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aasm/spec/unit/event_spec.rb
2015-05-26 21:29:17 +12:00

322 lines
9.4 KiB
Ruby

require 'spec_helper'
describe 'adding an event' do
let(:state_machine) { AASM::StateMachine.new(:name) }
let(:event) do
AASM::Core::Event.new(:close_order, state_machine, {:success => :success_callback}) do
before :before_callback
after :after_callback
transitions :to => :closed, :from => [:open, :received]
end
end
it 'should set the name' do
expect(event.name).to eq(:close_order)
end
it 'should set the success callback' do
expect(event.options[:success]).to eq(:success_callback)
end
it 'should set the after callback' do
expect(event.options[:after]).to eq([:after_callback])
end
it 'should set the before callback' do
expect(event.options[:before]).to eq([:before_callback])
end
it 'should create transitions' do
transitions = event.transitions
expect(transitions[0].from).to eq(:open)
expect(transitions[0].to).to eq(:closed)
expect(transitions[1].from).to eq(:received)
expect(transitions[1].to).to eq(:closed)
end
end
describe 'transition inspection' do
let(:state_machine) { AASM::StateMachine.new(:name) }
let(:event) do
AASM::Core::Event.new(:run, state_machine) do
transitions :to => :running, :from => :sleeping
end
end
it 'should support inspecting transitions from other states' do
expect(event.transitions_from_state(:sleeping).map(&:to)).to eq([:running])
expect(event.transitions_from_state?(:sleeping)).to be_truthy
expect(event.transitions_from_state(:cleaning).map(&:to)).to eq([])
expect(event.transitions_from_state?(:cleaning)).to be_falsey
end
it 'should support inspecting transitions to other states' do
expect(event.transitions_to_state(:running).map(&:from)).to eq([:sleeping])
expect(event.transitions_to_state?(:running)).to be_truthy
expect(event.transitions_to_state(:cleaning).map(&:to)).to eq([])
expect(event.transitions_to_state?(:cleaning)).to be_falsey
end
end
describe 'transition inspection without from' do
let(:state_machine) { AASM::StateMachine.new(:name) }
let(:event) do
AASM::Core::Event.new(:run, state_machine) do
transitions :to => :running
end
end
it 'should support inspecting transitions from other states' do
expect(event.transitions_from_state(:sleeping).map(&:to)).to eq([:running])
expect(event.transitions_from_state?(:sleeping)).to be_truthy
expect(event.transitions_from_state(:cleaning).map(&:to)).to eq([:running])
expect(event.transitions_from_state?(:cleaning)).to be_truthy
end
end
describe 'firing an event' do
let(:state_machine) { AASM::StateMachine.new(:name) }
it 'should return nil if the transitions are empty' do
obj = double('object', :aasm => double('aasm', :current_state => 'open'))
event = AASM::Core::Event.new(:event, state_machine)
expect(event.fire(obj)).to be_nil
end
it 'should return the state of the first matching transition it finds' do
event = AASM::Core::Event.new(:event, state_machine) do
transitions :to => :closed, :from => [:open, :received]
end
obj = double('object', :aasm => double('aasm', :current_state => :open))
expect(event.fire(obj)).to eq(:closed)
end
it 'should call the guard with the params passed in' do
event = AASM::Core::Event.new(:event, state_machine) do
transitions :to => :closed, :from => [:open, :received], :guard => :guard_fn
end
obj = double('object', :aasm => double('aasm', :current_state => :open))
expect(obj).to receive(:guard_fn).with('arg1', 'arg2').and_return(true)
expect(event.fire(obj, {}, nil, 'arg1', 'arg2')).to eq(:closed)
end
end
describe 'should fire callbacks' do
describe 'success' do
it "if it's a symbol" do
ThisNameBetterNotBeInUse.instance_eval {
aasm do
event :with_symbol, :success => :symbol_success_callback do
transitions :to => :symbol, :from => [:initial]
end
end
}
model = ThisNameBetterNotBeInUse.new
expect(model).to receive(:symbol_success_callback)
model.with_symbol!
end
it "if it's a string" do
ThisNameBetterNotBeInUse.instance_eval {
aasm do
event :with_string, :success => 'string_success_callback' do
transitions :to => :string, :from => [:initial]
end
end
}
model = ThisNameBetterNotBeInUse.new
expect(model).to receive(:string_success_callback)
model.with_string!
