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require File.expand_path(File.dirname(__FILE__) + '/../test_helper')
class PathCollectionByDefaultTest < Test::Unit::TestCase
def setup
@klass = Class.new
@machine = StateMachine::Machine.new(@klass)
@machine.state :parked
@object = @klass.new
@object.state = 'parked'
@paths = StateMachine::PathCollection.new(@object, @machine)
end
def test_should_have_an_object
assert_equal @object, @paths.object
end
def test_should_have_a_machine
assert_equal @machine, @paths.machine
end
def test_should_have_a_from_name
assert_equal :parked, @paths.from_name
end
def test_should_not_have_a_to_name
assert_nil @paths.to_name
end
def test_should_have_no_from_states
assert_equal [], @paths.from_states
end
def test_should_have_no_to_states
assert_equal [], @paths.to_states
end
def test_should_have_no_events
assert_equal [], @paths.events
end
def test_should_have_no_paths
assert @paths.empty?
end
end
class PathCollectionTest < Test::Unit::TestCase
def setup
@klass = Class.new
@machine = StateMachine::Machine.new(@klass)
@object = @klass.new
end
def test_should_raise_exception_if_invalid_option_specified
exception = assert_raise(ArgumentError) {StateMachine::PathCollection.new(@object, @machine, :invalid => true)}
assert_equal 'Invalid key(s): invalid', exception.message
end
def test_should_raise_exception_if_invalid_from_state_specified
exception = assert_raise(IndexError) {StateMachine::PathCollection.new(@object, @machine, :from => :invalid)}
assert_equal ':invalid is an invalid name', exception.message
end
def test_should_raise_exception_if_invalid_to_state_specified
exception = assert_raise(IndexError) {StateMachine::PathCollection.new(@object, @machine, :to => :invalid)}
assert_equal ':invalid is an invalid name', exception.message
end
end
class PathCollectionWithPathsTest < Test::Unit::TestCase
def setup
@klass = Class.new
@machine = StateMachine::Machine.new(@klass)
@machine.state :parked, :idling, :first_gear
@machine.event :ignite do
transition :parked => :idling
end
@machine.event :shift_up do
transition :idling => :first_gear
end
@object = @klass.new
@object.state = 'parked'
@paths = StateMachine::PathCollection.new(@object, @machine)
end
def test_should_enumerate_paths
assert_equal [[
StateMachine::Transition.new(@object, @machine, :ignite, :parked, :idling),
StateMachine::Transition.new(@object, @machine, :shift_up, :idling, :first_gear)
]], @paths
end
def test_should_have_a_from_name
assert_equal :parked, @paths.from_name
end
def test_should_not_have_a_to_name
assert_nil @paths.to_name
end
def test_should_have_from_states
assert_equal [:parked, :idling], @paths.from_states
end
def test_should_have_to_states
assert_equal [:idling, :first_gear], @paths.to_states
end
def test_should_have_no_events
assert_equal [:ignite, :shift_up], @paths.events
end
end
class PathWithGuardedPathsTest < Test::Unit::TestCase
def setup
@klass = Class.new
@machine = StateMachine::Machine.new(@klass)
@machine.state :parked, :idling, :first_gear
@machine.event :ignite do
transition :parked => :idling, :if => lambda {false}
end
@object = @klass.new
@object.state = 'parked'
end
def test_should_not_enumerate_paths_if_guard_enabled
assert_equal [], StateMachine::PathCollection.new(@object, @machine)
end
def test_should_enumerate_paths_if_guard_disabled
paths = StateMachine::PathCollection.new(@object, @machine, :guard => false)
assert_equal [[
StateMachine::Transition.new(@object, @machine, :ignite, :parked, :idling)
]], paths
end
end
class PathCollectionWithDuplicateNodesTest < Test::Unit::TestCase
def setup
@klass = Class.new
@machine = StateMachine::Machine.new(@klass)
@machine.state :parked, :idling
@machine.event :shift_up do
transition :parked => :idling, :idling => :first_gear
end
@machine.event :park do
transition :first_gear => :idling
end
@object = @klass.new
@object.state = 'parked'
@paths = StateMachine::PathCollection.new(@object, @machine)
end
def test_should_not_include_duplicates_in_from_states
assert_equal [:parked, :idling, :first_gear], @paths.from_states
end
def test_should_not_include_duplicates_in_to_states
assert_equal [:idling, :first_gear], @paths.to_states
end
def test_should_not_include_duplicates_in_events
assert_equal [:shift_up, :park], @paths.events
end
end
class PathCollectionWithFromStateTest < Test::Unit::TestCase
def setup
@klass = Class.new
@machine = StateMachine::Machine.new(@klass)
@machine.state :parked, :idling, :first_gear
@machine.event :park do
transition :idling => :parked
end
@object = @klass.new
@object.state = 'parked'
@paths = StateMachine::PathCollection.new(@object, @machine, :from => :idling)
end
def test_should_generate_paths_from_custom_from_state
assert_equal [[
StateMachine::Transition.new(@object, @machine, :park, :idling, :parked)
]], @paths
end
def test_should_have_a_from_name
assert_equal :idling, @paths.from_name
end
end
class PathCollectionWithToStateTest < Test::Unit::TestCase
def setup
@klass = Class.new
@machine = StateMachine::Machine.new(@klass)
@machine.state :parked, :idling
@machine.event :ignite do
transition :parked => :idling
end
@machine.event :shift_up do
transition :parked => :idling, :idling => :first_gear
end
@machine.event :shift_down do
transition :first_gear => :idling
end
@object = @klass.new
@object.state = 'parked'
@paths = StateMachine::PathCollection.new(@object, @machine, :to => :idling)
end
def test_should_stop_paths_once_target_state_reached
assert_equal [
[StateMachine::Transition.new(@object, @machine, :ignite, :parked, :idling)],
[StateMachine::Transition.new(@object, @machine, :shift_up, :parked, :idling)]
], @paths
end
end
class PathCollectionWithDeepPathsTest < Test::Unit::TestCase
def setup
@klass = Class.new
@machine = StateMachine::Machine.new(@klass)
@machine.state :parked, :idling
@machine.event :ignite do
transition :parked => :idling
end
@machine.event :shift_up do
transition :parked => :idling, :idling => :first_gear
end
@machine.event :shift_down do
transition :first_gear => :idling
end
@object = @klass.new
@object.state = 'parked'
@paths = StateMachine::PathCollection.new(@object, @machine, :to => :idling, :deep => true)
end
def test_should_allow_target_to_be_reached_more_than_once_per_path
assert_equal [
[
StateMachine::Transition.new(@object, @machine, :ignite, :parked, :idling)
],
[
StateMachine::Transition.new(@object, @machine, :ignite, :parked, :idling),
StateMachine::Transition.new(@object, @machine, :shift_up, :idling, :first_gear),
StateMachine::Transition.new(@object, @machine, :shift_down, :first_gear, :idling)
],
[
StateMachine::Transition.new(@object, @machine, :shift_up, :parked, :idling)
],
[
StateMachine::Transition.new(@object, @machine, :shift_up, :parked, :idling),
StateMachine::Transition.new(@object, @machine, :shift_up, :idling, :first_gear),
StateMachine::Transition.new(@object, @machine, :shift_down, :first_gear, :idling)
]
], @paths
end
end
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