rx_workers_test.dart
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import 'dart:async';
import 'package:flutter_test/flutter_test.dart';
import 'package:get/get.dart';
void main() {
test('once', () async {
final count = 0.obs;
var result = -1;
once(count, (_) {
result = _ as int;
});
count.value++;
await Future.delayed(Duration.zero);
expect(1, result);
count.value++;
await Future.delayed(Duration.zero);
expect(1, result);
count.value++;
await Future.delayed(Duration.zero);
expect(1, result);
});
test('ever', () async {
final count = 0.obs;
var result = -1;
ever(count, (_) {
result = _ as int;
});
count.value++;
await Future.delayed(Duration.zero);
expect(1, result);
count.value++;
await Future.delayed(Duration.zero);
expect(2, result);
count.value++;
await Future.delayed(Duration.zero);
expect(3, result);
});
test('debounce', () async {
final count = 0.obs;
var result = -1;
debounce(count, (_) {
// print(_);
result = _ as int;
}, time: Duration(milliseconds: 100));
count.value++;
count.value++;
count.value++;
count.value++;
await Future.delayed(Duration.zero);
expect(-1, result);
await Future.delayed(Duration(milliseconds: 100));
expect(4, result);
});
test('interval', () async {
final count = 0.obs;
var result = -1;
interval(count, (_) {
// print(_);
result = _ as int;
}, time: Duration(milliseconds: 100));
count.value++;
await Future.delayed(Duration.zero);
await Future.delayed(Duration(milliseconds: 100));
expect(1, result);
count.value++;
count.value++;
count.value++;
await Future.delayed(Duration.zero);
await Future.delayed(Duration(milliseconds: 100));
expect(2, result);
count.value++;
await Future.delayed(Duration.zero);
await Future.delayed(Duration(milliseconds: 100));
expect(5, result);
});
test('bindStream test', () async {
var count = 0;
final controller = StreamController<int>();
final rx = 0.obs;
rx.listen((value) {
count = value;
});
rx.bindStream(controller.stream);
expect(count, 0);
controller.add(555);
await Future.delayed(Duration.zero);
expect(count, 555);
});
test('Rx same value will not call the same listener', () async {
var reactiveInteger = RxInt(2);
var timesCalled = 0;
reactiveInteger.listen((newInt) {
timesCalled++;
});
// we call 3
reactiveInteger.call(3);
// then repeat twice
reactiveInteger.call(3);
reactiveInteger.call(3);
await Future.delayed(Duration(milliseconds: 100));
expect(1, timesCalled);
});
test('RxEvent same value will trigger the listener when trigger', () async {
var reactiveInteger = RxEvent<int>(2);
var timesCalled = 0;
reactiveInteger.listen((newInt) {
timesCalled++;
});
// we call 3
reactiveInteger.trigger(3);
// then repeat twice
reactiveInteger.trigger(3);
reactiveInteger.trigger(3);
await Future.delayed(Duration(milliseconds: 100));
expect(3, timesCalled);
});
test('RxEvent same value will not trigger the listener when call', () async {
var reactiveInteger = RxEvent<int>(2);
var timesCalled = 0;
reactiveInteger.listen((newInt) {
timesCalled++;
});
// we call 3
reactiveInteger.call(3);
// then repeat twice
reactiveInteger.call(3);
reactiveInteger.call(3);
await Future.delayed(Duration(milliseconds: 100));
expect(1, timesCalled);
});
}