36a8252f67
Adds a widget test asserting each destination icon keeps its Y position whether the rail is collapsed or expanded — a recurring regression. To drive expansion without a hover gesture (which trips RenderFlex overflow mid-transition), a test-only startSidebarExpanded flag threads StudioApp -> StudioShell -> _Sidebar (controller starts at 1.0, hover disabled); _SidebarItems get stable ValueKeys. analyze clean; new test and the existing smoke test pass. Signed-off-by: flemming-it <stefan.a.flemming@googlemail.com>
77 lines
2.6 KiB
Dart
77 lines
2.6 KiB
Dart
// Locks the sidebar invariant: destination icons sit at the same Y
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// whether the rail is collapsed or expanded. The header rows above the
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// destinations list have FIXED pixel heights (see _SidebarState), so
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// expanding the rail (a width-only change) must not shift any
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// destination vertically. This was a recurring regression source; this
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// test pins it.
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//
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// Expansion is driven via StudioApp(startSidebarExpanded: true), NOT a
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// hover gesture — hover mid-transition trips RenderFlex overflow in
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// widget tests (see widget_test.dart). With the flag the rail's
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// animation controller starts at value 1.0 (fully expanded), so no
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// animation needs to settle.
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import 'package:flutter/widgets.dart';
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import 'package:flutter_test/flutter_test.dart';
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import 'package:chain_studio/data/hub.dart';
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import 'package:chain_studio/main.dart';
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const _destinations = <String>[
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'welcome',
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'store',
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'doctor',
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'flows',
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'audit',
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'approvals',
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'federation',
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];
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Map<String, double> _destinationYs(WidgetTester tester) {
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final ys = <String, double>{};
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for (final id in _destinations) {
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final finder = find.byKey(ValueKey('sidebar-item-$id'));
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expect(finder, findsOneWidget, reason: 'destination "$id" must render');
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ys[id] = tester.getTopLeft(finder).dy;
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}
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return ys;
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}
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void main() {
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testWidgets(
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'sidebar destination Y positions are stable across rail expansion',
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(tester) async {
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// Collapsed (default).
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await tester.pumpWidget(
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const StudioApp(
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initialThemeMode: ThemeModeValue.system,
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initialLocale: Locale('en'),
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),
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);
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// pump (not pumpAndSettle): the app has long-lived timers/animations
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// that never "settle"; one frame is enough to lay the sidebar out.
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await tester.pump(const Duration(milliseconds: 100));
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final collapsed = _destinationYs(tester);
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// Expanded: controller starts at 1.0 via the flag, hover disabled.
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await tester.pumpWidget(
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const StudioApp(
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initialThemeMode: ThemeModeValue.system,
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initialLocale: Locale('en'),
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startSidebarExpanded: true,
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),
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);
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await tester.pump(const Duration(milliseconds: 100));
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final expanded = _destinationYs(tester);
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for (final id in _destinations) {
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expect(
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expanded[id],
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closeTo(collapsed[id]!, 0.5),
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reason: 'destination "$id" Y shifted on expansion '
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'(${collapsed[id]} -> ${expanded[id]}) — the rows above the '
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'destinations list must keep fixed heights',
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);
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}
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},
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);
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}
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