test(inspec): rename all files to avoid unnecessary _spec suffix

test/integration/default/controls/services.rb

@@ -0,0 +1,26 @@
+# frozen_string_literal: true
+
+service_name = 'postgresql'
+
+pg_port =
+  case platform[:family]
+  when 'debian', 'suse'
+    5433
+  else
+    5432
+  end
+
+control 'Postgres service' do
+  impact 0.5
+  title 'should be installed, enabled and running'
+
+  describe service(service_name) do
+    it { should be_installed }
+    it { should be_enabled }
+    it { should be_running }
+  end
+
+  describe port(pg_port) do
+    it { should be_listening }
+  end
+end