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lib/net: Convert to using internal/errors #14782
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doc/api/errors.md
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@@ -1004,6 +1004,22 @@ Used when a callback is called more then once. | |||
can either be fulfilled or rejected but not both at the same time. The latter | |||
would be possible by calling a callback more then once. | |||
|
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<a id="ERR_NET_INVALID_LISTEN_ARG"></a> | |||
### ERR_NET_INVALID_LISTEN_ARG |
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Any reason not to use the existing ERR_INVALID_ARG_TYPE
instead of creating this new error?
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There is an ongoing debate on whether error codes should be very specific (like this case), or more general (like what @Trott is suggesting)
For now the trend is towards a clear separation between bad arguments or options, and run time errors. But minimal separation between different argument errors.
@pmatzavin IMHO, the description you've given here should be in the net.Server.listen
API documentation, and ERR_INVALID_ARG_TYPE
is good enough.
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@Trott @refack I am having trouble using the 'ERR_INVALID_ARG_TYPE' for the
Server.prototype.listen()
in the lib/net.js
.
I am describing the problem below :
The Server.prototype.listen()
implementation
has some early return statements for the following cases:
options = options._handle || options.handle || options;
options instanceof TCP
typeof options.fd === 'number' && options.fd >= 0
(args.length === 0 || typeof args[0] === 'function' || (typeof options.port === 'undefined' && 'port' in options)) || typeof options.port === 'number' || typeof options.port === 'string'
options.path && isPipeName(options.path)
At the end, if none of these early return statements runs, then the error is thrown.
So I am having trouble using the
E('ERR_INVALID_ARG_TYPE', invalidArgType)
error.
As I cannot compute a suitable error message using the
invalidArgType(name, expected, actual)
(file: lib/internal/errors.js
) callback,
for the case that I described above.
I have not yet found a similar case in the source code.
That's why I used the new error ERR_NET_INVALID_LISTEN_ARG
in the first place.
Do you have any suggestions on how should I handle this case or on how should I use the ERR_INVALID_ARG_TYPE
error for this case?
Should I refactor the invalidArgType
method in the lib/internal/errors.js
to return a more generic error message (like: invalid type
)
if the expected
argument is not specified?
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If I'm understanding correctly, the error isn't (necessarily?) an invalid argument type, but an invalid argument.
If we can make ERR_INVALID_OPT_VALUE
work instead, that would be great. Will that result in a similar difficulty? If so, then I'm OK with a new error. If we've been trying for more general errors, E_INVALID_OPTION_OBJECT or something like that might be preferable so it can be re-used elsewhere. But there's a valid argument for specific codes too, so either way is fine by me.
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@Trott I used the ERR_INVALID_OPT_VALUE
error instead of creating a new error.
I amended the change and pushed -f to the current pull request.
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Hi @pmatzavin! Welcome and thanks for the PR! I left a question/suggestion for a change.
Hi @Trott! Thanks for the help and the suggestion. I am traveling right now without my laptop. I will update my PR by this Saturday. |
@nodejs/ctc This is semver-major, needs some CTC reviews. |
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updated |
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LGTM
(just some nits)
const prefix = '"port" option should be a number or string: '; | ||
const cleaned = opt.replace(/[\\^$.*+?()[\]{}|=!<>:-]/g, '\\$&'); | ||
return new RegExp(`^TypeError: ${prefix}${cleaned}$`); | ||
function portTypeError() { |
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You can replace this with:
const portTypeError = common.expectsError({
code: 'ERR_INVALID_ARG_TYPE',
type: TypeError
}, 5);
and the same in L46
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@refack I have read the CONTRIBUTING.md
but I am not sure which of the following should I use to make the requested changes:
- amend the commit and push --force-with-lease
- git commit --fixup
- simply add a new commit
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IMHO simply add a commit, since it makes re-reviews easier.
