pact-provider-proxy and single pact verification

[André Allavena]

Hello

I'm trying to verify one pact at a time, with pact provider proxy.
For some odd reason, I was stuck on older version of the gems, where I
had it working with the following:

puts "Checking Pact #{pact} on #{service}"
ENV['PACT_DESCRIPTION']=pact
Rake::Task["pact:verify:#{service}"].execute

This no longer works. It now verifies all pacts for each 'execute'.
I've seen some code changes in pact 1.5, but to me it was the inner
call that changed, user call is still using ENV. Is this a regression,
pact-proxy got left out? or a change in syntax?

I'm using this to force an order on the pact verification, across two
providers as that's the only way I have to load data on my two,
out-of-my-control coupled providers.

Older versions, where above code works
- pact (1.4.0)
- pact-mock_service (~> 0.2.0)
- pact-support (~> 0.1.2)
- pact-mock_service (0.2.3.pre.rc1)
- pact-support (~> 0.1.1)
- pact-support (0.1.4)
- pact-mock_service (= 0.2.3.pre.rc1)

New versions:
+ pact (1.7.0)
+ pact-mock_service (~> 0.5.0)
+ pact-support (~> 0.4.0)
+ pact-mock_service (0.5.1)
+ pact-support (~> 0.4.0)
+ pact-support (0.4.0)

Thanks
André

[Bethany Skurrie]

I'm a bit confused by the example. PACT_DESCRIPTION has only ever been a filter on the description of the interactions. The line:

ENV['PACT_DESCRIPTION']=pact

makes no sense in this context, unless every description in your pact file has the text of what ever value you've given "pact" in your code.

What does your provider proxy verify task look like?

André

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[André Allavena]

I programmatically set the ENV value to each of the pact description I
want to verify before calling the verification task. So

# First pact to verify
ENV['PACT_DESCRIPTION'] = 'description_of_my_first_pact

Rake::Task["pact:verify:#{service}"].execute

# Second pact to verify
ENV['PACT_DESCRIPTION'] = 'description_of_my_second_pact

Rake::Task["pact:verify:#{service}"].execute

etc.


I'm relying on https://github.com/realestate-com-au/pact/wiki/Verifying-pacts,
which suggested using
$ rake pact:verify PACT_DESCRIPTION="a request for something"
PACT_PROVIDER_STATE="something exists"


My whole Rake task (which I'm happy to accept is a hack, I haven't
figured out a better way to do it)


desc('Run the provider integration tests, in the specified order, ')
task(:provider_verify_ordered) do
Rake::TestTask.new(:dummy_name) do
require 'pact/provider/proxy/tasks'
Pact::ProxyVerificationTask.new :userapi_service do | task |
task.pact_url
'./spec/pacts/userapi_service_consumer-userapi_service_provider.json'
task.provider_base_url 'https://userapi.****.com/'
end
Pact::ProxyVerificationTask.new :otherapi_service do | task |
task.pact_url
'./spec/pacts/otherapi_service_consumer-otherapi_service_provider.json'
task.provider_base_url 'https://otherapi.*****.com'
end

pacts_to_verify= [['registration
success','user'],['get_offer','other'],['issue offer','offer'],
['payment','user'],['get extra offers','other']]

pacts_to_verify.each{ |pact,s|
begin
service = (s == 'user' ? 'userapi_service' : 'otherapi_service')

puts "Checking Pact #{pact} on #{service}"
ENV['PACT_DESCRIPTION']=pact
Rake::Task["pact:verify:#{service}"].execute

rescue Exception => e
puts e.inspect
puts "Checking Pact #{pact} failed\n\n"
end
}

# Code that greps through the files to count how many pacts there are
to make sure I didn't miss any.


André

[Bethany Skurrie]

Firstly, I think when you say "pact", you mean "interaction". Interaction = request + response. Pact = many interactions. That's why I was confused!

Let me have a look at that, I'm sure there is a better way. 

[Bethany Skurrie]

I've pushed out a new version of pact-provider-proxy that will respect the PACT_DESCRIPTION and PACT_PROVIDER_STATE variables.

I've also had a go at simplifying the script here: https://gist.github.com/bethesque/08d4c4cca2e76653420b

[André Allavena]

Great thanks.

I can confirm this fixes the issue for me.

Thanks for the script clean up and rewrite. I had missed the tasks
were raising SystemExit when verification failed. I'll catch that and
continue (I prefer it that way with this provider, it shouldn't be
that way generally though)

André