42 lines
1.1 KiB
Dart
42 lines
1.1 KiB
Dart
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// Tests for the exponential-backoff clamping logic used in AccountSyncManager.
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// The manager itself requires Flutter DI, so we test the math standalone.
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import 'package:test/test.dart';
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int nextBackoff(int current) => (current * 2).clamp(5, 300);
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void main() {
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group('sync backoff', () {
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test('starts at 5 seconds', () {
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expect(5, 5);
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});
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test('doubles each failure', () {
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var backoff = 5;
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backoff = nextBackoff(backoff);
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expect(backoff, 10);
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backoff = nextBackoff(backoff);
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expect(backoff, 20);
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backoff = nextBackoff(backoff);
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expect(backoff, 40);
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backoff = nextBackoff(backoff);
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expect(backoff, 80);
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backoff = nextBackoff(backoff);
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expect(backoff, 160);
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});
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test('clamps at 300 seconds (5 minutes)', () {
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var backoff = 5;
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for (var i = 0; i < 20; i++) {
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backoff = nextBackoff(backoff);
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}
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expect(backoff, 300);
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});
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test('never goes below 5 seconds', () {
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expect(nextBackoff(1), 5);
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expect(nextBackoff(0), 5);
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});
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});
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}
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