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process: fix calculation in process.uptime() #26206

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@joyeecheung joyeecheung commented Feb 19, 2019

process: fix calculation in process.uptime()

In #26016 the result returned
by process.uptime() was mistakenly set to be based in the wrong
unit. This patch fixes the calculation and makes sure the returned
value is in seconds.

Refs: #26016
Fixes: #26205

process: move test-process-uptime to parallel

In addition, do not make too many assumptions about the startup
time and timer latency in test-process-uptime. Instead only test
that the value is likely in the correct unit (seconds) and it should
be increasing in subsequent calls.

Checklist
  • make -j4 test (UNIX), or vcbuild test (Windows) passes
  • tests and/or benchmarks are included
  • commit message follows commit guidelines

@nodejs-github-bot nodejs-github-bot added the c++ Issues and PRs that require attention from people who are familiar with C++. label Feb 19, 2019
@joyeecheung joyeecheung changed the title Fix uptime process: fix calculation in process.uptime() Feb 19, 2019
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process: move test-process-uptime to pummel

^ should this read to parallel?

assert.ok(uptime <= original + 3);
}, 2000);
assert.ok(original < uptime);
}, common.platformTimeout(100));
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We don't need to use common.platformTimeout() at all if all we're checking is original < uptime. For that matter, this can probably use a value more like 5 than 100?

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LGTM. (OK by me if my one comment/nit is ignored.)

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@addaleax

^ should this read to parallel?

Yes. (This is what happens when I stay up at 2am 🤦‍♀️ )

Updated the test description and the timeout.
CI: https://ci.nodejs.org/job/node-test-pull-request/20886/

@Trott Trott added the author ready PRs that have at least one approval, no pending requests for changes, and a CI started. label Feb 19, 2019
In nodejs#26016 the result returned
by process.uptime() was mistakenly set to be based in the wrong
unit. This patch fixes the calculation and makes sure the returned
value is in seconds.

Refs: nodejs#26016
In addition, do not make too many assumptions about the startup
time and timer latency in test-process-uptime. Instead only test
that the value is likely in the correct unit (seconds) and it should
be increasing in subsequent calls.
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Trott commented Feb 19, 2019

Tiny lint error: common assigned but never used in the test.

@@ -20,18 +20,18 @@
// USE OR OTHER DEALINGS IN THE SOFTWARE.

'use strict';
require('../common');
const common = require('../common');
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Suggested change
const common = require('../common');
require('../common');

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Trott commented Feb 19, 2019

I'd like to fast-track this (to fix the failing test), but it's 3AM in China, so I'm going to push the tiny lint fix and re-run CI.

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Trott commented Feb 19, 2019

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Trott commented Feb 19, 2019

Please 👍 here if you support fast-tracking. @addaleax @richardlau

@Trott Trott added the fast-track PRs that do not need to wait for 48 hours to land. label Feb 19, 2019
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Trott commented Feb 19, 2019

Landed in 129516d...5c9b37b. Thanks, @joyeecheung! 🎉

@Trott Trott closed this Feb 19, 2019
Trott pushed a commit to Trott/io.js that referenced this pull request Feb 19, 2019
In nodejs#26016 the result returned
by process.uptime() was mistakenly set to be based in the wrong
unit. This patch fixes the calculation and makes sure the returned
value is in seconds.

Refs: nodejs#26016

PR-URL: nodejs#26206
Fixes: nodejs#26205
Reviewed-By: Anna Henningsen <[email protected]>
Reviewed-By: Rich Trott <[email protected]>
Reviewed-By: Richard Lau <[email protected]>
Trott pushed a commit to Trott/io.js that referenced this pull request Feb 19, 2019
In addition, do not make too many assumptions about the startup
time and timer latency in test-process-uptime. Instead only test
that the value is likely in the correct unit (seconds) and it should
be increasing in subsequent calls.

PR-URL: nodejs#26206
Fixes: nodejs#26205
Refs: nodejs#26016
Reviewed-By: Anna Henningsen <[email protected]>
Reviewed-By: Rich Trott <[email protected]>
Reviewed-By: Richard Lau <[email protected]>
addaleax pushed a commit that referenced this pull request Feb 21, 2019
In #26016 the result returned
by process.uptime() was mistakenly set to be based in the wrong
unit. This patch fixes the calculation and makes sure the returned
value is in seconds.

Refs: #26016

PR-URL: #26206
Fixes: #26205
Reviewed-By: Anna Henningsen <[email protected]>
Reviewed-By: Rich Trott <[email protected]>
Reviewed-By: Richard Lau <[email protected]>
addaleax pushed a commit that referenced this pull request Feb 21, 2019
In addition, do not make too many assumptions about the startup
time and timer latency in test-process-uptime. Instead only test
that the value is likely in the correct unit (seconds) and it should
be increasing in subsequent calls.

PR-URL: #26206
Fixes: #26205
Refs: #26016
Reviewed-By: Anna Henningsen <[email protected]>
Reviewed-By: Rich Trott <[email protected]>
Reviewed-By: Richard Lau <[email protected]>
@BridgeAR BridgeAR mentioned this pull request Feb 26, 2019
rvagg pushed a commit that referenced this pull request Feb 28, 2019
In #26016 the result returned
by process.uptime() was mistakenly set to be based in the wrong
unit. This patch fixes the calculation and makes sure the returned
value is in seconds.

Refs: #26016

PR-URL: #26206
Fixes: #26205
Reviewed-By: Anna Henningsen <[email protected]>
Reviewed-By: Rich Trott <[email protected]>
Reviewed-By: Richard Lau <[email protected]>
rvagg pushed a commit that referenced this pull request Feb 28, 2019
In addition, do not make too many assumptions about the startup
time and timer latency in test-process-uptime. Instead only test
that the value is likely in the correct unit (seconds) and it should
be increasing in subsequent calls.

PR-URL: #26206
Fixes: #26205
Refs: #26016
Reviewed-By: Anna Henningsen <[email protected]>
Reviewed-By: Rich Trott <[email protected]>
Reviewed-By: Richard Lau <[email protected]>
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Recently-introduced breaking change (unintentional?) in process.uptime()
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