func Test_DeterministicStateMachine(t *testing.T) {
var m sm.Machine
err := json.Unmarshal([]byte(`{
"name" : "test",
"machine" : "default",
"states" : [ "ok", "fail" ],
"transitions" : {
"ok" : { "fail" : [ { "type" : "deterministic", "parameter" : 1 } ] },
"fail" : { "ok" : [ { "type" : "deterministic", "parameter" : 1 } ] }
}
}`), &m)
assert.Nil(t, err)
ok, _ := m.GetState("ok")
fail, _ := m.GetState("fail")
assert.Equal(t, 2, len(m.States()), "Machine should have two states.")
assert.Equal(t, "ok", m.State().Name(), "Initial state should be 'ok'.")
assert.Equal(t, 1, len(ok.Transitions()), "Transition from 'ok' should be defined.")
assert.Equal(t, "fail", ok.Transitions()[0].To(), "Transition from 'ok' to 'fail' should be defined.")
assert.Equal(t, 1, len(fail.Transitions()), "Transition from 'fail' should be defined.")
assert.Equal(t, "ok", fail.Transitions()[0].To(), "Transition from 'fail' to 'ok' should be defined.")
time := 0.0
event, _ := m.Event(time)
assert.NotNil(t, event)
smEvent, _ := event.(*sm.Event)
assert.Equal(t, "ok", smEvent.From().Name())
assert.Equal(t, "fail", smEvent.To().Name())
time = event.Invoke()
assert.Equal(t, "fail", m.State().Name())
event, _ = m.Event(time)
assert.NotNil(t, event)
smEvent, _ = event.(*sm.Event)
assert.Equal(t, "fail", smEvent.From().Name())
assert.Equal(t, "ok", smEvent.To().Name())
}
