rx_event_test.dart
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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);
});
}