Files
plezy/test/widgets/collapsible_text_test.dart
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Dart

import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
import 'package:flutter_test/flutter_test.dart';
import 'package:plezy/widgets/collapsible_text.dart';
void main() {
testWidgets('select expands overflowing focused text', (tester) async {
final focusNode = FocusNode(debugLabel: 'test_collapsible_text');
addTearDown(focusNode.dispose);
const text =
'This program summary is intentionally long enough to overflow a narrow details sheet and require expansion.';
await tester.pumpWidget(
MaterialApp(
home: Scaffold(
body: Center(
child: SizedBox(
width: 120,
child: CollapsibleText(text: text, maxLines: 1, focusNode: focusNode),
),
),
),
),
);
expect(_collapsiblePlainText(tester), isNot(text));
focusNode.requestFocus();
await tester.pump();
await tester.sendKeyEvent(LogicalKeyboardKey.enter);
await tester.pumpAndSettle();
expect(_collapsiblePlainText(tester), text);
expect(focusNode.skipTraversal, isTrue);
});
testWidgets('reports whether text overflows', (tester) async {
bool? overflows;
await tester.pumpWidget(
MaterialApp(
home: Scaffold(
body: SizedBox(
width: 120,
child: CollapsibleText(
text: 'This summary is long enough to overflow in this narrow box.',
maxLines: 1,
onOverflowChanged: (value) => overflows = value,
),
),
),
),
);
await tester.pump();
expect(overflows, isTrue);
});
}
String _collapsiblePlainText(WidgetTester tester) {
final textFinder = find.byWidgetPredicate((widget) => widget is Text && widget.textSpan != null);
return tester.widget<Text>(textFinder).textSpan!.toPlainText();
}