Add a suggestion for non-English locale of Linux in the test doc

Erik Joelsson erik.joelsson at
Tue Apr 16 13:20:57 UTC 2019

Hello Jing Tian,

The last sentence doesn't really fit with the rest. I would just remove 
it and then list examples for both situations like this:

     $ LANG=en_US make test TEST=...
     $ make test JTREG="VM_OPTIONS=-Duser.language=en" 

While exporting LANG is certainly a valid solution, I think it's better 
if the examples are actual make command lines. I would expect most users 
to be familiar enough with the shell to know that variables can also be 


On 2019-04-16 01:10, Jing Tian wrote:
> Thank you for your suggestions. I have reworked the documentation and 
> I think this is a prudent approach so far. Regarding the other seven 
> test cases, I will continue to find out why they can't pass the test.
> JBS:
> Webrev:
> Jing Tian
> 在 2019/4/15 23:24, naoto.sato at 写道:
>> As for the wording, I'd suggest "Non-US Locale" instead of 
>> "Non-English." Some tests may depend on US customary behavior, such 
>> as date format, decimal separator, etc.
>> Naoto
>> On 4/15/19 6:59 AM, Erik Joelsson wrote:
>>> Hello,
>>> Documenting this is certainly the least we can do. If our tests 
>>> depend on the locale being set to en_US, then I think the best 
>>> action would be to provide such a configuration directly in 
>>> RunTests.gmk. Exporting LANG should work for all Unix OSes, but most 
>>> likely not on Windows. The extra VM_OPTIONS would fix most of them 
>>> it seems. Would it be worth investigating the remaining 7 and get 
>>> them fixed?
>>> In the meantime, documenting seems prudent. I would suggest 
>>> something like this:
>>> ### Non-English Locale
>>> If your locale is non-English, some tests are likely to fail. To 
>>> work around this you can set the locale to English. On Unix 
>>> platforms simply setting `LANG=en_US` in the environment before 
>>> running tests should work. On Windows, setting 
>>> `JTREG="VM_OPTIONS=-Duser.language=en"` helps for 
>>> most, but not all test cases.
>>> /Erik
>>> On 2019-04-14 20:28, Jing Tian wrote:
>>>> Hi,
>>>> We have discussed the issue of the test cases fail because of 
>>>> locale before[1].
>>>> Thanks for the suggestions given by Naoto and David. I think we can 
>>>> put this advice in the test doc, which may be better for people to 
>>>> test. This advice can avoid the problem that caused by locale and 
>>>> we can pay more attention to the functional points that the test 
>>>> itself focuses on.
>>>> Set JTREG="VM_OPTIONS=-Duser.language=en" , it 
>>>> does pass most test cases, but there are still very few test 
>>>> cases(7 in total) can't pass the test when they are in a 
>>>> non-English locale.
>>>> I think if 'make test' in a non-English locale, we can set the 
>>>> locale to English first. Use 'export LANG="en_US"'. But this method 
>>>> is just for Linux. I test "tier1 tier2 tier3" after setting 
>>>> LANG="en_US". The problems caused by the local settings have not 
>>>> appeared anymore.
>>>> JBS:
>>>> Webrev:
>>>> The testing.html is updated automatically using "make 
>>>> update-build-docs" with pandoc version 2.7.2.
>>>> [1] 
>>>> <> 
>>>> Cheers,
>>>> Jing Tian

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