109 lines
3.8 KiB
Dart
109 lines
3.8 KiB
Dart
import 'package:flutter/material.dart';
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import 'package:flutter_screenutil/flutter_screenutil.dart';
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import 'package:flutter_test/flutter_test.dart';
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import 'package:miler/views/offline/offline_banner.dart';
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import 'package:miler/views/helpers/constants/Colorconstants.dart';
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/// ── Losing signal must not take the job away ──
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///
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/// Connectivity used to stack an opaque full-screen page over the entire app.
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/// A rider at a doorstep in a basement lost the address, the customer, the
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/// parcel count and the OTP field — while holding the parcel. Everything he
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/// needs at the door was already fetched; the network is needed to *report* the
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/// stop, not to work it.
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void main() {
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Future<void> pump(WidgetTester tester, {required bool offline}) async {
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tester.view.physicalSize = const Size(390 * 3, 844 * 3);
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tester.view.devicePixelRatio = 3.0;
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addTearDown(tester.view.reset);
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await tester.pumpWidget(
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ScreenUtilInit(
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designSize: const Size(390, 844),
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builder: (_, _) => MaterialApp(
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home: OfflineScope(
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offline: offline,
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child: Scaffold(
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body: Column(
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children: const [
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Text('45, Lake View Apartments'),
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Text('Priya Sharma'),
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Text('Delivery OTP'),
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],
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),
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),
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),
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),
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),
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);
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await tester.pumpAndSettle();
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}
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testWidgets('the job stays on screen while offline', (tester) async {
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await pump(tester, offline: true);
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// The four things a rider cannot do the stop without.
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expect(find.text('45, Lake View Apartments'), findsOneWidget);
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expect(find.text('Priya Sharma'), findsOneWidget);
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expect(find.text('Delivery OTP'), findsOneWidget);
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expect(find.byType(OfflineBanner), findsOneWidget);
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});
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testWidgets('the strip takes its own row — it never covers content', (
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tester,
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) async {
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await pump(tester, offline: true);
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// A Column, not a Stack, on purpose: a floating bar over the page would sit
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// on top of the OTP box, which is worse than the blocker it replaced.
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final strip = tester.getRect(find.byType(OfflineBanner));
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final firstContent = tester.getRect(find.text('45, Lake View Apartments'));
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expect(strip.bottom, lessThanOrEqualTo(firstContent.top));
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});
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testWidgets('it is thin enough to cost the job nothing', (tester) async {
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await pump(tester, offline: true);
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// Roughly one line plus padding. A "banner" that eats 15% of an 844pt
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// screen is a blocker with a nicer name.
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expect(tester.getSize(find.byType(OfflineBanner)).height, lessThan(64));
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});
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testWidgets('it says what happens next, not just what is wrong', (
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tester,
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) async {
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await pump(tester, offline: true);
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final text = tester
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.widgetList<Text>(
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find.descendant(
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of: find.byType(OfflineBanner),
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matching: find.byType(Text),
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),
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)
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.first
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.data!;
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expect(text, contains('Offline'));
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expect(text.toLowerCase(), contains('sync'));
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});
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testWidgets('online, it occupies no space at all', (tester) async {
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await pump(tester, offline: false);
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expect(find.byType(OfflineBanner), findsNothing);
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expect(tester.getRect(find.text('45, Lake View Apartments')).top, lessThan(20));
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});
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testWidgets('the strip carries a readable label on its fill', (tester) async {
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await pump(tester, offline: true);
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final material = tester.widget<Material>(
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find
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.descendant(
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of: find.byType(OfflineBanner),
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matching: find.byType(Material),
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)
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.first,
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);
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// `warning`, which the contrast contract holds to 4.5:1 behind white.
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expect(material.color, ColorConstants.warning);
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});
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}
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