Puppet::Type::Postgresql_conf::ProviderRuby#exists? raises an error when multiple matching config items are found Failure/Error: expect { provider.exists? }.to raise_error(Puppet::Error, 'found multiple config items of your_key found, please fix this') expected Puppet::Error with "found multiple config items of your_key found, please fix this", got #<Puppet::Error: found multiple config items of your_key, please fix this> with backtrace: # ./lib/puppet/provider/postgresql_conf/ruby.rb:77:in `exists?' # ./spec/unit/provider/postgresql_conf/ruby_spec.rb:49:in `block (4 levels) in <top (required)>' # ./spec/unit/provider/postgresql_conf/ruby_spec.rb:49:in `block (3 levels) in <top (required)>' # ./vendor/bundle/ruby/2.7.0/bin/rspec:23:in `load' # ./vendor/bundle/ruby/2.7.0/bin/rspec:23:in `<top (required)>' # /opt/hostedtoolcache/Ruby/2.7.8/x64/bin/bundle:23:in `load' # /opt/hostedtoolcache/Ruby/2.7.8/x64/bin/bundle:23:in `<main>'