test(requires): verify dependencies in vhosts

kitchen.yml

 suites:
   - name: default
     provisioner:
+      dependencies:
+        - name: test_dep
+          path: test/salt/default/states
       state_top:
         base:
           '*':
+            - test_dep.create_dependency_file
             - nginx._mapdata
             - nginx
       pillars:

test/integration/default/controls/config.rb

       its('content') { should include 'try_files $uri $uri/ =404;' }
       its('content') { should include 'include snippets/letsencrypt.conf;' }
     end
+    describe file "#{dir}/mysite_with_require" do
+      it { should be_file }
+      it { should be_owned_by file_owner }
+      it { should be_grouped_into file_group }
+      its('mode') { should cmp '0644' }
+      its('content') { should include 'server_name with-deps;' }
+      its('content') { should include 'listen 80;' }
+      its('content') { should include 'index index.html index.htm;' }
+      its('content') { should include 'location ~ .htm {' }
+      its('content') { should include 'try_files $uri $uri/ =404;' }
+    end
   end
 end

test/integration/default/controls/file.rb

+# frozen_string_literal: true
+
+control 'Dependency test file' do
+  title 'should exist'
+
+  describe file('/tmp/created_to_test_dependencies') do
+    it { should be_file }
+  end
+end

test/salt/default/pillar/nginx.sls

               - location ~ .htm:
                   - try_files: '$uri $uri/ =404'
               - include: 'snippets/letsencrypt.conf'
+      mysite_with_require:
+        enabled: true
+        config:
+          - server:
+              - server_name: with-deps
+              - listen:
+                  - '80'
+              - index: 'index.html index.htm'
+              - location ~ .htm:
+                  - try_files: '$uri $uri/ =404'
+        requires:
+          file: created_to_test_dependencies
+
   dh_param:
     'mydhparam2.pem':
       keysize: 2048

test/salt/default/states/test_dep/create_dependency_file.sls

+## this state creates a file that is used to test vhosts dependencies
+# (see https://github.com/saltstack-formulas/nginx-formula/pull/278)
+
+created_to_test_dependencies:
+  file.managed:
+    - name: /tmp/created_to_test_dependencies