Add remote_file acceptance test

spec/acceptance/foreman_remote_file_spec.rb

@@ -0,0 +1,18 @@
+require 'spec_helper_acceptance'
+
+describe 'remote_file works' do
+  let(:pp) do
+    configure = fact('osfamily') == 'RedHat' && fact('operatingsystem') != 'Fedora'
+    <<-EOS
+    foreman::remote_file {"test": 
+       remote_location => "https://github.com/theforeman/puppet-foreman/archive/9.0.0.tar.gz",
+    }
+    EOS
+  end
+
+  it_behaves_like 'a idempotent resource'
+
+  describe file('test') do
+    its(:md5sum) { should eq '5ef89571e3775b4bc17e4f5a55d1c146' }
+  end
+end