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test: fix warning in test_environment.cc #36846

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warning log:

../test/cctest/test_environment.cc: In constructor ‘RedirectStdErr::RedirectStdErr(const char*)’:
../test/cctest/test_environment.cc:77:12: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result]
     freopen(filename_, "w", stderr);
     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~

@nodejs-github-bot nodejs-github-bot added the test Issues and PRs related to the tests. label Jan 8, 2021
@RaisinTen RaisinTen force-pushed the test/fix-warning-in-test_environment.cc branch from f5706f3 to f67a8bd Compare January 9, 2021 09:02
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cc @nodejs/testing

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targos commented Jan 9, 2021

The USE macro doesn't work in this context? See

node/src/env.cc

Line 467 in a45a404

USE(script->Run(context()));
for example.

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@targos thanks for mentioning that. I actually tried (void) <the-FILE*> and it still produced the warning. The ! seems to be necessary. I'm not quite sure how I'm supposed to include the header though given that none of the tests use USE. Do I hardcode deps/v8/src/base/macros.h in?

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targos commented Jan 9, 2021

Sorry, it's not a macro for us. The function is defined in src/util.h. You can use it like this: node::USE(...)

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@targos thanks, now the warning is gone. :)

@RaisinTen
test: fix warning in test_environment.cc
3e7ef4b 
warning log:
../test/cctest/test_environment.cc: In constructor ‘RedirectStdErr::RedirectStdErr(const char*)’:
../test/cctest/test_environment.cc:77:12: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result]
     freopen(filename_, "w", stderr);
     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
@RaisinTen RaisinTen force-pushed the test/fix-warning-in-test_environment.cc branch from 9ae438f to 3e7ef4b Compare January 13, 2021 15:01
@RaisinTen RaisinTen added the review wanted PRs that need reviews. label Jan 17, 2021
aduh95
aduh95 approved these changes Jan 18, 2021
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RSLGTM

@aduh95 aduh95 added the author ready PRs that have at least one approval, no pending requests for changes, and a CI started. label Jan 18, 2021
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CI: https://ci.nodejs.org/job/node-test-pull-request/35610/

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jasnell commented Jan 18, 2021

Landed in 341bbd3

@jasnell jasnell closed this Jan 18, 2021
jasnell pushed a commit that referenced this pull request Jan 18, 2021
@RaisinTen @jasnell
test: fix warning in test_environment.cc
341bbd3 
```
warning log:
../test/cctest/test_environment.cc: In constructor   \
‘RedirectStdErr::RedirectStdErr(const char*)’:
../test/cctest/test_environment.cc:77:12: warning:   \
ignoring return value of ‘FILE* freopen(const char*, \
const char*, FILE*)’, declared with attribute
warn_unused_result [-Wunused-result]
     freopen(filename_, "w", stderr);
     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
```

PR-URL: #36846
Reviewed-By: Antoine du Hamel <duhamelantoine1995@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
@RaisinTen RaisinTen deleted the test/fix-warning-in-test_environment.cc branch January 19, 2021 13:49
@ruyadorno ruyadorno removed the review wanted PRs that need reviews. label Jan 21, 2021
ruyadorno pushed a commit that referenced this pull request Jan 22, 2021
@RaisinTen @ruyadorno
test: fix warning in test_environment.cc
3d20415 
```
warning log:
../test/cctest/test_environment.cc: In constructor   \
‘RedirectStdErr::RedirectStdErr(const char*)’:
../test/cctest/test_environment.cc:77:12: warning:   \
ignoring return value of ‘FILE* freopen(const char*, \
const char*, FILE*)’, declared with attribute
warn_unused_result [-Wunused-result]
     freopen(filename_, "w", stderr);
     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
```

PR-URL: #36846
Reviewed-By: Antoine du Hamel <duhamelantoine1995@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
@ruyadorno ruyadorno mentioned this pull request Jan 22, 2021
Merged
ruyadorno pushed a commit that referenced this pull request Jan 25, 2021
@RaisinTen @ruyadorno
test: fix warning in test_environment.cc
8d49ce9 
```
warning log:
../test/cctest/test_environment.cc: In constructor   \
‘RedirectStdErr::RedirectStdErr(const char*)’:
../test/cctest/test_environment.cc:77:12: warning:   \
ignoring return value of ‘FILE* freopen(const char*, \
const char*, FILE*)’, declared with attribute
warn_unused_result [-Wunused-result]
     freopen(filename_, "w", stderr);
     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
```

PR-URL: #36846
Reviewed-By: Antoine du Hamel <duhamelantoine1995@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
targos pushed a commit that referenced this pull request May 1, 2021
@RaisinTen @targos
test: fix warning in test_environment.cc
90122d8 
```
warning log:
../test/cctest/test_environment.cc: In constructor   \
‘RedirectStdErr::RedirectStdErr(const char*)’:
../test/cctest/test_environment.cc:77:12: warning:   \
ignoring return value of ‘FILE* freopen(const char*, \
const char*, FILE*)’, declared with attribute
warn_unused_result [-Wunused-result]
     freopen(filename_, "w", stderr);
     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
```

PR-URL: #36846
Reviewed-By: Antoine du Hamel <duhamelantoine1995@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
@danielleadams danielleadams mentioned this pull request May 3, 2021
Merged
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@jasnell jasnell jasnell approved these changes

@aduh95 aduh95 aduh95 approved these changes

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