Class: ParameterGenerator

Inherits:
Object
  • Object
show all
Defined in:
lib/rast/parameter_generator.rb

Overview

Generates the test parameters.

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(yaml_path: '') ⇒ ParameterGenerator

Returns a new instance of ParameterGenerator.



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# File 'lib/rast/parameter_generator.rb', line 16

def initialize(yaml_path: '')
  @specs_config = YAML.load_file(yaml_path)['specs'] if File.exist? yaml_path
end

Instance Attribute Details

#specs_config ⇒ Object

Allow access so yaml-less can build the config via dsl.



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# File 'lib/rast/parameter_generator.rb', line 14

def specs_config
  @specs_config
end

Instance Method Details

#generate_fixtures(spec_id: '') ⇒ Object

addCase. Generate the combinations, then add the fixture to the final list



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# File 'lib/rast/parameter_generator.rb', line 21

def generate_fixtures(spec_id: '')
  return nil if @specs_config.nil?

  spec_config = @specs_config[spec_id]

  raise "Spec not found for: #{spec_id}. Check yaml file." if spec_config.nil?

  spec_config[:description] = spec_id

  # Keep, for backwards compatibility
  spec_config['rules'] ||= spec_config['outcomes']
  spec_config['default'] ||= spec_config['else']

  spec_config['variables'] = expand_variables(spec_config['variables'])

  spec = build_spec(spec_config)

  list = []

  variables = spec.variables
  # dict.first method returns the first key and value as an array, so invoking
  # .first, then . last would return the
  # first value.
  var_first = variables.first
  multipliers = []

  (1...variables.size).each { |i| multipliers << variables.values[i].dup }
  scenarios = var_first.last.product(*multipliers)

  add_fixtures(scenarios: scenarios, spec: spec, list: list)
  list
end