Re: Review Request 65666: Added a unit test for SLRP operation state metrics.

[Chun-Hung Hsiao <ch...@apache.org>]

> On March 26, 2018, 2:27 p.m., Jan Schlicht wrote:
> > src/tests/storage_local_resource_provider_tests.cpp
> > Lines 3127 (patched)
> > <https://reviews.apache.org/r/65666/diff/3/?file=1982877#file1982877line3128>
> >
> >     We should wait for an `UpdateSlaveMessage` here. Otherwise we can't be sure that an offer will contain resource provider resources.
> >     I see that you're using the `OffersHaveAnyResources` matcher to work around this. The test could be much stricter when using `UpdateSlaveMessage` instead as we wouldn't expect offers without RP resources after receiving this message, probably even run the test with a stopped clock.

Yeah that's true. However if we wait for the `UpdateSlaveMessage` or even stopping the clock, the we'll need to have logic like the following: https://github.com/apache/mesos/blob/master/src/tests/storage_local_resource_provider_tests.cpp#L296-L327
which reveals implementation details about SLRP sending multiple `UpdateSlaveMessage`s and their orders. Since these details are not very relevent to the test, I'd prefer using the current style which mimics how a framework would use SLRP, unless it is necessary to control the clock.


- Chun-Hung


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On March 20, 2018, 3:27 a.m., Chun-Hung Hsiao wrote:
> 
> -----------------------------------------------------------
> This is an automatically generated e-mail. To reply, visit:
> https://reviews.apache.org/r/65666/
> -----------------------------------------------------------
> 
> (Updated March 20, 2018, 3:27 a.m.)
> 
> 
> Review request for mesos, Benjamin Bannier, Greg Mann, Jie Yu, and Jan Schlicht.
> 
> 
> Bugs: MESOS-8383
>     https://issues.apache.org/jira/browse/MESOS-8383
> 
> 
> Repository: mesos
> 
> 
> Description
> -------
> 
> This patch adds the `ROOT_OperationStateMetrics` test that issues a
> `CREATE_VOLUME` followed by two `DESTROY_VOLUME`s. The first one will
> fail due to an out-of-band deletion of the actual volume, and the second
> one will fail due to modifying the resource version.
> 
> 
> Diffs
> -----
> 
>   src/tests/storage_local_resource_provider_tests.cpp 264d42b57fe1a8ea04c1de0a10112878c7b45d39 
> 
> 
> Diff: https://reviews.apache.org/r/65666/diff/3/
> 
> 
> Testing
> -------
> 
> sudo make check
> 
> 
> Thanks,
> 
> Chun-Hung Hsiao
> 
>