A common practice is to prefix the new commit's message with [fixup] ...
so it's clear that it should be squashed when the PR is landed.
test/parallel/test-net-localerror.js
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assert.throws(() => { | ||
net.connect(opts); | ||
}, msg); | ||
function connect(opts, code, type) { |
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This can now be:
const connect = (opts, code, type) => common.expectsError(
() => net.connect(opts),
{ code, type }
);
const assert = require('assert'); | ||
const common = require('../common'); |
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Actually require('../common');
should be first. It does some wiring, and maybe we'll want it to monkeypatch assert
in the future.
Hello @pmatzavin and welcome. Thank you very much for the contribution 🥇 P.S. If you have any question you can also feel free to contact me directly (@ mention, email, IM, or IRC) |
lib/net.js
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throw new TypeError('options must be an object'); | ||
throw new errors.TypeError('ERR_INVALID_ARG_TYPE', | ||
'options', | ||
['object'], |
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s/[object']
/`Object'
When there is a single value, it doesn't need to be in an array
SGTM, but I defer to @jasnell on the integration with the full new error messaging approach, when he gives a +1 then consider mine in here too |
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Small non blocking nit
lib/net.js
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@@ -1485,7 +1497,9 @@ Server.prototype.listen = function() { | |||
return this; | |||
} | |||
|
|||
throw new Error('Invalid listen argument: ' + util.inspect(options)); | |||
throw new errors.TypeError('ERR_INVALID_OPT_VALUE', | |||
'listen options', |
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IMHO this should be just options
so it will be rendered as:
The value "{ gaga: 4 }" is invalid for option "options"
which seems a tiny bit better then
https://github.com/nodejs/node/blob/77b02d2d8345c407dc0e0121420d823b2ce6fb18/test/parallel/test-net-server-listen-options.js#L63
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💯
@jasnell PTAL |
lib/net.js
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if (type === 'PIPE') return new Pipe(); | ||
if (type === 'TCP') return new TCP(); | ||
throw new TypeError('Unsupported fd type: ' + type); | ||
throw new errors.Error('ERR_INVALID_HANDLE_TYPE'); |
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I'd prefer the message to include the handle type.
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@pmatzavin look at
Line 200 in cbd3708
E('ERR_INVALID_FD', '"fd" must be a positive integer: %s'); |
You can add just after it:
E('ERR_INVALID_FD_TYPE', 'Unsupported fd type: %s');
test/parallel/test-net-localerror.js
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const connect = (opts, code, type) => common.expectsError( | ||
() => net.connect(opts), | ||
{ code, type } | ||
); |
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this doesn't quite match our typical code format .... it should be something like
const connect = (opts, code, type) => {
common.expectsError(...);
};
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That's my mistake.
@pmatzavin for arrow functions that span multiple lines, in node's code it's prefered to use the {}
syntax for extra clarity of the scope (even if it is just one expression like here).
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A few nits but generally LGTM
@refack There was no test for the fd error thrown in the |
lib/net.js
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} | ||
if (!isLegalPort(port)) { | ||
throw new RangeError('"port" option should be >= 0 and < 65536: ' + port); | ||
throw new errors.RangeError('ERR_SOCKET_BAD_PORT'); |
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Should the port
be passed as a parameter to the throw
here, and also on line 1475?
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I think that would be nice 👍
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The ERR_SOCKET_BAD_PORT
definition in lib/internal/errors.js
does not handle a port argument. Should I refactor it to something like this?
E('ERR_SOCKET_BAD_PORT', (port) => {
const portMsg = port ? `: ${port}` : '';
return `Port${portMsg} should be > 0 and < 65536`;
});
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I commited the change to pass the port value in the 'ERR_SOCKET_BAD_PORT'
call in lib/net.js
. This will not be included in the err msg until we modify the E('ERR_SOCKET_BAD_PORT', 'Port should be > 0 and < 65536');
in lib/internal/errors.js
(see my above comment/question)
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Thanks a lot for your contribution. It looks pretty good overall. A few Error classes seemed to be mistaken though.
Besides that it would be nice to use common.expectsError(throwingFunction, options)
instead of assert.throws(throwingFunction, common.expectsError(options))
but this should not block the PR.
lib/net.js
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@@ -1018,21 +1020,25 @@ function lookupAndConnect(self, options) { | |||
var localPort = options.localPort; | |||
|
|||
if (localAddress && !cares.isIP(localAddress)) { | |||
throw new TypeError('"localAddress" option must be a valid IP: ' + | |||
localAddress); | |||
throw new errors.Error('ERR_INVALID_IP_ADDRESS', localAddress); |
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Why was this changed to a Error
? It was a TypeError
before?
