Add integration tests for hiera 5 environment level configuration

Author: kpaulisse

spec/octocatalog-diff/fixtures/repos/hiera5/hiera.yaml

@@ -0,0 +1,16 @@
+---
+version: 5
+defaults:
+  datadir: hieradata
+  data_hash: yaml_data
+
+hierarchy:
+  - name: "Default structure data"
+    path: "nodes/%{::fqdn}.yaml"
+
+  - name: "Special data"
+    path: "%{::datacenter}.yaml"
+    datadir: special
+
+  - name: "Common data"
+    path: "common.yaml"

spec/octocatalog-diff/integration/hiera5_spec.rb

@@ -68,4 +68,52 @@
       end
     end
   end
+
+  context 'with hiera 5 non-global, environment specific configuration' do
+    if ENV['PUPPET_VERSION'].start_with?('3')
+      it 'should run but not use hiera values under puppet 3' do
+        argv = ['-n', 'rspec-node.github.net']
+        hash = {
+          spec_fact_file: 'facts.yaml',
+          spec_repo: 'hiera5',
+          spec_catalog_old: 'catalog-empty.json'
+        }
+        result = OctocatalogDiff::Integration.integration(hash.merge(argv: argv))
+        expect(result.exitcode).to eq(2), OctocatalogDiff::Integration.format_exception(result)
+
+        to_catalog = result.to
+
+        param1 = { 'content' => 'hard-coded' }
+        expect(to_catalog.resource(type: 'File', title: '/tmp/nodes')['parameters']).to eq(param1)
+
+        param2 = { 'content' => 'hard-coded' }
+        expect(to_catalog.resource(type: 'File', title: '/tmp/special')['parameters']).to eq(param2)
+
+        param3 = { 'content' => 'hard-coded' }
+        expect(to_catalog.resource(type: 'File', title: '/tmp/common')['parameters']).to eq(param3)
+      end
+    else
+      it 'should succeed in building the catalog' do
+        argv = ['-n', 'rspec-node.github.net']
+        hash = {
+          spec_fact_file: 'facts.yaml',
+          spec_repo: 'hiera5',
+          spec_catalog_old: 'catalog-empty.json'
+        }
+        result = OctocatalogDiff::Integration.integration(hash.merge(argv: argv))
+        expect(result.exitcode).to eq(2), OctocatalogDiff::Integration.format_exception(result)
+
+        to_catalog = result.to
+
+        param1 = { 'content' => 'Greets from nodes' }
+        expect(to_catalog.resource(type: 'File', title: '/tmp/nodes')['parameters']).to eq(param1)
+
+        param2 = { 'content' => 'Greets from special' }
+        expect(to_catalog.resource(type: 'File', title: '/tmp/special')['parameters']).to eq(param2)
+
+        param3 = { 'content' => 'Greets from common' }
+        expect(to_catalog.resource(type: 'File', title: '/tmp/common')['parameters']).to eq(param3)
+      end
+    end
+  end
 end