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Porting functions to the modern Puppet 4.x API #14

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39 changes: 39 additions & 0 deletions lib/puppet/functions/galera/wsrep_options.rb
Original file line number Diff line number Diff line change
@@ -0,0 +1,39 @@
# This is an autogenerated function, ported from the original legacy version.
# It /should work/ as is, but will not have all the benefits of the modern
# function API. You should see the function docs to learn how to add function
# signatures for type safety and to document this function using puppet-strings.
#
# https://puppet.com/docs/puppet/latest/custom_functions_ruby.html
#
# ---- original file header ----

# ---- original file header ----
#
# @summary
# Summarise what the function does here
#
Puppet::Functions.create_function(:'galera::wsrep_options') do
# @param args
# The original array of arguments. Port this to individually managed params
# to get the full benefit of the modern function API.
#
# @return [Data type]
# Describe what the function returns here
#
dispatch :default_impl do
# Call the method named 'default_impl' when this is matched
# Port this to match individual params for better type safety
repeated_param 'Any', :args
end


def default_impl(*args)

opts = args[0]
opts.delete_if {|key, val| val.equal? :undef}
opts.sort.map do |k,v|
String(k) + "=" + String(v)
end

end
end
41 changes: 41 additions & 0 deletions spec/functions/galera_wsrep_options_spec.rb
Original file line number Diff line number Diff line change
@@ -0,0 +1,41 @@
require 'spec_helper'

describe 'galera::wsrep_options' do
# without knowing details about the implementation, this is the only test
# case that we can autogenerate. You should add more examples below!
it { is_expected.not_to eq(nil) }

#################################
# Below are some example test cases. You may uncomment and modify them to match
# your needs. Notice that they all expect the base error class of `StandardError`.
# This is because the autogenerated function uses an untyped array for parameters
# and relies on your implementation to do the validation. As you convert your
# function to proper dispatches and typed signatures, you should change the
# expected error of the argument validation examples to `ArgumentError`.
#
# Other error types you might encounter include
#
# * StandardError
# * ArgumentError
# * Puppet::ParseError
#
# Read more about writing function unit tests at https://rspec-puppet.com/documentation/functions/
#
# it 'raises an error if called with no argument' do
# is_expected.to run.with_params.and_raise_error(StandardError)
# end
#
# it 'raises an error if there is more than 1 arguments' do
# is_expected.to run.with_params({ 'foo' => 1 }, 'bar' => 2).and_raise_error(StandardError)
# end
#
# it 'raises an error if argument is not the proper type' do
# is_expected.to run.with_params('foo').and_raise_error(StandardError)
# end
#
# it 'returns the proper output' do
# is_expected.to run.with_params(123).and_return('the expected output')
# end
#################################

end