rspec, trusted facts, and node facts

[jcbollinger]

I am working on rspec tests for a module for Puppet 5 that refers to nodes' $::trusted_facts hash, and, separately, relies on nodes' $::networking fact.  In particular it uses the values of $::networking['fqdn'] and $::networking['hostname'].  I would like to test scenarios where the attributes of $::networking are unrelated to the node name, or even are absent altogether, but I can't figure out how to do it.

Through a combination of documentation and trial and error, I think I have determined that in order for rspec-puppet to provide the $::trusted_facts hash to the catalog builder, I need to configure its trusted_node_data parameter to true, and to define a node name in my tests via let(:node) { 'node-name' }.

After doing so, however, I found that the catalog builder was receiving different values for the hostname and fqdn than those I specify via a let(:facts) call.  After much head scratching, hypothesizing, and net searching, I think I finally established that by default, rspec-puppet uses the node name to set values for these properties, overriding anything to the contrary in the facts I provide.

But wait!  Rspec-puppet also has a configuration parameter, derive_node_facts_from_nodename, that seems custom-made for disabling the troublesome behavior.  That's great, except that setting that parameter to false seems to disable the $::trusted_facts hash as well.

Is there some combination of rspec configuration settings and test code that can give me the test scenarios I want?  That is, $::trusted_facts presented to the catalog builder and containing at least the certname key, with $::networking['fqdn'] and $::networking['hostname'] taking independent values (or being undefined), as I specify separately?


John

[jcbollinger]

On Thursday, April 5, 2018 at 5:07:35 PM UTC-5, jcbollinger wrote:

Of course, I realize at this point that I am too dumb to spell "::trusted" correctly.  But that's ancillary -- I still want to test scenarios where the node's fqdn and hostname are independent of its certname, and rspec-puppet seems unwilling to let me set the two former facts in any way other than by allowing them to be derived automatically from the node name / certname.

John

[Nick Miller]

There was some discussion on a GitHub issue relating to this: https://github.com/rodjek/rspec-puppet/pull/643

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[jcbollinger]

On Friday, April 6, 2018 at 9:19:04 AM UTC-5, Nick Miller wrote:

There was some discussion on a GitHub issue relating to this: https://github.com/rodjek/rspec-puppet/pull/643

Thanks, NIck.  It looks like I've finally got this sorted.  I went back to twiddling the trusted_node_data and derive_node_facts_from_nodename rspec-puppet parameters, tweaked the tests, and made some spelling corrections in the class under test.  My tests are now passing, and I'm satisfied that I understand why.

Cheers,

John

[nand...@gmail.com]

Hi all ,

I have started my rspec code to test modules for unit testing .as there is no good document to start with ,  Can you share some of your rspec code testing the modules using rspec and steps to run spec against servers ,

Regards,

Nandha

[David Schmitt]

Did you see https://rspec-puppet.com/ ?

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[nandha kumar]

Hi David ,

Yes I did see the site , but it doesn't help me much with proper procedure. 

I am looking out to run test against list of nodegroups and how can I achieve that ?

Regards,

Nandha 

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[nand...@gmail.com]

Hi all,

I have somehow managed to write basic rspec test . But i need to run the rspec test on multiple servers .

Please some one provide guidance on running rspec against different node groups or envs ?

Regards,

Nandha