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nodejs/test/parallel/test-child-process-stdio-reuse-readable-stdio.js
Joyee Cheung dac5f29691
test: skip test-child-process-stdio-reuse-readable-stdio on Windows
It is flaky due to the same cause of test-child-process-pipe-dataflow
being flaky - cygwin quirks - so skip it on Windows too.

Drive-by: remove the skip mark of test-child-process-pipe-dataflow
in the status file and directly skip it in the test with a comment.

PR-URL: https://github.com/nodejs/node/pull/49621
Reviewed-By: Debadree Chatterjee <debadree333@gmail.com>
Reviewed-By: Michaël Zasso <targos@protonmail.com>
Reviewed-By: LiviaMedeiros <livia@cirno.name>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Moshe Atlow <moshe@atlow.co.il>
2023-09-14 21:23:46 +00:00

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'use strict';
const common = require('../common');
if (common.isWindows) {
// https://github.com/nodejs/node/issues/48300
common.skip('Does not work with cygwin quirks on Windows');
}
const assert = require('assert');
const { spawn } = require('child_process');
// Check that, once a child process has ended, its safe to read from a pipe
// that the child had used as input.
// We simulate that using cat | (head -n1; ...)
const p1 = spawn('cat', { stdio: ['pipe', 'pipe', 'inherit'] });
const p2 = spawn('head', ['-n1'], { stdio: [p1.stdout, 'pipe', 'inherit'] });
// First, write the line that gets passed through p2, making 'head' exit.
p1.stdin.write('hello\n');
p2.stdout.setEncoding('utf8');
p2.stdout.on('data', common.mustCall((chunk) => {
assert.strictEqual(chunk, 'hello\n');
}));
p2.on('exit', common.mustCall(() => {
// We can now use cats output, because 'head' is no longer reading from it.
p1.stdin.end('world\n');
p1.stdout.setEncoding('utf8');
p1.stdout.on('data', common.mustCall((chunk) => {
assert.strictEqual(chunk, 'world\n');
}));
p1.stdout.resume();
}));