benckmark_test.dart
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import 'dart:async';
import 'package:flutter/foundation.dart';
import 'package:flutter_test/flutter_test.dart';
import 'package:get/state_manager.dart';
int times = 3;
int get last => times - 1;
Future<int> valueNotifier() {
final c = Completer<int>();
final value = ValueNotifier<int>(0);
final timer = Stopwatch();
timer.start();
value.addListener(() {
if (last == value.value) {
timer.stop();
print(
"""${value.value} listeners notified | [VALUE_NOTIFIER] time: ${timer.elapsedMicroseconds}ms""");
c.complete(timer.elapsedMicroseconds);
}
});
for (var i = 0; i < times; i++) {
value.value = i;
}
return c.future;
}
Future<int> getValue() {
final c = Completer<int>();
final value = Value<int>(0);
final timer = Stopwatch();
timer.start();
value.addListener(() {
if (last == value.value) {
timer.stop();
print(
"""${value.value} listeners notified | [GETX_VALUE] time: ${timer.elapsedMicroseconds}ms""");
c.complete(timer.elapsedMicroseconds);
}
});
for (var i = 0; i < times; i++) {
value.value = i;
}
return c.future;
}
Future<int> stream() {
final c = Completer<int>();
final value = StreamController<int>();
final timer = Stopwatch();
timer.start();
value.stream.listen((v) {
if (last == v) {
timer.stop();
print(
"""$v listeners notified | [STREAM] time: ${timer.elapsedMicroseconds}ms""");
c.complete(timer.elapsedMicroseconds);
}
});
for (var i = 0; i < times; i++) {
value.add(i);
}
return c.future;
}
Future<int> getStream() {
final c = Completer<int>();
final value = GetStream<int>();
final timer = Stopwatch();
timer.start();
value.listen((v) {
if (last == v) {
timer.stop();
print(
"""$v listeners notified | [GET_STREAM] time: ${timer.elapsedMicroseconds}ms""");
c.complete(timer.elapsedMicroseconds);
}
});
for (var i = 0; i < times; i++) {
value.add(i);
}
return c.future;
}
Future<int> miniStream() {
final c = Completer<int>();
final value = MiniStream<int>();
final timer = Stopwatch();
timer.start();
value.listen((v) {
if (last == v) {
timer.stop();
print(
"""$v listeners notified | [MINI_STREAM] time: ${timer.elapsedMicroseconds}ms""");
c.complete(timer.elapsedMicroseconds);
}
});
for (var i = 0; i < times; i++) {
value.add(i);
}
return c.future;
}
void main() async {
test('run benchmarks from ValueNotifier', () async {
await getValue();
await valueNotifier();
times = 30000;
await getValue();
await valueNotifier();
});
test('percentage test', () {
final referenceValue = 200;
final requestedValue = 100;
print('''
referenceValue is ${calculePercentage(referenceValue, requestedValue)}% more than requestedValue''');
expect(calculePercentage(referenceValue, requestedValue), 100);
});
test('run benchmarks from Streams', () async {
var dart = await stream();
var getx = await getStream();
var mini = await miniStream();
print('''
GetStream is ${calculePercentage(dart, getx).round()}% more fast than Default Stream with $last listeners''');
times = 30000;
dart = await stream();
getx = await getStream();
mini = await miniStream();
print('dart is $dart');
print('getx is $getx');
print('mini is $mini');
print('''
GetStream is ${calculePercentage(dart, getx).round()}% more fast than Default Stream with $last listeners''');
});
}
int calculePercentage(int dart, int getx) {
return (dart / getx * 100).round() - 100;
}