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niklasi wants to merge 5 commits into from
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test: Add tests for add/remove header after sent. #8682

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361542b
test: Add tests for add/remove header after sent.
niklasi Sep 20, 2016
8787d21
Use port 0 instead of common.PORT.
niklasi Sep 21, 2016
b8ed5ee
Check error messages.
niklasi Sep 21, 2016
a72b6fc
Fix missing semicolon.
niklasi Sep 21, 2016
60a1081
Escape '.' when checking error message.
niklasi Sep 21, 2016
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Check error messages.
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@niklasi
niklasi committed Sep 21, 2016
commit b8ed5ee67281434959399841a42eb79d63dc71c2
2 changes: 1 addition & 1 deletion test/parallel/test-http-response-add-header-after-sent.js
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Expand Up @@ -10,7 +10,7 @@ const server = http.createServer((req, res) => {
res.write('abc')
assert.throws(() => {
res.setHeader('header2', 2);
}, Error, 'setHeader after write should throw');
}, /Can't set headers after they are sent./)
res.end()
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@santigimeno santigimeno Sep 21, 2016

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I think it can be useful checking the error message too. 'Can\'t set headers after they are sent.'

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@niklasi niklasi Sep 21, 2016 •
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I went back and forth with this one. I can see why it could be useful to check the error message, but I can also see why it could be problematic. The way I see it is that the error message is an "implementation detail" and not part of the api and therefore you make the test more fragile if you test the error message. I don't think the test should fail if you change the error message, but on the other hand how do you know if it is the "right" Error? I'm not sure what the best way to do this is, in this context, and I'm more than happy to discuss this.
Btw, this is my first PR for the node-project and I really appreciate your feedback.

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@lpinca lpinca Sep 21, 2016

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If I'm not wrong changing the error message is considered a breaking change so I'm +1 for also checking the error message.

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@niklasi niklasi Sep 21, 2016

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Well, if that's considered a breaking change then I'm also for checking the error message :-)
Thank you for the clarification. I will fix it.

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@niklasi niklasi Sep 21, 2016

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I have fixed the error message check now.

});

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2 changes: 1 addition & 1 deletion test/parallel/test-http-response-remove-header-after-sent.js
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Original file line number Diff line number Diff line change
Expand Up @@ -10,7 +10,7 @@ const server = http.createServer((req, res) => {
res.write('abc')
assert.throws(() => {
res.removeHeader('header2', 2);
}, Error, 'removeHeader after write should throw');
}, /Can't remove headers after they are sent/)
res.end()
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@santigimeno santigimeno Sep 21, 2016

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Check error message here too.

});

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