I've seen this behaviour:

This comes from this recently merged PR #54862.

import assert from 'node:assert/strict'
import { test } from 'node:test'

test('failing assertion', () => {
  assert.strictEqual('apple', 'pear')
})

results in:

Honestly I've mixed feelings about this from a devEx pov.

@nodejs/test_runner @nodejs/assert

jasnell · 2024-10-20T22:28:03Z

lib/internal/util/colors.js

+    const hasColors = module.exports.shouldColorize(process.stderr);
+    module.exports.blue = hasColors ? '\u001b[34m' : '';
+    module.exports.green = hasColors ? '\u001b[32m' : '';
+    module.exports.white = hasColors ? '\u001b[39m' : '';
+    module.exports.yellow = hasColors ? '\u001b[33m' : '';
+    module.exports.red = hasColors ? '\u001b[31m' : '';
+    module.exports.gray = hasColors ? '\u001b[90m' : '';
+    module.exports.clear = hasColors ? '\u001bc' : '';
+    module.exports.reset = hasColors ? '\u001b[0m' : '';
+    module.exports.hasColors = hasColors;


Non-blocking and admittedly more verbose (and I know not introduced in this PR) but I'd generally prefer something like the following instead.

Suggested change

const hasColors = module.exports.shouldColorize(process.stderr);

module.exports.blue = hasColors ? '\u001b[34m' : '';

module.exports.green = hasColors ? '\u001b[32m' : '';

module.exports.white = hasColors ? '\u001b[39m' : '';

module.exports.yellow = hasColors ? '\u001b[33m' : '';

module.exports.red = hasColors ? '\u001b[31m' : '';

module.exports.gray = hasColors ? '\u001b[90m' : '';

module.exports.clear = hasColors ? '\u001bc' : '';

module.exports.reset = hasColors ? '\u001b[0m' : '';

module.exports.hasColors = hasColors;

if (module.exports.shouldColorize(process.stderr)) {

module.exports.blue = '\u001b[34m';

module.exports.green = '\u001b[32m';

module.exports.white = '\u001b[39m';

module.exports.yellow = '\u001b[33m';

module.exports.red = '\u001b[31m';

module.exports.gray = '\u001b[90m';

module.exports.clear = '\u001bc';

module.exports.reset = '\u001b[0m';

module.exports.hasColors = true;

} else {

module.exports.blue = '';

module.exports.green = ';

module.exports.white = ';

module.exports.yellow = ';

module.exports.red = '';

module.exports.gray = '';

module.exports.clear = '';

module.exports.reset = '';

module.exports.hasColors = false;

}

Hey @jasnell, thanks for the review.
I don't have strong opinions on this specific case, but in general, I think the more readable, the better.

We would have some repetitions, but I think it would be worth it.

Up to you 🚀 If you want, I can use this PR to address this readability issue as well 😁

The CI is green now, maybe consider doing a follow up PR (I agree with suggested change though).

I agree, also because I have the impression that osx CI has been a little unstable in the last two days

nodejs-github-bot · 2024-10-21T08:37:05Z

CI: https://ci.nodejs.org/job/node-test-pull-request/63228/

nodejs-github-bot · 2024-10-21T10:35:35Z

CI: https://ci.nodejs.org/job/node-test-pull-request/63229/

nodejs-github-bot · 2024-10-21T16:00:44Z

CI: https://ci.nodejs.org/job/node-test-pull-request/63235/

nodejs-github-bot · 2024-10-21T17:47:02Z

CI: https://ci.nodejs.org/job/node-test-pull-request/63239/

nodejs-github-bot · 2024-10-21T22:58:02Z

CI: https://ci.nodejs.org/job/node-test-pull-request/63243/

nodejs-github-bot · 2024-10-23T06:51:52Z

Landed in 025d8ad

PR-URL: #55404 Reviewed-By: Luigi Pinca <[email protected]> Reviewed-By: Jake Yuesong Li <[email protected]> Reviewed-By: Matteo Collina <[email protected]> Reviewed-By: Chemi Atlow <[email protected]> Reviewed-By: Moshe Atlow <[email protected]> Reviewed-By: James M Snell <[email protected]>

PR-URL: nodejs#55404 Reviewed-By: Luigi Pinca <[email protected]> Reviewed-By: Jake Yuesong Li <[email protected]> Reviewed-By: Matteo Collina <[email protected]> Reviewed-By: Chemi Atlow <[email protected]> Reviewed-By: Moshe Atlow <[email protected]> Reviewed-By: James M Snell <[email protected]>

