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test: fix spawn on windows #7049

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mscdex
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@mscdex mscdex commented May 29, 2016

Checklist
  • tests and code linting passes
  • the commit message follows commit guidelines
Affected core subsystem(s)
  • test
Description of change

Most Windows systems do not have an external echo program installed, so any attempts to spawn echo as a child process will fail with ENOENT. This commit forces the use of the built-in echo provided by cmd.exe.

@mscdex mscdex added child_process Issues and PRs related to the child_process subsystem. windows Issues and PRs related to the Windows platform. test Issues and PRs related to the tests. labels May 29, 2016
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mscdex commented May 29, 2016

@@ -3,7 +3,13 @@ const cp = require('child_process');
const common = require('../common');
const assert = require('assert');

const p = cp.spawn('echo');
const opts = {};
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Could you just do const opts = {shell: common.isWindows};

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Changed.

@cjihrig
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cjihrig commented May 29, 2016

LGTM. How was this working on the CI machines?

@mscdex
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mscdex commented May 29, 2016

@cjihrig Probably they have some sort of mingw/cygwin/etc. environment installed? I noticed it while running tests on a local Windows 7 VM that doesn't have any of that kind of stuff installed.

@mscdex mscdex force-pushed the test-fix-win32-child-process-flush-stdio branch from cddfef0 to 883f253 Compare May 29, 2016 18:22
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mscdex commented May 29, 2016

@joaocgreis
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Windows CI machines have Git for Windows installed, and use the executables provided by that. There should be a few more tools required to run the tests, I once compiled a list but it should be quite outdated now: https://github.com/nodejs/node/wiki/Installation#building-on-windows (bottom of that section).

It's good to see one of those dependencies go away, LGTM.

@mscdex mscdex force-pushed the test-fix-win32-child-process-flush-stdio branch 2 times, most recently from 94cd580 to b04f1ba Compare June 7, 2016 03:36
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mscdex commented Jun 7, 2016

CI one last time before landing: https://ci.nodejs.org/job/node-test-pull-request/2942/

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addaleax commented Jun 7, 2016

LGTM

Most Windows systems do not have an external `echo` program installed,
so any attempts to spawn `echo` as a child process will fail with
`ENOENT`. This commit forces the use of the built-in `echo` provided
by `cmd.exe`.

PR-URL: nodejs#7049
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: João Reis <reis@janeasystems.com>
Reviewed-By: Anna Henningsen <anna@addaleax.net>
@mscdex mscdex force-pushed the test-fix-win32-child-process-flush-stdio branch from b04f1ba to e18a926 Compare June 7, 2016 04:05
@mscdex mscdex merged commit e18a926 into nodejs:master Jun 7, 2016
@mscdex mscdex deleted the test-fix-win32-child-process-flush-stdio branch June 7, 2016 04:06
evanlucas pushed a commit that referenced this pull request Jun 15, 2016
Most Windows systems do not have an external `echo` program installed,
so any attempts to spawn `echo` as a child process will fail with
`ENOENT`. This commit forces the use of the built-in `echo` provided
by `cmd.exe`.

PR-URL: #7049
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: João Reis <reis@janeasystems.com>
Reviewed-By: Anna Henningsen <anna@addaleax.net>
@evanlucas evanlucas mentioned this pull request Jun 16, 2016
MylesBorins pushed a commit that referenced this pull request Jul 11, 2016
Most Windows systems do not have an external `echo` program installed,
so any attempts to spawn `echo` as a child process will fail with
`ENOENT`. This commit forces the use of the built-in `echo` provided
by `cmd.exe`.

PR-URL: #7049
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: João Reis <reis@janeasystems.com>
Reviewed-By: Anna Henningsen <anna@addaleax.net>
MylesBorins pushed a commit that referenced this pull request Jul 12, 2016
Most Windows systems do not have an external `echo` program installed,
so any attempts to spawn `echo` as a child process will fail with
`ENOENT`. This commit forces the use of the built-in `echo` provided
by `cmd.exe`.

PR-URL: #7049
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: João Reis <reis@janeasystems.com>
Reviewed-By: Anna Henningsen <anna@addaleax.net>
MylesBorins pushed a commit that referenced this pull request Jul 12, 2016
Most Windows systems do not have an external `echo` program installed,
so any attempts to spawn `echo` as a child process will fail with
`ENOENT`. This commit forces the use of the built-in `echo` provided
by `cmd.exe`.

PR-URL: #7049
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: João Reis <reis@janeasystems.com>
Reviewed-By: Anna Henningsen <anna@addaleax.net>
@MylesBorins MylesBorins mentioned this pull request Jul 12, 2016
MylesBorins pushed a commit that referenced this pull request Jul 14, 2016
Most Windows systems do not have an external `echo` program installed,
so any attempts to spawn `echo` as a child process will fail with
`ENOENT`. This commit forces the use of the built-in `echo` provided
by `cmd.exe`.

PR-URL: #7049
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: João Reis <reis@janeasystems.com>
Reviewed-By: Anna Henningsen <anna@addaleax.net>
MylesBorins pushed a commit that referenced this pull request Jul 14, 2016
Most Windows systems do not have an external `echo` program installed,
so any attempts to spawn `echo` as a child process will fail with
`ENOENT`. This commit forces the use of the built-in `echo` provided
by `cmd.exe`.

PR-URL: #7049
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: João Reis <reis@janeasystems.com>
Reviewed-By: Anna Henningsen <anna@addaleax.net>
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sxa commented Dec 29, 2016

@thealphanerd While this landed cleanly on V4 it doesn't work and the test case still fails there. The shell:true option only exists in V6 and later. I'm submitting a separate PR to implement the fix differently in that branch

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6 participants