reference params in test cases

[logicminds]

For auto generated tests that contain references to variables $param1 that are also parameters we should just reference the params block instead of inserting the variable in in the test.

[logicminds]

it do
 is_expected.to contain_exec('create stuff')
  .with({
    'provider' => params[:provider]
  })

end

it do
 is_expected.to contain_exec('create stuff')
  .with({
    'provider' => params[:provider],
    'source' => "/tmp/#{params[:source]}"
  })

end