end
it "if passed an array of strings and/or symbols" do
ThisNameBetterNotBeInUse.instance_eval {
aasm do
event :with_array, :success => [:success_callback1, 'success_callback2'] do
transitions :to => :array, :from => [:initial]
end
end
}
model = ThisNameBetterNotBeInUse.new
expect(model).to receive(:success_callback1)
expect(model).to receive(:success_callback2)
model.with_array!
end
it "if passed an array of strings and/or symbols and/or procs" do
ThisNameBetterNotBeInUse.instance_eval {
aasm do
event :with_array_including_procs, :success => [:success_callback1, 'success_callback2', lambda { proc_success_callback }] do
transitions :to => :array, :from => [:initial]
end
end
}
model = ThisNameBetterNotBeInUse.new
expect(model).to receive(:success_callback1)
expect(model).to receive(:success_callback2)
expect(model).to receive(:proc_success_callback)
model.with_array_including_procs!
end
it "if it's a proc" do
ThisNameBetterNotBeInUse.instance_eval {
aasm do
event :with_proc, :success => lambda { proc_success_callback } do
transitions :to => :proc, :from => [:initial]
end
end
}
model = ThisNameBetterNotBeInUse.new
expect(model).to receive(:proc_success_callback)
model.with_proc!
end
end
describe 'after' do
it "if they set different ways" do
ThisNameBetterNotBeInUse.instance_eval do
aasm do
event :with_afters, :after => :do_one_thing_after do
after do
do_another_thing_after_too
end
after do
do_third_thing_at_last
end
transitions :to => :proc, :from => [:initial]
end
end
end
model = ThisNameBetterNotBeInUse.new
expect(model).to receive(:do_one_thing_after).once.ordered
expect(model).to receive(:do_another_thing_after_too).once.ordered
expect(model).to receive(:do_third_thing_at_last).once.ordered
model.with_afters!
end
end
describe 'before' do
it "if it's a proc" do
ThisNameBetterNotBeInUse.instance_eval do
aasm do
event :before_as_proc do
before do
do_something_before
end
transitions :to => :proc, :from => [:initial]
end
end
end
model = ThisNameBetterNotBeInUse.new
expect(model).to receive(:do_something_before).once
model.before_as_proc!
end
end
it 'in right order' do
ThisNameBetterNotBeInUse.instance_eval do
aasm do
event :in_right_order, :after => :do_something_after do
before do
do_something_before
end
transitions :to => :proc, :from => [:initial]
end
end
end
model = ThisNameBetterNotBeInUse.new
expect(model).to receive(:do_something_before).once.ordered
expect(model).to receive(:do_something_after).once.ordered
model.in_right_order!
end
end
describe 'current event' do
let(:pe) {ParametrisedEvent.new}
it 'if no event has been triggered' do
expect(pe.aasm.current_event).to be_nil
end
it 'if a event has been triggered' do
pe.wakeup
expect(pe.aasm.current_event).to eql :wakeup
end
it 'if no event has been triggered' do
pe.wakeup!
expect(pe.aasm.current_event).to eql :wakeup!
end
end
describe 'parametrised events' do
let(:pe) {ParametrisedEvent.new}
it 'should transition to specified next state (sleeping to showering)' do
pe.wakeup!(:showering)
expect(pe.aasm.current_state).to eq(:showering)
end
it 'should transition to specified next state (sleeping to working)' do
pe.wakeup!(:working)
expect(pe.aasm.current_state).to eq(:working)
end
it 'should transition to default (first or showering) state' do
pe.wakeup!
expect(pe.aasm.current_state).to eq(:showering)
end
it 'should transition to default state when :after transition invoked' do
pe.dress!(nil, 'purple', 'dressy')
expect(pe.aasm.current_state).to eq(:working)
end
it 'should call :after transition method with args' do
pe.wakeup!(:showering)
expect(pe).to receive(:wear_clothes).with('blue', 'jeans')
pe.dress!(:working, 'blue', 'jeans')
end
it 'should call :after transition proc' do
pe.wakeup!(:showering)
expect(pe).to receive(:wear_clothes).with('purple', 'slacks')
pe.dress!(:dating, 'purple', 'slacks')
end
it 'should call :after transition with an array of methods' do
pe.wakeup!(:showering)
expect(pe).to receive(:condition_hair)
expect(pe).to receive(:fix_hair)
pe.dress!(:prettying_up)
end
end
describe 'event firing without persistence' do
it 'should attempt to persist if aasm_write_state is defined' do
foo = Foo.new
def foo.aasm_write_state; end
expect(foo).to be_open
expect(foo).to receive(:aasm_write_state_without_persistence)
foo.close
end
end