Merge pull request #1388 from puppetlabs/CAT-2026

(CAT-2026) Update how `pdk test unit --list` detects an error

lib/pdk/tests/unit.rb

@@ -246,10 +246,10 @@ def self.list(options = {})
         raise PDK::CLI::FatalError, format('Failed to find valid JSON in output from rspec: %{output}', output: output[:stdout]) unless rspec_json
 
         if rspec_json['examples'].empty?
-          rspec_message = rspec_json['messages'][0]
-          return [] if rspec_message == 'No examples found.'
+          return [] if rspec_json['messages'][0] == 'No examples found.'
+          return [] if rspec_json['messages'].include?("\nAll examples were filtered out")
 
-          raise PDK::CLI::FatalError, format('Unable to enumerate examples. rspec reported: %{message}', message: rspec_message)
+          raise PDK::CLI::FatalError, format('Unable to enumerate examples. rspec reported: %{message}', message: rspec_json['messages'])
         else
           examples = []
           rspec_json['examples'].each do |example|

spec/acceptance/test_unit_spec.rb

@@ -47,11 +47,9 @@
         require 'spec_helper'
 
         RSpec.describe 'passing test' do
-          on_supported_os(:facterversion => '2.4.6').each do |os, facts|
-            context "On OS \#{os}" do
-              it 'should pass' do
-                expect(true).to eq(true)
-              end
+          context 'On OS' do
+            it 'should pass' do
+              expect(true).to eq(true)
             end
           end
         end