class StateMachineIntrospector

Public Class Methods

new(subject, state_machine_name=nil) click to toggle source

# File lib/state_machine_rspec/state_machine_introspector.rb, line 2
def initialize(subject, state_machine_name=nil)
  @subject = subject
  @state_machine_name = state_machine_name
end

Public Instance Methods

current_state_value() click to toggle source

# File lib/state_machine_rspec/state_machine_introspector.rb, line 11
def current_state_value
  @subject.send(state_machine_attribute)
end

defined_states(states) click to toggle source

# File lib/state_machine_rspec/state_machine_introspector.rb, line 23
def defined_states(states)
  states.select { |s| state_defined? s }
end

invalid_events(events) click to toggle source

# File lib/state_machine_rspec/state_machine_introspector.rb, line 35
def invalid_events(events)
  events.reject { |e| valid_event? e }
end

state(name) click to toggle source

# File lib/state_machine_rspec/state_machine_introspector.rb, line 15
def state(name)
  state = state_machine.states.find { |s| s.name == name }
end

state_machine_attribute() click to toggle source

# File lib/state_machine_rspec/state_machine_introspector.rb, line 7
def state_machine_attribute
  state_machine.attribute
end

undefined_events(events) click to toggle source

# File lib/state_machine_rspec/state_machine_introspector.rb, line 27
def undefined_events(events)
  events.reject { |e| event_defined? e }
end

undefined_states(states) click to toggle source

# File lib/state_machine_rspec/state_machine_introspector.rb, line 19
def undefined_states(states)
  states.reject { |s| state_defined? s }
end

valid_events(events) click to toggle source

# File lib/state_machine_rspec/state_machine_introspector.rb, line 31
def valid_events(events)
  events.select { |e| valid_event? e }
end

Private Instance Methods

event_defined?(event) click to toggle source

# File lib/state_machine_rspec/state_machine_introspector.rb, line 59
def event_defined?(event)
  @subject.respond_to? "can_#{event}?"
end

state_defined?(state_name) click to toggle source

# File lib/state_machine_rspec/state_machine_introspector.rb, line 55
def state_defined?(state_name)
  state(state_name)
end

state_machine() click to toggle source

# File lib/state_machine_rspec/state_machine_introspector.rb, line 41
def state_machine
  if @state_machine_name
    unless machine = @subject.class.state_machines[@state_machine_name]
      raise StateMachineIntrospectorError,
        "#{@subject.class} does not have a state machine defined " +
        "on #{@state_machine_name}"
    end
  else
    machine = @subject.class.state_machine
  end

  machine
end

valid_event?(event) click to toggle source

# File lib/state_machine_rspec/state_machine_introspector.rb, line 63
def valid_event?(event)
  @subject.send("can_#{event}?")
end