PR-URL: #55404 Reviewed-By: Luigi Pinca <[email protected]> Reviewed-By: Jake Yuesong Li <[email protected]> Reviewed-By: Matteo Collina <[email protected]> Reviewed-By: Chemi Atlow <[email protected]> Reviewed-By: Moshe Atlow <[email protected]> Reviewed-By: James M Snell <[email protected]>

ruyadorno · 2024-11-27T16:18:29Z

This commit does land cleanly on v22.x-staging but make tests fail and will need manual backport in case we want it in v22.x.

nodejs-github-bot added needs-ci PRs that need a full CI run. util Issues and PRs related to the built-in util module. labels Oct 16, 2024

RedYetiDev reviewed Oct 16, 2024

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pmarchini force-pushed the issue/55383 branch from 57e19b4 to 05ae05f Compare October 16, 2024 12:31

pmarchini changed the title ~~test: ensure FORCE_COLOR forces color output in non-TTY environments~~ lib: ensure FORCE_COLOR forces color output in non-TTY environments Oct 16, 2024

RedYetiDev added the lib / src Issues and PRs related to general changes in the lib or src directory. label Oct 16, 2024

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pmarchini requested review from cjihrig and jakecastelli October 17, 2024 09:35

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pmarchini force-pushed the issue/55383 branch from 60cb508 to 28a532e Compare October 17, 2024 21:37

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pmarchini added 2 commits October 20, 2024 16:54

test: update fixture

b74485e

test: add canColorize

dd82e49

pmarchini force-pushed the issue/55383 branch from 28a532e to dd82e49 Compare October 20, 2024 15:48

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pmarchini mentioned this pull request Oct 21, 2024

assert: fix the string length check for printing the simple diff #55474

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nodejs-github-bot merged commit 025d8ad into nodejs:main Oct 23, 2024
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aduh95 mentioned this pull request Oct 24, 2024

V23.1.0 proposal #55513

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Unable to FORCE_COLOR with test runner #55383

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lib: refactor code to improve readability #55995

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lib: ensure FORCE_COLOR forces color output in non-TTY environments #55404

lib: ensure FORCE_COLOR forces color output in non-TTY environments #55404

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ruyadorno commented Nov 27, 2024 •

edited by aduh95

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	const stackFramesRegexp = /(?<=\n)(\s+)((.+?)\s+\()?(?:\(?(.+?):(\d+)(?::(\d+))?)\)?(\s+\{)?(\[\d+m)?(\n\|$)/g;
	const windowNewlineRegexp = /\r/g;

-    const hasColors = module.exports.shouldColorize(process.stderr);
-    module.exports.blue = hasColors ? '\u001b[34m' : '';
-    module.exports.green = hasColors ? '\u001b[32m' : '';
-    module.exports.white = hasColors ? '\u001b[39m' : '';
-    module.exports.yellow = hasColors ? '\u001b[33m' : '';
-    module.exports.red = hasColors ? '\u001b[31m' : '';
-    module.exports.gray = hasColors ? '\u001b[90m' : '';
-    module.exports.clear = hasColors ? '\u001bc' : '';
-    module.exports.reset = hasColors ? '\u001b[0m' : '';
-    module.exports.hasColors = hasColors;
+    if (module.exports.shouldColorize(process.stderr)) {
+      module.exports.blue = '\u001b[34m';
+      module.exports.green = '\u001b[32m';
+      module.exports.white = '\u001b[39m';
+      module.exports.yellow = '\u001b[33m';
+      module.exports.red = '\u001b[31m';
+      module.exports.gray = '\u001b[90m';
+      module.exports.clear = '\u001bc';
+      module.exports.reset = '\u001b[0m';
+      module.exports.hasColors = true;
+    } else {
+      module.exports.blue = '';
+      module.exports.green = ';
+      module.exports.white = ';
+      module.exports.yellow = ';
+      module.exports.red = '';
+      module.exports.gray = '';
+      module.exports.clear = '';
+      module.exports.reset = '';
+      module.exports.hasColors = false;
+    }

lib: ensure FORCE_COLOR forces color output in non-TTY environments #55404

lib: ensure FORCE_COLOR forces color output in non-TTY environments #55404

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