bvandeusen
a7fcafadda
Renders nothing for the first [delay] (default 200ms) of sustained loading, then renders the [whileDelayed] child until loading completes. Mirrors the web useDelayed hook so a fast network response doesn't flash a skeleton. Used in the next commit's home screen rewrite; otherwise unused this slice. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
77 lines
2.4 KiB
Dart
77 lines
2.4 KiB
Dart
import 'package:flutter/material.dart';
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import 'package:flutter_test/flutter_test.dart';
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import 'package:minstrel/shared/delayed_loading.dart';
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void main() {
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testWidgets('renders nothing for the first 100ms of loading', (tester) async {
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await tester.pumpWidget(const MaterialApp(
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home: DelayedLoading(
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isLoading: true,
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delay: Duration(milliseconds: 200),
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whileDelayed: Text('LOADING'),
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whenReady: Text('READY'),
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),
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));
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await tester.pump(const Duration(milliseconds: 100));
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expect(find.text('LOADING'), findsNothing);
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expect(find.text('READY'), findsNothing);
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});
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testWidgets('renders whileDelayed after delay elapses', (tester) async {
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await tester.pumpWidget(const MaterialApp(
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home: DelayedLoading(
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isLoading: true,
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delay: Duration(milliseconds: 200),
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whileDelayed: Text('LOADING'),
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whenReady: Text('READY'),
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),
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));
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await tester.pump(const Duration(milliseconds: 250));
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expect(find.text('LOADING'), findsOneWidget);
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});
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testWidgets('renders whenReady when not loading', (tester) async {
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await tester.pumpWidget(const MaterialApp(
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home: DelayedLoading(
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isLoading: false,
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whileDelayed: Text('LOADING'),
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whenReady: Text('READY'),
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),
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));
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expect(find.text('READY'), findsOneWidget);
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});
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testWidgets('resets timer when isLoading flips false then true', (tester) async {
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await tester.pumpWidget(const MaterialApp(
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home: DelayedLoading(
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isLoading: true,
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delay: Duration(milliseconds: 200),
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whileDelayed: Text('LOADING'),
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whenReady: Text('READY'),
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),
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));
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await tester.pump(const Duration(milliseconds: 150));
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// Switch to not-loading, then back to loading.
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await tester.pumpWidget(const MaterialApp(
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home: DelayedLoading(
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isLoading: false,
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whileDelayed: Text('LOADING'),
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whenReady: Text('READY'),
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),
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));
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await tester.pumpWidget(const MaterialApp(
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home: DelayedLoading(
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isLoading: true,
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delay: Duration(milliseconds: 200),
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whileDelayed: Text('LOADING'),
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whenReady: Text('READY'),
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),
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));
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// Original 150ms shouldn't carry over — at 100ms past restart
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// we should still see nothing.
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await tester.pump(const Duration(milliseconds: 100));
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expect(find.text('LOADING'), findsNothing);
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});
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}
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