test: add test for describe-pacticipant

lib/pact_broker/client/pacticipants/describe.rb

@@ -21,7 +21,7 @@ def result_message
             pacticipant_entity.response.raw_body
           else
             properties = pacticipant_entity.response.body.except("_links", "_embedded")
-            if pacticipant_entity._embedded["labels"] && pacticipant_entity._embedded["labels"].any?
+            if pacticipant_entity._embedded && pacticipant_entity._embedded["labels"] && pacticipant_entity._embedded["labels"].any?
               properties["labels"] = pacticipant_entity._embedded["labels"]
             end
             PactBroker::Client::DescribeTextFormatter.call(properties)

spec/fixtures/approvals/describe_pacticipant.approved.txt

@@ -0,0 +1,2 @@
+Name: Pricing Service
+Repository Url: [email protected]:business-systems/pricing-service

spec/integration/describe_environment_spec.rb

@@ -0,0 +1,31 @@
+require 'pact_broker/client/cli/broker'
+
+RSpec.describe "describe-environment" do
+  let(:index_body_hash) do
+    {
+      _links: {
+        "pb:pacticipant" => {
+          href: "http://broker/pacticipants/{pacticipant}"
+        }
+      }
+    }
+  end
+
+  let(:pacticipant_body_hash) { JSON.parse(File.read("./spec/support/pacticipant_get.json")) }
+
+  let!(:index_request) do
+    stub_request(:get, "http://broker").to_return(status: 200, body: index_body_hash.to_json, headers: { "Content-Type" => "application/hal+json" }  )
+  end
+
+  let!(:pacticipant_request) do
+    stub_request(:get, "http://broker/pacticipants/Foo").to_return(status: 200, body: pacticipant_body_hash.to_json, headers: { "Content-Type" => "application/hal+json" }  )
+  end
+
+  let(:parameters) { %w{describe-pacticipant --name Foo --broker-base-url http://broker} }
+
+  subject { capture(:stdout) { PactBroker::Client::CLI::Broker.start(parameters) } }
+
+  it "prints the pacticipant properties" do
+    Approvals.verify(subject, :name => "describe_pacticipant", format: :txt)
+  end
+end

spec/spec_helper.rb

@@ -23,6 +23,19 @@
 
   config.filter_run_excluding skip_windows: is_windows, skip_ci: is_ci
   config.example_status_persistence_file_path = "./spec/examples.txt"
+
+  def capture(stream)
+    begin
+      stream = stream.to_s
+      eval "$#{stream} = StringIO.new"
+      yield
+      result = eval("$#{stream}").string
+    ensure
+      eval("$#{stream} = #{stream.upcase}")
+    end
+
+    result
+  end
 end
 
 module Pact