[GRASS-dev] v.what: test_vwhat_layers is failing

[Markus Metz]

On Mon, Nov 3, 2014 at 4:53 PM, Anna Petrášová <kratochanna at gmail.com> wrote:
>
>
> On Mon, Nov 3, 2014 at 9:18 AM, Vaclav Petras <wenzeslaus at gmail.com> wrote:
>>
>> It seems that v.what's test_vwhat_layers test file is randomly failing
>> time to time with "ERROR: Unable to start driver <(null)>".
>
>
> It looks like db connection is not set at all. I added calling db.connect -c
> to the test. However, I am not sure, is this how it is supposed to work?
> Almost no db module initializes db when not set.

The GRASS start-up script initializes db with db.connect -c when not set:

https://trac.osgeo.org/grass/browser/grass/trunk/lib/init/grass.py#L1435

therefore this problem does not occur if you start GRASS with grass.py

Regarding v.what's test_vwhat_layers test, the error is correct
because db.tables lists tables in the given database using the
specified driver. It is an error if either database or driver are not
specified for db.tables.

Markus M

> I ran into the same problem
> when a shapefile is imported during creating new location.
>
> Anna
>
>>
>> ======================================================================
>> ERROR: setUpClass (__main__.TestMultiLayerMap)
>> ----------------------------------------------------------------------
>> Traceback (most recent call last):
>>   File "vector/v.what/testsuite/test_vwhat_layers.py", line 121, in
>> setUpClass
>>     cls.runModule('db.in.ogr', dsn='./data/table1.csv', output='t1')
>>   File "etc/python/grass/gunittest/case.py", line 953, in runModule
>>     errors=errors)
>> CalledModuleError: Module run 1 db.in.ogr ended with error
>> Process ended with non-zero return code db.in_ogr(dsn='./data/table1.csv',
>> output='t1'). See the following errors:
>> ERROR: Unable to start driver <(null)>
>> Traceback (most recent call last):
>>   File "scripts/db.in.ogr", line 127, in <module>
>>     main()
>>   File "scripts/db.in.ogr", line 76, in main
>>     s = grass.read_command('db.tables', flags = 'p')
>>   File "etc/python/grass/script/core.py", line 420, in read_command
>>     returncode=returncode)
>> grass.exceptions.CalledModuleError: Module run None db.tables -p ended
>> with error
>> Process ended with non-zero return code 1. See errors in the (error)
>> output.
>>
>>
>> http://fatra.cnr.ncsu.edu/grassgistests/reports_for_date-2014-11-02-08-00/report_for_nc_spm_08_grass7_nc/vector/v.what/index.html
>>
>> http://fatra.cnr.ncsu.edu/grassgistests/reports_for_date-2014-11-03-08-00/report_for_nc_spm_08_grass7_nc/vector/v.what/test_vwhat_layers/index.html
>>
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>
>
>
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