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rails--rails/activemodel/test/cases/state_machine_test.rb

312 lines
7.6 KiB
Ruby

require 'cases/helper'
class StateMachineSubject
include ActiveModel::StateMachine
state_machine do
state :open, :exit => :exit
state :closed, :enter => :enter
event :close, :success => :success_callback do
transitions :to => :closed, :from => [:open]
end
event :null do
transitions :to => :closed, :from => [:open], :guard => :always_false
end
end
state_machine :bar do
state :read
state :ended
event :foo do
transitions :to => :ended, :from => [:read]
end
end
def always_false
false
end
def success_callback
end
def enter
end
def exit
end
end
class StateMachineSubjectSubclass < StateMachineSubject
end
class StateMachineClassLevelTest < ActiveModel::TestCase
test 'defines a class level #state_machine method on its including class' do
assert StateMachineSubject.respond_to?(:state_machine)
end
test 'defines a class level #state_machines method on its including class' do
assert StateMachineSubject.respond_to?(:state_machines)
end
test 'class level #state_machine returns machine instance' do
assert_kind_of ActiveModel::StateMachine::Machine, StateMachineSubject.state_machine
end
test 'class level #state_machine returns machine instance with given name' do
assert_kind_of ActiveModel::StateMachine::Machine, StateMachineSubject.state_machine(:default)
end
test 'class level #state_machines returns hash of machine instances' do
assert_kind_of ActiveModel::StateMachine::Machine, StateMachineSubject.state_machines[:default]
end
test "should return a select friendly array of states in the form of [['Friendly name', 'state_name']]" do
assert_equal [['Open', 'open'], ['Closed', 'closed']], StateMachineSubject.state_machine.states_for_select
end
end
class StateMachineInstanceLevelTest < ActiveModel::TestCase
def setup
@foo = StateMachineSubject.new
end
test 'defines an accessor for the current state' do
assert @foo.respond_to?(:current_state)
end
test 'defines a state querying instance method on including class' do
assert @foo.respond_to?(:open?)
end
test 'defines an event! instance method' do
assert @foo.respond_to?(:close!)
end
test 'defines an event instance method' do
assert @foo.respond_to?(:close)
end
end
class StateMachineInitialStatesTest < ActiveModel::TestCase
def setup
@foo = StateMachineSubject.new
end
test 'sets the initial state' do
assert_equal :open, @foo.current_state
end
test '#open? should be initially true' do
assert @foo.open?
end
test '#closed? should be initially false' do
assert !@foo.closed?
end
test 'uses the first state defined if no initial state is given' do
assert_equal :read, @foo.current_state(:bar)
end
end
class StateMachineEventFiringWithPersistenceTest < ActiveModel::TestCase
def setup
@subj = StateMachineSubject.new
end
test 'updates the current state' do
@subj.close!
assert_equal :closed, @subj.current_state
end
test 'fires the Event' do
@subj.class.state_machine.events[:close].expects(:fire).with(@subj)
@subj.close!
end
test 'calls the success callback if one was provided' do
@subj.expects(:success_callback)
@subj.close!
end
test 'attempts to persist if write_state is defined' do
def @subj.write_state
end
@subj.expects(:write_state)
@subj.close!
end
end
class StateMachineEventFiringWithoutPersistence < ActiveModel::TestCase
test 'updates the current state' do
subj = StateMachineSubject.new
assert_equal :open, subj.current_state
subj.close
assert_equal :closed, subj.current_state
end
test 'fires the Event' do
subj = StateMachineSubject.new
StateMachineSubject.state_machine.events[:close].expects(:fire).with(subj)
subj.close
end
test 'attempts to persist if write_state is defined' do
subj = StateMachineSubject.new
def subj.write_state
end
subj.expects(:write_state_without_persistence)
subj.close
end
end
class StateMachinePersistenceTest < ActiveModel::TestCase
test 'reads the state if it has not been set and read_state is defined' do
subj = StateMachineSubject.new
def subj.read_state
end
subj.expects(:read_state).with(StateMachineSubject.state_machine)
subj.current_state
end
end
class StateMachineEventCallbacksTest < ActiveModel::TestCase
test 'should call aasm_event_fired if defined and successful for bang fire' do
subj = StateMachineSubject.new
def subj.aasm_event_fired(from, to)
end
subj.expects(:event_fired)
subj.close!
end
test 'should call aasm_event_fired if defined and successful for non-bang fire' do
subj = StateMachineSubject.new
def subj.aasm_event_fired(from, to)
end
subj.expects(:event_fired)
subj.close
end
test 'should call aasm_event_failed if defined and transition failed for bang fire' do
subj = StateMachineSubject.new
def subj.event_failed(event)
end
subj.expects(:event_failed)
subj.null!
end
test 'should call aasm_event_failed if defined and transition failed for non-bang fire' do
subj = StateMachineSubject.new
def subj.aasm_event_failed(event)
end
subj.expects(:event_failed)
subj.null
end
end
class StateMachineStateActionsTest < ActiveModel::TestCase
test "calls enter when entering state" do
subj = StateMachineSubject.new
subj.expects(:enter)
subj.close
end
test "calls exit when exiting state" do
subj = StateMachineSubject.new
subj.expects(:exit)
subj.close
end
end
class StateMachineInheritanceTest < ActiveModel::TestCase
test "has the same states as its parent" do
assert_equal StateMachineSubject.state_machine.states, StateMachineSubjectSubclass.state_machine.states
end
test "has the same events as its parent" do
assert_equal StateMachineSubject.state_machine.events, StateMachineSubjectSubclass.state_machine.events
end
end
class StateMachineSubject
state_machine :chetan_patil, :initial => :sleeping do
state :sleeping
state :showering
state :working
state :dating
event :wakeup do
transitions :from => :sleeping, :to => [:showering, :working]
end
event :dress do
transitions :from => :sleeping, :to => :working, :on_transition => :wear_clothes
transitions :from => :showering, :to => [:working, :dating], :on_transition => Proc.new { |obj, *args| obj.wear_clothes(*args) }
end
end
def wear_clothes(shirt_color, trouser_type)
end
end
class StateMachineWithComplexTransitionsTest < ActiveModel::TestCase
def setup
@subj = StateMachineSubject.new
end
test 'transitions to specified next state (sleeping to showering)' do
@subj.wakeup! :showering
assert_equal :showering, @subj.current_state(:chetan_patil)
end
test 'transitions to specified next state (sleeping to working)' do
@subj.wakeup! :working
assert_equal :working, @subj.current_state(:chetan_patil)
end
test 'transitions to default (first or showering) state' do
@subj.wakeup!
assert_equal :showering, @subj.current_state(:chetan_patil)
end
test 'transitions to default state when on_transition invoked' do
@subj.dress!(nil, 'purple', 'dressy')
assert_equal :working, @subj.current_state(:chetan_patil)
end
test 'calls on_transition method with args' do
@subj.wakeup! :showering
@subj.expects(:wear_clothes).with('blue', 'jeans')
@subj.dress! :working, 'blue', 'jeans'
end
test 'calls on_transition proc' do
@subj.wakeup! :showering
@subj.expects(:wear_clothes).with('purple', 'slacks')
@subj.dress!(:dating, 'purple', 'slacks')
end
end