Class: ChemistryKit::Formula::FormulaLab

Inherits:
Object
  • Object
show all
Defined in:
lib/chemistrykit/formula/formula_lab.rb

Overview

Factory class to assemble page objects with users

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(driver, chemist_repository, formulas_dir) ⇒ FormulaLab

Returns a new instance of FormulaLab.

Raises:

  • (ArgumentError) 


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# File 'lib/chemistrykit/formula/formula_lab.rb', line 12

def initialize(driver, chemist_repository, formulas_dir)
  @driver = driver
  @chemist_repository = chemist_repository
  raise ArgumentError, "Formula directory \"#{formulas_dir}\" does not exist!" unless File.directory?(formulas_dir)
  @formulas_dir = formulas_dir
  @sub_chemists = []
end

Instance Attribute Details

#formula ⇒ Object (readonly)

Returns the value of attribute formula.



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# File 'lib/chemistrykit/formula/formula_lab.rb', line 10

def formula
  @formula
end

Instance Method Details

#and_with(key) ⇒ Object 



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# File 'lib/chemistrykit/formula/formula_lab.rb', line 54

def and_with(key)
  @sub_chemists << @chemist_repository.load_chemist_by_key(key)
  self
end

#mix(formula_key = nil) ⇒ Object

Raises:

  • (ArgumentError) 


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# File 'lib/chemistrykit/formula/formula_lab.rb', line 25

def mix(formula_key = nil)
  @formula = formula_key ||= formula
  compose_chemists unless @sub_chemists.empty?
  raise ArgumentError, 'A formula key must be defined!' unless @formula
  formula_file = find_formula_file
  class_name = get_class_name formula_file
  formula = constantize(class_name).new(@driver)
  if formula.singleton_class.include?(ChemistryKit::Formula::ChemistAware)
    raise RuntimeError, "Trying to mix a formula: \"#{formula_key}\" that requires a user, but no user set!" unless @chemist
    formula.chemist = @chemist
  end
  formula
end

#using(formula_key) ⇒ Object 



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# File 'lib/chemistrykit/formula/formula_lab.rb', line 20

def using(formula_key)
  @formula = formula_key
  self
end

#with(key) ⇒ Object 



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# File 'lib/chemistrykit/formula/formula_lab.rb', line 39

def with(key)
  @chemist = @chemist_repository.load_chemist_by_key key
  self
end

#with_first(type) ⇒ Object 



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# File 'lib/chemistrykit/formula/formula_lab.rb', line 49

def with_first(type)
  @chemist = @chemist_repository.load_first_chemist_of_type type
  self
end

#with_random(type) ⇒ Object 



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# File 'lib/chemistrykit/formula/formula_lab.rb', line 44

def with_random(type)
  @chemist = @chemist_repository.load_random_chemist_of_type type
  self
end