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I actually think not using TypeError
is appropriate here. I've never felt that TypeError
was a good fit.
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my bad. I corrected this, now the error types in lib/net.js have the correct value.
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@jasnell i have already committed (some minutes ago) a change that preserve the error types as they were in lib/net.js
. So this is now a TypeError
as before. Should I re-change it?
const assertPort = () => { | ||
return common.expectsError({ | ||
code: 'ERR_SOCKET_BAD_PORT', | ||
type: Error |
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This was a RangeError
before?
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Good point, this one should be a RangeError
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my bad. I corrected this, now the error types in lib/net.js have the correct value.
test/parallel/test-net-localerror.js
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localPort: 'foobar', | ||
}, /^TypeError: "localPort" option should be a number: foobar$/); | ||
localAddress: 'foobar', | ||
}, 'ERR_INVALID_IP_ADDRESS', Error); |
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This was a TypeError
before?
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my bad. I corrected this, now the error types in lib/net.js have the correct value.
} | ||
if (!isLegalPort(port)) { | ||
throw new RangeError('"port" option should be >= 0 and < 65536: ' + port); | ||
throw new errors.RangeError('ERR_SOCKET_BAD_PORT', port); |
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The error type must also be able to handle the provided port.
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I have made a change to include the port in the err msg if the port arg is passed to the error constructor.
lib/internal/errors.js
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portMsg = `:${port}`; | ||
} | ||
return `Port${portMsg} should be > 0 and < 65536`; | ||
}); |
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This is more complicated then it has to be. I would rather have
E('ERR_SOCKET_BAD_PORT', 'Port should be > 0 and < 65536. Received %s.');
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fixed (commit: b336aa1)
Covert lib/net.js over to using lib/internal/errors.js Ref: nodejs#11273 I have not addressed the cases that use errnoException(), for reasons described in nodejsGH-12926 - Replace thrown errors in lib/net.js with errors from lib/internal/errors. The ERR_INVALID_OPT_VALUE error have been used in the Server.prototype.listen() method after a discussion in Ref: nodejs#14782 - Update tests according to the above modifications
- refactor the portTypeError and portRangeError assertions, by passing the expected call count to common.expectsError in test-net-connect-options-port.js (Each syncFailToConnect() call will call 4 or 2 times the doConnect() method, wich returns an array of size 6, so the call counts are 96 and 168 for portTypeError and portRangeError respectively) - refactor the connect() method in test-net-localerror.js, by removing the reduntant assert and use the common.expectsError() assertion - move require('../common') to the top in test-net-server-options.js
- refactor the valid types argument of ERR_INVALID_ARG_TYPE errors, to be a string instead of an array when the number of valid types equals 1, in lib/net.js
replace "listen options" with "options"
- Create a new error 'ERR_INVALID_FD_TYPE' in lib/internal/errors.js, following the corresponding discussion at Ref: nodejs#14782. This error should be thrown when a file descriptor type is not valid. - add test for the new err in test-internal-errors.js - update the error doc in errors.md - use the new err in createHandle() in lib/net.js - Add brackets {} in arrow function in test-net-localerror.js to match the typical source code's format.
- add missing test for the 'ERR_INVALID_FD_TYPE' err that is thrown from the net.Socket constructor - correct the err type from Error to TypeError
- correct 'ERR_INVALID_IP_ADDRESS' type to TypeError err in net.js - correct 'ERR_SOCKET_BAD_PORT' type to RangeError in net.js - correct 'ERR_INVALID_OPT_VALUE' type to Error in net.js - pass the port value to the the 'ERR_SOCKET_BAD_PORT' err in net.js
- Modify the ERR_SOCKET_BAD_PORT definition in internal/errors.js to include the specified port in the err msg, if the port arg is passed to the err constructor. - Add tests for ERR_SOCKET_BAD_PORT msg in test-internal-errors.js
- simplify the ERR_SOCKET_BAD_PORT error definition in errors.js by replacing the cb arg with the string: 'Port should be > 0 and < 65536. Received %s.' - update the ERR_SOCKET_BAD_PORT test in test-internal-errors.js - update the ERR_SOCKET_BAD_PORT constructor call in lib/dgram.js and lib/dns to include the actual port as the second arg - update the already existing ERR_SOCKET_BAD_PORT message assertion in test-dns.js, to include the actual port.
