rspec failing with Hiera 3 error

[silug]

Trying to run bundle exec rake spec, I get the following failure:

     Failure/Error: it { is_expected.to compile.with_all_deps }
       error during compilation: Evaluation Error: Error while evaluating a Function Call, Lookup of key 'lookup_options' failed: Hiera 3 is not installed (line: 4, column: 1)

This appears to be coming from this block in spec/spec_helper.rb:

default_hiera_config =<<-EOM
---
:backends:
  - "rspec"
  - "yaml"
:yaml:
  :datadir: "stub"
:hierarchy:
  - "%{custom_hiera}"
  - "%{module_name}"
  - "default"
EOM

[silug]

Fixed with #46.