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pull/13668/head
Mihai Galos 2022-03-06 16:20:30 +01:00
parent 2bf7b519b2
commit c25e91f660
2 changed files with 30 additions and 27 deletions
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1
vlib/statemachine/statemachine.v
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@ -1,6 +1,7 @@
module statemachine module statemachine
pub type EventHandlerFn = fn (receiver voidptr) pub type EventHandlerFn = fn (receiver voidptr)
pub type ConditionFn = fn (receiver voidptr) bool pub type ConditionFn = fn (receiver voidptr) bool
struct State { struct State {

38
vlib/statemachine/statemachine_test.v
View File

@ -8,9 +8,9 @@ mut:
fn test_statemachine_works_when_single_transition() { fn test_statemachine_works_when_single_transition() {
mut receiver := &MyReceiver{} mut receiver := &MyReceiver{}
mut s := statemachine.new() mut s := statemachine.new()
s.add_state("A",on_state_entry, on_state_run, on_state_exit) s.add_state('A', on_state_entry, on_state_run, on_state_exit)
s.add_state("B",on_state_entry, on_state_run, on_state_exit) s.add_state('B', on_state_entry, on_state_run, on_state_exit)
s.add_transition("A", "B", condition_transition) s.add_transition('A', 'B', condition_transition)
s.run(receiver) s.run(receiver)
assert receiver.data.len == 3 assert receiver.data.len == 3
@ -19,36 +19,38 @@ fn test_statemachine_works_when_single_transition() {
fn test_statemachine_works_when_typical() { fn test_statemachine_works_when_typical() {
mut receiver := &MyReceiver{} mut receiver := &MyReceiver{}
mut s := statemachine.new() mut s := statemachine.new()
s.add_state("A",on_state_entry, on_state_run, on_state_exit) s.add_state('A', on_state_entry, on_state_run, on_state_exit)
s.add_state("B",on_state_entry, on_state_run, on_state_exit) s.add_state('B', on_state_entry, on_state_run, on_state_exit)
s.add_transition("A", "B", condition_transition) s.add_transition('A', 'B', condition_transition)
s.run(receiver) s.run(receiver)
assert receiver.data[0] == "on_state_exit" assert receiver.data[0] == 'on_state_exit'
assert receiver.data[1] == "on_state_entry" assert receiver.data[1] == 'on_state_entry'
assert receiver.data[2] == "on_state_run" assert receiver.data[2] == 'on_state_run'
} }
fn test_statemachine_works_when_final_state() { fn test_statemachine_works_when_final_state() {
mut receiver := &MyReceiver{} mut receiver := &MyReceiver{}
mut s := statemachine.new() mut s := statemachine.new()
s.add_state("A",on_state_entry, on_state_run, on_state_exit) s.add_state('A', on_state_entry, on_state_run, on_state_exit)
s.add_state("B",on_state_entry, on_state_run, on_state_exit) s.add_state('B', on_state_entry, on_state_run, on_state_exit)
s.add_transition("A", "B", condition_transition) s.add_transition('A', 'B', condition_transition)
s.run(receiver) s.run(receiver)
s.run(receiver) s.run(receiver)
assert receiver.data.len == 3 assert receiver.data.len == 3
} }
fn on_state_entry(mut receiver &MyReceiver) { fn on_state_entry(mut receiver MyReceiver) {
receiver.data << "on_state_entry" receiver.data << 'on_state_entry'
} }
fn on_state_run(mut receiver &MyReceiver) {
receiver.data << "on_state_run" fn on_state_run(mut receiver MyReceiver) {
receiver.data << 'on_state_run'
} }
fn on_state_exit(mut receiver &MyReceiver) {
receiver.data << "on_state_exit" fn on_state_exit(mut receiver MyReceiver) {
receiver.data << 'on_state_exit'
} }
fn condition_transition(receiver &MyReceiver) bool { fn condition_transition(receiver &MyReceiver) bool {