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test: deflake child-process-pipe-dataflow 

Fixes: https://github.com/nodejs/node/issues/25988

PR-URL: https://github.com/nodejs/node/pull/40838
Reviewed-By: Michaël Zasso <targos@protonmail.com>
Reviewed-By: Tobias Nießen <tniessen@tnie.de>
Reviewed-By: Michael Dawson <midawson@redhat.com>
Reviewed-By: Rich Trott <rtrott@gmail.com>
This commit is contained in:
Luigi Pinca 2021-11-17 13:10:19 +01:00 committed by Rich Trott
parent 86e976f1f4
commit 0c2011c6c5
1 changed files with 6 additions and 6 deletions
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12
test/parallel/test-child-process-pipe-dataflow.js
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@ -3,7 +3,6 @@ const common = require('../common');
const assert = require('assert');
const path = require('path');
const fs = require('fs');
const os = require('os');
const spawn = require('child_process').spawn;
const tmpdir = require('../common/tmpdir');
@ -22,12 +21,13 @@ const MB = KB * KB;
const file = path.resolve(tmpdir.path, 'data.txt');
const buf = Buffer.alloc(MB).fill('x');
// Most OS commands that deal with data, attach special
// meanings to new line - for example, line buffering.
// So cut the buffer into lines at some points, forcing
// data flow to be split in the stream.
// Most OS commands that deal with data, attach special meanings to new line -
// for example, line buffering. So cut the buffer into lines at some points,
// forcing data flow to be split in the stream. Do not use os.EOL for \n as
// that is 2 characters on Windows and is sometimes converted to 1 character
// which causes the test to fail.
for (let i = 1; i < KB; i++)
buf.write(os.EOL, i * KB);
buf.write('\n', i * KB);
fs.writeFileSync(file, buf.toString());
cat = spawn('cat', [file]);