Class: Gold::Coverage::Results

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

Overview

Holds the collected coverage data.

Instance Method Summary collapse

Constructor Details

#initialize(machine) ⇒ Results

Returns a new instance of Results.



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# File 'lib/gold/coverage.rb', line 41

def initialize(machine)
  @machine = machine
  @covered = Set.new
end

Instance Method Details

#cover(from, to) ⇒ Object

Records when a transition is made from one state to another.



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# File 'lib/gold/coverage.rb', line 47

def cover(from, to)
  @covered.add(Transition.new(from, to))
end

#to_h ⇒ Object

Iterates over transitions that have been made thus far. This is in the same form as ‘Statesman::Machine#successors`, so the two can be compared to see where coverage is lacking.



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# File 'lib/gold/coverage.rb', line 54

def to_h
  @covered.each_with_object(Hash.new { [] }) do |transition, hash|
    hash[transition.from] = hash[transition.from] << transition.to
    hash
  end
end

#to_svg(path) ⇒ Object

Generates an SVG diagram of the coverage that has been captured so far. Covered transitions are colored green and uncovered transitions are colored red.



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# File 'lib/gold/coverage.rb', line 64

def to_svg(path)
  coverage = to_h
  callback = lambda do |edge|
    from = edge.tail_node
    to = edge.head_node
    edge[:color] =
      coverage.key?(from) && coverage[from].include?(to) ? "green" : "red"
  end
  Gold::Diagram.new(@machine, edge_callback: callback).render(path)
end