diff options
Diffstat (limited to 'activerecord/test')
-rw-r--r-- | activerecord/test/cases/state_machine_test.rb | 42 | ||||
-rw-r--r-- | activerecord/test/models/traffic_light.rb | 27 | ||||
-rw-r--r-- | activerecord/test/schema/schema.rb | 7 |
3 files changed, 76 insertions, 0 deletions
diff --git a/activerecord/test/cases/state_machine_test.rb b/activerecord/test/cases/state_machine_test.rb new file mode 100644 index 0000000000..5d13668bab --- /dev/null +++ b/activerecord/test/cases/state_machine_test.rb @@ -0,0 +1,42 @@ +require 'cases/helper' +require 'models/traffic_light' + +class StateMachineTest < ActiveRecord::TestCase + def setup + @light = TrafficLight.create! + end + + test "states initial state" do + assert @light.off? + assert_equal :off, @light.current_state + end + + test "transition to a valid state" do + @light.reset + assert @light.red? + assert_equal :red, @light.current_state + + @light.green_on + assert @light.green? + assert_equal :green, @light.current_state + end + + test "transition does not persist state" do + @light.reset + assert_equal :red, @light.current_state + @light.reload + assert_equal "off", @light.state + end + + test "transition does persists state" do + @light.reset! + assert_equal :red, @light.current_state + @light.reload + assert_equal "red", @light.state + end + + test "transition to an invalid state" do + assert_raise(ActiveModel::StateMachine::InvalidTransition) { @light.yellow_on } + assert_equal :off, @light.current_state + end +end diff --git a/activerecord/test/models/traffic_light.rb b/activerecord/test/models/traffic_light.rb new file mode 100644 index 0000000000..f8cfddbef9 --- /dev/null +++ b/activerecord/test/models/traffic_light.rb @@ -0,0 +1,27 @@ +class TrafficLight < ActiveRecord::Base + include ActiveRecord::StateMachine + + state_machine do + state :off + + state :red + state :green + state :yellow + + event :red_on do + transitions :to => :red, :from => [:yellow] + end + + event :green_on do + transitions :to => :green, :from => [:red] + end + + event :yellow_on do + transitions :to => :yellow, :from => [:green] + end + + event :reset do + transitions :to => :red, :from => [:off] + end + end +end diff --git a/activerecord/test/schema/schema.rb b/activerecord/test/schema/schema.rb index 2b7d3856b7..1e47cdbaf6 100644 --- a/activerecord/test/schema/schema.rb +++ b/activerecord/test/schema/schema.rb @@ -448,6 +448,13 @@ ActiveRecord::Schema.define do t.integer :pet_id, :integer end + create_table :traffic_lights, :force => true do |t| + t.string :location + t.string :state + t.datetime :created_at + t.datetime :updated_at + end + create_table :treasures, :force => true do |t| t.column :name, :string t.column :looter_id, :integer |