Class: Triangle::Type

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

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(sides = []) ⇒ Type

Returns a new instance of Type.



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# File 'lib/triangle.rb', line 8

def initialize  sides=[]
  @sides = sides.sort
end

Instance Attribute Details

#sides ⇒ Object (readonly)

Returns the value of attribute sides.



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# File 'lib/triangle.rb', line 6

def sides
  @sides
end

Instance Method Details

#calculate ⇒ Object 



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# File 'lib/triangle.rb', line 12

def calculate
  sides.uniq! if valid?
  if sides.count == 1
    :equilateral
  elsif sides.count == 2
    :isosceles
  else
    :scalene
  end
end

#valid? ⇒ Boolean

Returns:

  • (Boolean)

Raises:

  • (RuntimeError) 


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# File 'lib/triangle.rb', line 23

def valid?
  raise RuntimeError, "Error - Side is less than or equal to 0" if sides.any? { |side| side <= 0 }
  raise RuntimeError, "Error - Sum of sides 1 and 2 cannot be greater or equal to side3" unless (sides[0] + sides[1]) > sides[2]
  return true
end