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koukibadr merged 1 commit into from
Jan 17, 2026
Merged

test: add async searchable list widget test #168

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206 changes: 206 additions & 0 deletions test/async_searchable_listview_test.dart
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Original file line number Diff line number Diff line change
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import 'package:flutter/material.dart';
import 'package:flutter_test/flutter_test.dart';
import 'package:searchable_listview/searchable_listview.dart';

import 'dummies/dummy_list_item.dart';

void main() {
group('''
Checking default async searchable listview display
''', () {
testWidgets('''
Should display a searchable listview with dummy list items.
checking default appearance.
''', (test) async {
final intList = List.generate(10, (index) => index);
var basicSearchableList = SearchableList<int>.async(
asyncListCallback: () async => intList,
itemBuilder: (item) => DummyListItem(index: item),
asyncListFilter: (query, _) =>
intList.where((item) => item.toString().contains(query)).toList(),
);

await test.pumpWidget(
MaterialApp(
home: Scaffold(
body: Center(
child: basicSearchableList,
),
),
),
);
await test.pumpAndSettle();

// Initial assertions
// Check that some items and the search field are present
expect(find.byType(DummyListItem), findsNWidgets(10));
expect(find.byType(TextField), findsOneWidget);
expect(find.byIcon(Icons.search), findsOneWidget);

final searchField = find.byType(TextField);
await test.enterText(searchField, '1');
await test.pumpAndSettle();

expect(find.byIcon(Icons.clear), findsOneWidget);
});

testWidgets('''
Checking search field customization.
''', (test) async {
final intList = List.generate(10, (index) => index);
var basicSearchableList = SearchableList<int>.async(
asyncListCallback: () async => intList,
itemBuilder: (item) => DummyListItem(index: item),
inputDecoration: InputDecoration(
labelText: 'Search Items',
border: OutlineInputBorder(),
),
asyncListFilter: (query, _) =>
intList.where((item) => item.toString().contains(query)).toList(),
);

await test.pumpWidget(
MaterialApp(
home: Scaffold(
body: Center(
child: basicSearchableList,
),
),
),
);
await test.pumpAndSettle();

// Initial assertions
// Check that some items and the search field are present
expect(find.text('Search Items'), findsOneWidget);
final searchField = find.byType(TextField);
expect(
test.widget<TextField>(searchField).decoration!.border
is OutlineInputBorder,
isTrue,
);
});
});

group('''
Async Searchable Listview Tests
''', () {
testWidgets('''
Should display a searchable listview with async data source.
''', (test) async {
final intList = List.generate(10, (index) => index);
var basicSearchableList = SearchableList<int>.async(
asyncListCallback: () async => intList,
itemBuilder: (item) => DummyListItem(index: item),
asyncListFilter: (query, _) =>
intList.where((item) => item.toString().contains(query)).toList(),
);

await test.pumpWidget(
MaterialApp(
home: Scaffold(
body: Center(
child: basicSearchableList,
),
),
),
);
await test.pumpAndSettle();
expect(find.text('Item 0'), findsOneWidget);
expect(find.text('Item 5'), findsOneWidget);
expect(find.byType(TextField), findsOneWidget);

final searchField = find.byType(TextField);
await test.enterText(searchField, '1');
await test.pumpAndSettle();

expect(find.text('Item 1'), findsOneWidget);
});

testWidgets('''
Checking filter when search yields no results.
''', (test) async {
final intList = List.generate(10, (index) => index);
var basicSearchableList = SearchableList<int>.async(
asyncListCallback: () async => intList,
itemBuilder: (item) => DummyListItem(index: item),
asyncListFilter: (query, _) =>
intList.where((item) => item.toString().contains(query)).toList(),
);

await test.pumpWidget(
MaterialApp(
home: Scaffold(
body: Center(
child: basicSearchableList,
),
),
),
);
await test.pumpAndSettle();

final searchField = find.byType(TextField);
await test.enterText(searchField, '12');
await test.pumpAndSettle();
expect(find.byType(DummyListItem), findsNothing);
});

testWidgets('''
Checking filter with empty list.
''', (test) async {
var basicSearchableList = SearchableList<int>.async(
asyncListCallback: () async => [],
itemBuilder: (item) => DummyListItem(index: item),
asyncListFilter: (query, _) => [],
);

await test.pumpWidget(
MaterialApp(
home: Scaffold(
body: Center(
child: basicSearchableList,
),
),
),
);
await test.pumpAndSettle();
expect(find.byType(DummyListItem), findsNothing);

final searchField = find.byType(TextField);
await test.enterText(searchField, '1');
await test.pumpAndSettle();
expect(find.byType(DummyListItem), findsNothing);
});

testWidgets('''
Checking custom empty widget when no results found.
''', (test) async {
final intList = List.generate(10, (index) => index);
var basicSearchableList = SearchableList<int>.async(
asyncListCallback: () async => intList,
itemBuilder: (item) => DummyListItem(index: item),
emptyWidget: const Text('No items found'),
asyncListFilter: (query, _) =>
intList.where((item) => item.toString().contains(query)).toList(),
);

await test.pumpWidget(
MaterialApp(
home: Scaffold(
body: Center(
child: basicSearchableList,
),
),
),
);
await test.pumpAndSettle();
expect(find.byType(DummyListItem), findsNWidgets(10));

final searchField = find.byType(TextField);
await test.enterText(searchField, '99');
await test.pumpAndSettle();
expect(find.byType(DummyListItem), findsNothing);
expect(find.text('No items found'), findsOneWidget);
});
});
}