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I went ahead and rebased the branch. |
@@ -1065,7 +1071,10 @@ function lookupAndConnect(self, options) { | |||
} | |||
|
|||
if (options.lookup && typeof options.lookup !== 'function') | |||
throw new TypeError('"lookup" option should be a function'); | |||
throw new errors.TypeError('ERR_INVALID_ARG_TYPE', |
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This should likely be ERR_INVALID_OPTION_VALUE
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There are thrown errors for all the following 4 values in lib/net
lookupAndConnect
function :
function lookupAndConnect(self, options) {
// ...
options.port
options.localAddress
options.localPort
options.lookup
// ...
So I guess that for consistency, all the errors thrown for invalid values of the above vars should have a code of ERR_INVALID_OPTION_VALUE
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I checked how we use mainly use this right now in the code base and it seems like ERR_INVALID_ARG_TYPE
is the right type here. We might improve those types in general later on further but I think this should not block the PR from being merged.
This is failing in CI: https://ci.nodejs.org/job/node-test-commit-linuxone/8827/nodes=rhel72-s390x/ |
Sry for being unresponsive. I was unavailable due to some hlth problem. I will look into the issues. |
@pmatzavin ... no worries. Hope you're feeling better. |
I am getting different results when running the tests locally. The CI failing test(parallel/test-net-socket-fd-error) passes in my local env. I haven't found yet, why this can be inconsistent. |
removed the test/parallel/test-net-socket-fd-error.js this test was added in the current PR but is not consistent. As the used fd mock value does not consistenly resolve to a fd type not equal to 'PIPE' and not equal to 'TCP'
I removed the failing test / file: This test was added by me in the current PR
by calling
but i could not find a fd value/number that will fit for this test. |
@pmatzavin I think only one review has to be addressed and it should be good to go. I will start a CI as soon as that is done. |
Running the tests again https://ci.nodejs.org/job/node-test-pull-request/10374/ |
CI before landing : https://ci.nodejs.org/job/node-test-pull-request/10717/ |
Landed in 7f55349 Note that there is still #15589 that we need to fix after this (See #14782 (review) regarding using |
Covert lib/net.js over to using lib/internal/errors.js - Replace thrown errors in lib/net.js with errors from lib/internal/errors. The ERR_INVALID_OPT_VALUE error have been used in the Server.prototype.listen() method - Update tests according to the above modifications PR-URL: #14782 Refs: #11273 Reviewed-By: Refael Ackermann <[email protected]> Reviewed-By: James M Snell <[email protected]> Reviewed-By: Ruben Bridgewater <[email protected]> Reviewed-By: Michael Dawson <[email protected]> Reviewed-By: Joyee Cheung <[email protected]>
Covert lib/net.js over to using lib/internal/errors.js - Replace thrown errors in lib/net.js with errors from lib/internal/errors. The ERR_INVALID_OPT_VALUE error have been used in the Server.prototype.listen() method - Update tests according to the above modifications PR-URL: nodejs/node#14782 Refs: nodejs/node#11273 Reviewed-By: Refael Ackermann <[email protected]> Reviewed-By: James M Snell <[email protected]> Reviewed-By: Ruben Bridgewater <[email protected]> Reviewed-By: Michael Dawson <[email protected]> Reviewed-By: Joyee Cheung <[email protected]>
Covert lib/net.js over to using lib/internal/errors.js
Ref: #11273
I have not addressed the cases that use errnoException(),
for reasons described in GH-12926
with errors from lib/internal/errors
Checklist
make -j4 test
(UNIX), orvcbuild test
(Windows) passesAffected core subsystem(s)
lib/net, doc