Class: Fino::AbTesting::Experiment

Inherits:
Object
  • Object
show all
Includes:
PrettyInspectable
Defined in:
lib/fino/ab_testing/experiment.rb

Constant Summary collapse

TOTAL_PERCENTAGE = 
100.0

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods included from PrettyInspectable

#inspect, #pretty_print

Constructor Details

#initialize(setting_definition) ⇒ Experiment

Returns a new instance of Experiment.



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# File 'lib/fino/ab_testing/experiment.rb', line 10

def initialize(setting_definition)
  @setting_definition = setting_definition
  @user_variants = []
end

Instance Attribute Details

#setting_definition ⇒ Object (readonly)

Returns the value of attribute setting_definition.



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# File 'lib/fino/ab_testing/experiment.rb', line 8

def setting_definition
  @setting_definition
end

Instance Method Details

#<<(variant) ⇒ Object 



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# File 'lib/fino/ab_testing/experiment.rb', line 15

def <<(variant)
  @user_variants << variant

  @variants = nil
  @value_by_variant_id = nil
end

#value(for:) ⇒ Object 



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# File 'lib/fino/ab_testing/experiment.rb', line 35

def value(for:)
  variant = variant(for: binding.local_variable_get(:for))

  value_by_variant_id.fetch(
    variant.id,
    Fino::AbTesting::Variant::CONTROL_VALUE
  )
end

#variant(for:) ⇒ Object 



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# File 'lib/fino/ab_testing/experiment.rb', line 44

def variant(for:)
  Fino::AbTesting::VariantPicker.new(setting_definition).call(
    variants,
    binding.local_variable_get(:for)
  )
end

#variants ⇒ Object 



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# File 'lib/fino/ab_testing/experiment.rb', line 22

def variants
  return @variants if @variants
  return @variants = [] if @user_variants.empty?

  @variants = [
    Fino::AbTesting::Variant.new(
      percentage: TOTAL_PERCENTAGE - @user_variants.sum(&:percentage),
      value: Fino::AbTesting::Variant::CONTROL_VALUE
    ),
    *@user_variants
  ]
end